Entries |
Document | Title | Date |
20080203273 | System and Method for Controlling a Led Luminary - The present invention relates to a control system ( | 08-28-2008 |
20080210846 | DRIVEN LIGHT SHIELD FOR IMAGERS - An actively driven, metal light shield for shielding floating diffusion regions and amplifiers of multi-port CCD or CMOS imager arrays from unwanted light is disclosed. The driven shield overlies one or more floating diffusion regions and buffer amplifiers lying outside the active pixel area of the imager (non-imaging area), which is also protected from unwanted light by a fixed potential shield. The driven shield is directly electrically connected to a source node of a source-follower amplifier stage, i.e., the buffer amplifiers non-inverting output. The fixed potential shield is electrically connected to a DC voltage capable of eliminating charging of the fixed potential shield and substantially overlies the non-imaging area and at least partially overlapping the driven shield. The voltage on the source-follower output follows the voltage impressed on the floating diffusion region capacitance which then drives the driven shield, thereby reducing parasitic capacitance added by the fixed potential shield to floating diffusion regions by about an order of magnitude, which improves the ratio of output voltage of the floating diffusion regions to applied charge. Separate driven shields can also be applied to subsequent stages of source follower amplifiers to reduce parasitic capacitance induced by the fixed potential shield. | 09-04-2008 |
20080272272 | REMOTE CONTROL SYSTEMS THAT CAN DISTINGUISH STRAY LIGHT SOURCES - Remote control systems that can distinguish predetermined light sources from stray light sources, e.g., environmental light sources and/or reflections are provided. The predetermined light sources can be disposed in asymmetric substantially linear or two-dimensional patterns. The predetermined light sources also can output waveforms modulated in accordance with one or more signature modulation characteristics. The predetermined light sources also can output light at different signature wavelengths. | 11-06-2008 |
20080290250 | Color Lighting Device - The invention relates to a color lighting device comprising at least one light-emitting source ( | 11-27-2008 |
20080290251 | Led Lighting System and Control Method - The present invention relates to a light emitting diode (LED) lighting system ( | 11-27-2008 |
20090045317 | OPTICAL CAVITY EMITTER ARRANGEMENTS WITH SPECTRAL ALIGNMENT AND METHODS THEREFOR - Aspects of the disclosure are directed to optical microcavities and emitters that are spectrally aligned in an arrangement having an array of such microcavity-emitter combinations. The spectral alignment can be selective, in that a portion of the array of microcavity-emitter combinations, or a single microcavity-emitter combination, can be individually spectrally aligned. In specific examples, light is coupled within a semiconductor device having wavelength-dependent structures and optical cavities optically couple to the wavelength-dependent structures. One of the optical cavities and a wavelength-dependent structure are spectrally aligned, independent of another of the optical cavities. | 02-19-2009 |
20090095879 | CONTROL OF SEMICONDUCTOR LIGHT EMITTING ELEMENT - A light source device including a semiconductor light emitting element and a control section for controlling the semiconductor light emitting element in accordance with an input value. The control section includes a supply section that supplies the semiconductor light emitting element with a drive current based on the input value and an estimated threshold current of the semiconductor light emitting element, and an estimation section that obtains the estimation of the threshold current using the drive current and the amount of light detected to be emitted from the semiconductor light emitting element. | 04-16-2009 |
20090101791 | Optical Sensor - The invention relates to an optical sensor ( | 04-23-2009 |
20090101792 | WIRELESS ILLUMINATION SENSING ASSEMBLY - A wireless illumination sensing assembly for sensing a property of illumination within a semiconductor processing environment is provided. The sensing assembly has a power source and a wireless communication module coupled to the power source. Measurement circuitry is also provided. At least one illumination sensor having an electrical characteristic that varies with the property of illumination. The illumination sensor(s) is/are coupled to the measurement circuitry. | 04-23-2009 |
20090114799 | IMAGE CAPTURING SYSTEM, IMAGE CAPTURING METHOD, AND RECORDING MEDIUM - Provided is an image capturing system, including an image capturing section that includes a plurality of first light receiving elements that receive light in a specified wavelength region and light in a first wavelength region, which is different from the specified wavelength region, and a plurality of second light receiving elements that receive light in the specified wavelength region and light in a second wavelength region, which is different from the specified wavelength region; and a control section that controls a spectrum of the light received by the plurality of first light receiving elements and the plurality of second light receiving elements. The control section, at a first timing, causes the plurality of first light receiving elements to receive light in a wavelength region including the first wavelength region from a subject and causes the plurality of second light receiving elements to receive light in a wavelength region including the second wavelength region from the subject and, at a second timing, causes the plurality of first light receiving elements and the plurality of second light receiving elements to receive light in a wavelength region including the specified wavelength region from the subject. | 05-07-2009 |
20090134309 | CHIP FOR ANALYZING A MEDIUM COMPRISING AN INTEGRATED ORGANIC LIGHT EMITTER - A chip for analyzing a medium includes an organic light emitter for emitting a light signal, a photodetector including a detector area, a layer sequence separating the organic light emitter and the detector area, and a reservoir into which the medium may be introduced. The organic light emitter and the photodetector are optically couplable by means of a path of rays of the light signal, and the reservoir is arranged within the path of rays of the light signal. | 05-28-2009 |
20090146044 | OPTICAL DISPLACEMENT DETECTION APPARATUS AND OPTICAL DISPLACEMENT DETECTION METHOD - The present invention discloses an optical displacement detection apparatus and an optical displacement detection method. The optical displacement detection apparatus comprises: at least two light sources for projecting light of different spectrums to a surface under detection, respectively; an image capturing unit for receiving light reflected from the surface under detection and converting it into electronic signals; and a processor and control circuit for calculating displacement according to the electronic signals from the image capturing unit, wherein the processor and control circuit is capable of switching between the light sources. | 06-11-2009 |
20090159776 | IMAGE CAPTURING SYSTEM, IMAGE CAPTURING METHOD, AND COMPUTER READABLE MEDIUM - An image capturing system includes an image capturing section that includes a plurality of light receiving elements configured to receive light in a first wavelength range and light in a second wavelength range, a control section that controls the light in the second wavelength range to be received by each of the plurality of light receiving elements more frequently than the light in the first wavelength range, where the light in the second wavelength range has a lower spectral intensity than the light in the first wavelength range, and an image generating section that generates an image by using the light in the first wavelength range received by the plurality of light receiving elements at a given timing and the light in the second wavelength range received by the plurality of light receiving elements at a different timing. | 06-25-2009 |
20090166508 | SYSTEM AND METHOD FOR STABILIZING WAVELENGTH OF LED RADIATION IN BACKLIGHT MODULE - The system for stabilizing wavelength of LED (light emitting diode) radiation in backlight module of the LCD (liquid crystal display) comprises two photodiodes, a plurality of LEDs, a microprocessor unit (MCU) and a driver circuit, wherein two photodiodes have different photo sensitivities in response different wavelengths. A target value, associated with a ration of photo sensitivities of the two photodiodes under two different wavelength radiations, is stored to the MCU as a referred value. Thus, another wavelength (or wavelength variation) of LED radiation is derived by comparing another target value with the referred value. The MCU determines a correction constant based on a colour match function of the derived wavelength, and outputs a compensation signal to compensate LED, wherein the compensation signal is equal to multiplication of the correction constant and an original light intensity compensation signal for compensating light intensity loss of the LED. | 07-02-2009 |
20090166509 | Optical power for electronic circuits using a single photovoltaic component - Optical power uses light to run remote, isolated circuits without metallic wires. An optical power system may include a single photovoltaic component that supplies a first voltage in response to impingement of light on the photovoltaic component. A voltage booster receives the first voltage from the photovoltaic component and supplies a second voltage signal at a second voltage that is greater than the first voltage. The optical power system may be integrated with a sensor that is powered by the second voltage from the voltage booster. The photovoltaic component may be an inexpensive light emitting diode. | 07-02-2009 |
20090218475 | Laser Annealing Apparatus and Method - The irradiation unevenness caused by drift occurring in a beam short-axis direction is reduced without adding a new beam shaping unit and affecting the propagation characteristic of a beam in an optical resonator. A position deviation detector for detecting a position deviation of a laser beam before passing through a beam shaping optical system, an angle deviation detector for detecting an angle deviation of the laser beam before passing through the beam shaping optical system, a deflection mirror for deflecting the laser beam, which is disposed in an optical path between a laser and an object (substrate), and a mirror controller for controlling orientation of the deflection mirror, based on detection data obtained using the position deviation detector and the angle deviation detector so as to eliminate the position deviation from a reference irradiation position in the short-axis direction of a linear beam on a surface to be irradiated. | 09-03-2009 |
20090272877 | METHOD AND APPARATUS OF MEASURING BACKWARD LIGHT, AND LASER PROCESSING METHOD - The present invention relates to a method of measuring backward light, which is constructed for checking, prior to laser processing, backward light that propagates backward through an isolator included in a laser processing apparatus. The present invention also relates to a laser processing method and the like. A laser processing apparatus has an optical head provided with a laser light source part, light guide, and isolator. The optical head has an emitting optical system, irradiation optical system, and light collecting optical system. The method of measuring backward light uses a photodetector to detect, from reference light introduced from a measurement light source into the optical head, the power of an optical component that has passed through the isolator, while changing the position of the measurement light source. The laser processing method performs laser processing by using the laser processing apparatus that has the optical head in which the arrangement of optical components is adjusted beforehand on the basis of the result of detection or result of measurement. | 11-05-2009 |
20090302196 | Position adjustment device for reflector, detection method and detection device - laser light is beamed substantially perpendicular to a screen member, while temporarily fixing the laser transmitter at three of more points at regular intervals in a rotary direction about the rotary axis TA. The rotary axis TA is defined by a straight line that passes through the light emitting opening of the laser transmitter and is substantially perpendicular to the screen member. The beamed direction of the laser light beamed from a laser transmitter is adjusted by a transmitter position adjustment portion so as to make the laser light hit the center of the three or more points on the screen member. | 12-10-2009 |
20100006740 | DEVICE AND METHOD FOR DISPLAYING IMAGE - An image display device is provided, by which variations in drive sensitivity of a scan mirror is corrected. Processing executed by a CPU in a laser projector includes the steps of: driving a scanner mirror in a vertical direction; allowing at least one of a green laser and red/blue lasers to emit light; calculating stay time in a light-receiving region in a photoreceptor; comparing the calculated stay time with ideal stay time T | 01-14-2010 |
20100006741 | DEVICE AND METHOD FOR DISPLAYING IMAGE - A deviation of an optic axis of a laser projector is detected, and the deviation is corrected. Laser projector's CPU executes: commanding a laser beam source of one color, out of laser beam sources of three colors, to emit a laser beam; shutting off the laser when sensing that the laser beam is received in a light-receiving region; applying a laser of a color to be detected as to the presence or absence of a deviation of the axis until its reception in the light-receiving region is sensed; keeping time starting when light reception in the light-receiving region is sensed and ending when light reception in a light-receiving region adjacent thereto is sensed; calculating a relative time difference of each of the colors with respect to a reference color; and correcting a light emission timing of the laser beam source of each of the color, based on the calculated time. | 01-14-2010 |
20100012817 | OPTICAL ARRANGEMENT - The invention relates to optical arrangements which can be provided, preferably also in miniaturized form, for the most varied applications. They can be used in many sectors of life and also commercially, and indeed whenever information should be presented visually and/or optical information should be recognized and taken into account. It is the object of the invention to provide optical arrangements with which different optical information can be utilized in more complex form together in one arrangement. The optical arrangement in accordance with the invention is configured such that elements both emitting and detecting electromagnetic radiation are arranged on a common substrate or are configured thereat. A plurality of these elements are preferably present together in each case. It can, however, also be sufficient for specific applications to provide in each case an emitting or a detecting element with a plurality of the respective other elements. | 01-21-2010 |
20100044549 | ALIGNMENT AND ADJUSTMENT OF A LIGHT PATH - An efficient method and device for aligning or adjusting a collimated light beam of a linear smoke detector having a light transmitter, a light receiver, a deflection unit, and an evaluation unit. The evaluation unit evaluates the intensity of the collimated light beam that is emitted by the light transmitter and is received at the light receiver. The collimated light beam is deflected by the deflection unit based on the evaluation result from the evaluation unit until a predetermined intensity is reached as detected by the light receiver. | 02-25-2010 |
20100044550 | SPECTROSCOPIC DEVICE - Quantitative comparison or calculation of a plurality of images in different transmission bands is facilitated even if the transmission bandwidth of the spectroscopic element is different at different wavelengths. Provided is a spectroscopic device ( | 02-25-2010 |
20100051781 | EVALUATION DEVICE OF OPTICAL WRITING DEVICE AND EVALUATION METHOD THEREOF - Disclosed is an evaluation device of an optical writing device, comprising: the optical writing device; a light reception section; a drive section; and a control section to light each light emitting element in a previously set lighting pattern based on a light amount; to drive the drive section to move the light reception section to a position opposite to the light emitting element to be lit; to calculate characteristic data based on a light amount value of the light received by the light reception section; to calculate a first calculation value based on the characteristic data for each light emitting element; to calculate a second calculation value different from the first calculation value based on the characteristic data; to calculate a third calculation value based on the first calculation value and the second calculation value; and to instruct the display section to display the third calculation value. | 03-04-2010 |
20100065720 | OPTICAL SENSOR AND SENSING METHOD - An optical sensor includes an infra red LED, a photodectector and a lock in charge amplifier. The photodetector passes charge to a feedback capacitor of the charge amplifier following an illumination cycle during which the LED is emitting and also following an illumination cycle during which the LED does not emit. An amplifier presents an output indicative of the difference between the charge generated at the photodectector during the illuminated and non-illuminated cycles. | 03-18-2010 |
20100065721 | Enhanced glare reduction - The driver of a vehicle ( | 03-18-2010 |
20100102199 | LIGHTING DEVICE - There is provided a lighting device, comprising at least one light emitter, at least one reflector and at least one sensor. The sensor is positioned within a region which receives direct light from the light emitter when the light emitter is emitting light. In some embodiments, the light emitter comprises one or more light emitting diode. In some embodiments, the sensor is positioned between the light emitter and a power supply. In some embodiments, the reflector comprises at least one opening, and light emitted by the light emitter passes through the opening to the sensor. In some embodiments, the sensor is sensitive to only some wavelengths of visible light. Some embodiments are back-reflecting lamps, and some are forward-reflecting lamps. | 04-29-2010 |
20100127154 | NITRIDE-BASED SEMICONDUCTOR LASER DEVICE AND OPTICAL PICKUP - A nitride-based semiconductor laser device includes a facet coating film including an alteration preventing layer formed on a light reflecting side facet of a nitride-based semiconductor element layer and a reflectance control layer formed on the alteration preventing layer. The reflectance control layer is formed by a high refractive index layer and a low refractive index layer which are alternately stacked, the alteration preventing layer is constituted by stacking at least two layers, each of which is formed by a dielectric layer made of a nitride, an oxide or an oxynitride. The alteration preventing layer has a first layer made of a nitride in contact with the light reflecting side facet, and a thickness of each of the layers constituting the alteration preventing layer is smaller than that of the high refractive index layer and is smaller than that of the low refractive index layer. | 05-27-2010 |
20100148033 | NETWORK CENTRIC DIRECTED ENERGY SYSTEMS - A system is provided where the system comprises a plurality of optical sources, each optical source configured to generate an optical beam and direct the optical beam from each of the plurality of optical sources towards a target; a beam discriminator module configured to monitor a parameter for each optical beam generated from each of the optical source; and a position sensor configured to receive a feedback from the beam discriminator module based on the monitored parameter; wherein based on the feedback, the position sensor determines if any optical beam at the target is off-target. | 06-17-2010 |
20100155572 | Obtaining Sensing Results and/or Data in Response to Object Detection - An encoder/sensor can obtain sensing results from objects in an encoding/sensing region; a trigger detector can respond to objects in a trigger detection region, providing respective trigger signals; and a relative motion component can cause relative motion of objects into the trigger detection region, from it into the encoding/sensing region, and within the encoding/sensing region. In response to an object's trigger signal, control circuitry can cause the encoder/sensor and/or the relative motion component to operate so that the encoder/sensor obtains sensing results indicating a time-varying waveform and processing circuitry can obtain data from the sensing results indicating a time-varying waveform. The time-varying waveform can include information resulting from the relative motion within the encoding/sensing region. The encoder/sensor and trigger detector can be implemented, for example, with discrete components or as sets of cells in a photosensing array on an integrated circuit. | 06-24-2010 |
20100213349 | Optical Mirror System - An optical apparatus comprising a first mirror ( | 08-26-2010 |
20100219326 | Optoelectronic sensor with alignment light transmitter - An optoelectronic sensor ( | 09-02-2010 |
20100243858 | AUTOMATIC FAULT DETECTION AND LASER SHUT-DOWN METHOD FOR A LASER-GENERATED WINDSHIELD DISPLAY - The laser of a laser-generated windshield display is controlled to initially deflect the laser beam in the direction of a reflective target disposed outside a display region of the windshield, and a sensor disposed in a reflection path of the target is sampled to detect the presence of a feedback signal that occurs when the laser beam impinges on the sensor. If the feedback signal is detected, the laser beam is deflected onto the display region to generate a driver display; but if the feedback signal is not detected, the laser is automatically turned-off. Once the laser is turned off for lack of a feedback signal, the control is repeated following a specified delay interval so that the driver display will automatically resume the when the condition that prevented generation of the feedback signal is cured. | 09-30-2010 |
20100243859 | APPARATUS FOR CONTROLLING ANGLE OF INCIDENCE OF MULTIPLE ILLUMINATION BEAMS - Provided is an apparatus for projecting multiple beams to a structure on a workpiece comprising a first light source generating a first illumination beam and a second light source generating a second illumination beam, an illumination primary mirror configured to reflect the first illumination beam onto the structure of the workpiece at a first angle of incidence, generating a first detection beam, and configured to reflect the second illumination beam onto the workpiece at a second angle of incidence, generating a second detection beam, a separate illumination secondary mirror positioned relative to the illumination primary mirror so as make the first angle of incidence substantially the same or close to a calculated optimum first angle of incidence and make the second angle of incidence substantially the same or close to a calculated optimum second angle of incidence. The first and second detection beams are diffracted off the structure at the corresponding angle of incidence to a detection primary mirror, reflected onto a separate secondary detection mirror and other optical components on the detection path, and onto spectroscopic detectors. | 09-30-2010 |
20100243860 | CONTROLLING ANGLE OF INCIDENCE OF MULTIPLE- BEAM OPTICAL METROLOGY TOOLS - Provided is a method of controlling multiple beams directed to a structure in a workpiece, the method comprising generating a first illumination beam with a first light source and a second illumination beam with a second light source, projecting the first and second illumination beams onto a separate illumination secondary mirror, reflecting the first and second illumination beams onto an illumination primary mirror, the reflected first and second illumination beams projected onto the structure at a first and second angle of incidence respectively, the reflected first and second illumination beams generating a first and second detection beams respectively. The separate illumination secondary mirror is positioned relative to the illumination primary mirror so as make the first angle of incidence substantially the same or close to a calculated optimum first angle of incidence and make the second angle of incidence substantially the same or close to a calculated optimum second angle of incidence. The first and second detection beams are diffracted off the structure at the corresponding angle of incidence to a detection primary mirror, reflected onto a separate secondary detection mirror and other optical components on the detection path, and onto spectroscopic detectors. | 09-30-2010 |
20100243861 | BEAM IRRADIATION DEVICE - A beam irradiation device includes a photodetector which receives servo light; a signal processing section which generates a position detection signal based on a detection signal from the photodetector; and a control section which controls the laser light source and the actuator for beam scanning based on the position detection signal. The signal processing section performs a sampling operation with respect to the detection signal from the photodetector at two consecutive sampling timings. The signal processing section includes an A/D converting section which converts a difference between two sampling values obtained by the sampling operation into a digital signal, and a computing section which computes the position detection signal based on the digital signal from the A/D converting section. | 09-30-2010 |
20100327147 | Optical Filter Control - A system and method for controlling an optical filter is provided. The system and method includes dithering a delay of an optical path within an optical filter unit cell, measuring a position of a filter zero, measuring a position of a filter pole, or measuring positions of both a filter zero and a filter pole by observing an output of the unit cell when the delay is dithered, and using the measurement as feedback for maintaining the position of the filter zero at a desired position, maintaining the position of the filter pole at a desired position, or maintaining the positions of both the filter zero and the filter pole at desired positions. | 12-30-2010 |
20110006188 | PROXIMITY SENSORS WITH IMPROVED AMBIENT LIGHT REJECTION - In accordance with an embodiment, a proximity sensor includes a driver, a photodiode (PD), an analog-to-digital converter (ADC) with analog-to-digital-to-analog (ADA) feedback, and a controller. The driver is adapted to selectively drive a light source. The photodiode (PD) is adapted to produce a photodiode current signal (Idiode) indicative of an intensity of light detected by the PD, where the light detected by the PD can include ambient light and/or light transmitted by the light source that was reflected off an object proximate the PD. The controller is adapted to control the driver and the ADC with ADA feedback. A digital output of the ADC with ADA feedback is indicative of a proximity of an object to the PD with at least a majority of the ambient light detected by the PD rejected. | 01-13-2011 |
20110012010 | ILLUMINATION SYSTEM FOR ILLUMINATING A MASK IN A MICROLITHOGRAPHIC PROJECTION EXPOSURE APPARATUS - An illumination system for illuminating a mask in a microlithographic projection exposure apparatus includes an array of mirrors or other beam deflecting elements. Each beam deflecting element produces on the surface a projection light spot at a position that is variable by changing a deflection angle produced by the beam deflecting element. A spot shape measuring unit measures the shapes of spots which are produced on the spot measuring unit by the beam deflecting elements. The spot shape measuring unit is arranged outside of every possible path projection light is allowed to take between the array and the mask. A control unit controls the beam deflecting elements such that, at a given instant during an exposure operation of the apparatus, at least one beam deflecting element directs projection light exclusively on the spot shape measuring unit, and at least some beam deflecting elements direct projection light exclusively on the surface. | 01-20-2011 |
20110049328 | Device for measuring the line of sight jitter of an optical instrument - Device for measuring the line of sight jitter of an optical instrument mounted on an optical platform, includes:
| 03-03-2011 |
20110062309 | OPTICAL FAULT MONITORING - Various embodiments related to monitoring for optical faults in an optical system are disclosed. For example, one disclosed embodiment provides, in an optical system comprising a light source, a light outlet, and an optical element disposed between the light source and the light outlet, a method of monitoring for optical system faults. The method includes detecting, via a light sensor directed toward an interface surface of the optical element closest to the light source, an intensity of light traveling from the interface surface of the optical element to the light sensor, and comparing an intensity of light detected to one or more threshold intensity values. The method further includes identifying an optical system fault condition based on comparing the intensity of light detected to one or more threshold values, and modifying operation of the optical system. | 03-17-2011 |
20110101202 | OPTICAL SCANNING APPARATUS AND IMAGE FORMING APPARATUS PROVIDED WITH THE SAME - An optical scanning apparatus including: a MEMS mirror that deflects an optical beam output from a light source; a drive unit that drives the MEMS mirror at a constant cycle; and a photodetector device that detects the optical beam output from the light source, a deflection state of the MEMS mirror is obtained from a relationship between a phase of a drive phase signal input to the drive unit and a phase of a detection signal of the photodetector device. For example, time T is detected between output of the drive phase signal and output of the detection signal from the photodetector device, and maximum deflection angle θ | 05-05-2011 |
20110127404 | MEMS Scan Controller Generating Clock Frequency and Control Method Thereof - A Micro Electronic Mechanical System (MEMS) scan controller generating clock frequency and a control method thereof are disclosed. The MEMS scan controller is for a MEMS mirror in a bi-direction laser scanning units (LSU). By detecting resonant frequency of the MEMS mirror, the scan controller sends frequency modulation signal and amplitude modulation signal of the MEMS mirror to a bridge circuit of the MEMS mirror for adjusting and stabilizing the MEMS mirror. A clock signal corresponding to the resonant frequency of the MEMS mirror at the moment is also sent so that scan data is sent within the effective scanning window in forward direction/reverse direction. Thus high-precision scanning is achieved. | 06-02-2011 |
20110127405 | OPTICAL STIMULATION OF PHOTOSENSITIZED CELLS - This invention describes a device for optical stimulation of cells and other biological structures. It has an ability to target multiple cells and/or multiple sub-cellular targets. The stimulation optical pattern on each cell can be independently controlled with individual frequencies. The light sensitivity of the cells can be imparted as a result of genetic expression of surface and/or subsurface proteins, chemical modification of existing proteins, or via the release of caged entities which in turn act to stimulate the cell through chemical means. The embodiment is capable of functioning on neurons but can also be used for other cells. It can perform optimal stimulation with sub-cellular resolutions, record the activity of the targeted cells and perform processing to ensure calibration. | 06-02-2011 |
20110220775 | SYSTEMS, METHODS, AND APPARATUSES FOR DETECTING OPTICAL SIGNALS FROM A SAMPLE - An optical system configured to detect optical signals during imaging sessions. The optical system includes an objective lens that has a collecting end that is positioned proximate to a sample and configured to receive optical signals therefrom. The optical system also includes a removable path compensator that is configured to be located at an imaging position between the collecting end of the objective lens and the sample. The path compensator adjusts an optical path of the light emissions when in the imaging position. Also, the optical system includes a transfer device that is configured to move the path compensator. The transfer device locates the path compensator at the imaging position for a first imaging session and removes the path compensator from the imaging position for a second imaging session. | 09-15-2011 |
20110266415 | SENSOR DEVICE WITH TILTING OR ORIENTATION-CORRECTING PHOTO SENSOR FOR ATMOSPHERE CREATION - The present invention relates to a method and a device for controlling a physical property of light emitted from a light source. In particular, the invention can be applied to a lighting system for atmosphere creation. The measurements needed for feedback control are made at a portable user device comprising a planar photodetector. More or less all industrially available photodetectors are of the planar type, but planarity is in fact a necessary feature to achieve faithful relative measurements. Since the user device is portable, variations in the orientation of the photodetector can introduce large and unpredictable measurement errors, making effective control of the light source impossible. According to one embodiment of the invention, the orientation-dependent errors are eliminated by measuring the actual orientation of the photodetector and processing the detection signal appropriately. According to a second embodiment, the photodetector is movably mounted in the user device in order to retain its preferred orientation irrespective of the orientation of the user device. In a third embodiment, the emitted light is monitored by a plurality of photodetectors; knowing the actual orientation of the user device, the control device can give priority to the measurements coming from the best oriented photodetector at every instant. | 11-03-2011 |
20110278433 | Light Sensing System and Control Method Thereof - The present invention discloses a light sensing system and a control method thereof. The light sensing system comprises a body, a plurality of first light sensors, a base, a plurality of second light sensors and a processing module. A through hole is disposed on the body. The first light sensors are disposed symmetrically on the body and generating a plurality of first sensing signal after sensing lights correspondingly. The base is arranged under the body. The second light sensors are disposed symmetrically on the base, while the geometric center of the second light sensors corresponds to the geometric center of the through hole. The second light sensors generating a plurality of second sensing signals correspondingly after sensing lights via the through hole. The processing module connects to the first and the second light sensors, and controls the light sensing system according to the first and the second sensing signals. | 11-17-2011 |
20110278434 | Photoelectric feedback sensing system - The present invention relates to a photoelectrical feedback sensing system. A first light signal passes through the sensing apparatus. A second light signal corresponding to a characteristic of a sample within the sensing apparatus is outputted from the sensing apparatus. The first photo detector receives the first light signal and outputs a first electric signal corresponding to the intensity of the first light signal. The second photo detector outputs a second electric signal corresponding to the intensity of the second light signal. A driving signal is generated by the micro-processor to drive the light-emitting unit. The micro-processor receives the second electric signal and converts the second electric signal into a digital signal. The feedback circuit modulates the driving signal for maintaining the optical stability of the first light signal so that the sensing system is less affected by environmental temperature fluctuation and noise interferences. | 11-17-2011 |
20110303820 | Methods And Systems For Optimizing The Alignment Of Optical Packages - A method for optimizing the alignment of an optical package includes directing a beam spot of a laser along a folded optical path and onto a waveguide portion of a wavelength conversion. The output intensity of the wavelength conversion device is measured as a position of an adjustable optical component is adjusted about a first scanning axis and a second scanning axis thereby traversing the beam spot along a first and second scan lines on the waveguide portion of the wavelength conversion device. The change in the output intensity of the wavelength conversion device is then determined based on the adjusted position of the adjustable optical component. The adjustable optical component is then positioned on the first scanning axis and the second scanning axis based on the determined changes in the output intensity of the wavelength conversion device such that the output intensity of the wavelength conversion device is maximized. | 12-15-2011 |
20120056072 | WHISPERING-GALLERY-MODE-BASED SEISMOMETER - A whispering-gallery-mode-based seismometer provides for receiving laser light into an optical fiber, operatively coupling the laser light from the optical fiber into a whispering-gallery-mode-based optical resonator, operatively coupling a spring of a spring-mass assembly to a housing structure; and locating the whispering-gallery-mode-based optical resonator between the spring-mass assembly and the housing structure so as to provide for compressing the whispering-gallery-mode-based optical resonator between the spring-mass assembly and the housing structure responsive to a dynamic compression force from the spring-mass assembly responsive to a motion of the housing structure relative to an inertial frame of reference. | 03-08-2012 |
20120097833 | LASER SCANNING DEVICE - A laser scanning device includes a laser output unit, a scanner, a light splitting unit, an imaging compensation unit, a detection unit, and a control unit. A scanning focusing unit included in the scanner focuses a laser beam emitted by the laser output unit to scan an object. A visible light beam received by the canning focusing unit is reflected by the light splitting unit and is incident into the imaging compensation unit. Next, the detection unit receives the visible light beam passing through the imaging compensation unit, and outputs a detection signal. The control unit adjusts the detection signal according to the wavelength of the visible light beam, the wavelength of the laser beam, the scanning focusing unit, and the imaging compensation unit. Therefore, the laser scanning device may compensate the aberration and the dispersion caused when the visible light beam passes through the scanning focusing unit. | 04-26-2012 |
20120097834 | LASER SCANNING DEVICE - A laser scanning device includes a laser output unit, a scanner, a light splitting unit, an imaging compensation unit, a detection unit, and a control unit. A scanning focusing unit included in the scanner focuses a laser beam emitted by the laser output unit to scan an object. A visible light beam received by the canning focusing unit is reflected by the light splitting unit and is incident into the imaging compensation unit. Next, the detection unit receives the visible light beam passing through the imaging compensation unit, and outputs a detection signal. The control unit adjusts the detection signal according to the wavelength of the visible light beam, the wavelength of the laser beam, the scanning focusing unit, and the imaging compensation unit. Therefore, the laser scanning device may compensate the aberration and the dispersion caused when the visible light beam passes through the scanning focusing unit. | 04-26-2012 |
20120168604 | QUANTUM INTERFERENCE DEVICE, ATOMIC OSCILLATOR, AND MAGNETIC SENSOR - A quantum interference device includes: gaseous alkali metal atoms; and a light source for causing a resonant light pair having different frequencies that keep a frequency difference equivalent to an energy difference between two ground states of the alkali metal atoms, the quantum interference device causing the alkali metal atoms and the resonant light pair to interact each other to cause an electromagnetically induced transparency phenomenon (EIT), wherein there are a plurality of the resonant light pairs, and center frequencies of the respective resonant light pairs are different from one another. | 07-05-2012 |
20120175494 | OCCUPANCY SENSOR AND CONTROLLABLE PHOTOSENSOR - An occupancy sensor is provided with a separable override unit to selectively override the operation of the occupancy sensor at designated times and for selected time intervals. The occupancy sensor includes a light sensor for actuating the occupancy sensor and a light assembly when the ambient light is below a predetermined level and to deactivate the occupancy sensor when the ambient light is above a threshold level. The override unit having a light source is removably attached to the occupancy sensor. The override unit is coupled to the occupancy sensor to emit light to actuate the light sensor of the occupancy sensor, thereby preventing the occupancy sensor from being actuated regardless of the light level in the surrounding areas. A control unit is operatively connected to one or more override units for selectively controlling the normal operation of the occupancy sensor. | 07-12-2012 |
20120199722 | OPTICAL TRANSCEIVER AND FIBER-OPTIC GYRO - An optical transceiver comprises a substrate having a temperature control device, a light source, a light-guiding fiber, a detector, optics for collimating the light from the light source, coupling optics for focusing the light beam into the light-guiding fiber, and a beamsplitter which sends one part of the collimated light beam into a wavelength stabilization unit and another part of the collimated light beam into the coupling optics. A wavelength stabilization unit detects and compensates for wavelength drift of the light source. The optical transceiver has a superluminescent diode for its light source and may, for example, be integrated in a fiber-optic gyro. | 08-09-2012 |
20120261547 | Photon Detector with a Paralyzable Photon-Sensitive Element, in particular SPAD, and Distance Measuring Device Comprising said type of Photon Detector - A photon detector is disclosed that includes, in addition to an immobilisable photon-sensitive element, a photon transmission element. The photon detector is configured such that it can vary photon intensities impacting upon the photon-sensitive element and transmitted by the photon transmission element, for example, by modifying an absorption property or a defocussing property of the photon transmission element. Also, the immobile photon-sensitive element, which can be, for example a SPAD (Single Photon Avalanche Diode), always operates close to the optimal operating range and below an immobilisation range. A distancing device that includes this type of photo detector is also disclosed. | 10-18-2012 |
20120267509 | QUANTUM INTERFERENCE DEVICE, ATOMIC OSCILLATOR, AND MAGNETIC SENSOR - A quantum interference device includes: gaseous alkali metal atoms; and a light source for causing a resonant light pair having different frequencies that keep a frequency difference equivalent to an energy difference between two ground states of the alkali metal atoms, the quantum interference device causing the alkali metal atoms and the resonant light pair to interact each other to cause an electromagnetically induced transparency phenomenon (EIT), wherein there are a plurality of the resonant light pairs, and center frequencies of the respective resonant light pairs are different from one another. | 10-25-2012 |
20120273650 | SYSTEM FOR REGULATING THE BRIGHTNESS IN AN AEROPLANE - The invention relates to a system for regulating an adjustable brightness level in a cabin of an aeroplane, having a control device, which is designed to regulate a preset brightness value and has at least the following components: | 11-01-2012 |
20120298838 | SYSTEMS AND METHODS FOR IMPLEMENTING AN INTERACTION BETWEEN A LASER SHAPED AS LINE BEAM AND A FILM DEPOSITED ON A SUBSTRATE - A laser crystallization apparatus and method are disclosed for selectively melting a film such as amorphous silicon that is deposited on a substrate. The apparatus may comprise an optical system for producing stretched laser pulses for use in melting the film. In still another aspect of an embodiment of the present invention, a system and method are provided for stretching a laser pulse. In another aspect, a system is provided for maintaining a divergence of a pulsed laser beam (stretched or non-stretched) at a location along a beam path within a predetermined range. In another aspect, a system may be provided for maintaining the energy density at a film within a predetermined range during an interaction of the film with a shaped line beam. | 11-29-2012 |
20120312956 | LIGHT SENSOR SYSTEM FOR OBJECT DETECTION AND GESTURE RECOGNITION, AND OBJECT DETECTION METHOD - A light sensor system includes at least one light emitter, a light sensor unit and a processing unit. The light sensor unit is arranged to receive reflected light from an object in accordance with a time sequence in which the at least one light emitter is activated, and accordingly output a plurality of reflected signals. The processing unit is arranged to receive the reflected signals, identify a signal function of time by referring to occurrence sequence of local peak levels of the reflected signals, and determine motion of the object according to the signal function of time. Another light sensor system is proposed. The major difference between the two light sensor systems is that the processing unit of the another light sensor system is arranged to identify the signal function of time by comparing a predetermined threshold with signal levels of the reflected signals. | 12-13-2012 |
20120326005 | Detection System for Birefringence Measurement - A system for controlling a light beam in an optical setup includes a light source that directs a collimated light beam along a path, through a sample, and toward the active area of a stationary detector. A lens is selectively movable into the path of the light beam for spreading the beam in instances where the path of the beam is altered by the sample between the source and the stationary detector. The detector, therefore, is held stationary. Adjustment mechanisms are provided for increasing the intensity characteristic of the light that reaches the detector to account for a decrease in intensity that occurs when the lens is in the path of the light beam to spread the beam. | 12-27-2012 |
20130015319 | OPTICAL DEVICE, LASER APPARATUS INCLUDING THE OPTICAL DEVICE, AND EXTREME ULTRAVIOLET LIGHT GENERATION SYSTEM INCLUDING THE LASER APPARATUSAANM Moriya; MasatoAACI Oyama-shiAACO JPAAGP Moriya; Masato Oyama-shi JPAANM Wakabayashi; OsamauAACI Hiratsuka-shiAACO JPAAGP Wakabayashi; Osamau Hiratsuka-shi JP - An optical device may include a mirror for respectively reflecting and transmitting parts of a first laser beam as first reflected and first transmitted beams, and for respectively transmitting and reflecting parts of a second laser beam as second transmitted and second reflected beams; an optical system disposed so that the first and second laser beams are such that beam paths of the first transmitted and second reflected beams are parallel or substantially coincide, or such that beam paths of the first reflected and second transmitted beams are parallel or substantially coincide; first and second measuring units configured to respectively measure a beam parameter of the first transmitted or first reflected beams, and of the second reflected or second transmitted beams; and first and second adjusting units configured to adjust the first and second laser beams based on measurement results by the measuring units. | 01-17-2013 |
20130037692 | OPTICAL SEMICONDUCTOR DEVICE - An optical semiconductor device includes a waveguide that an input light to be inputted, a ring modulator optically coupled with the waveguide, a first ring resonator optically coupled with the waveguide and having an optical path length smaller than an optical path length of the ring modulator, a second ring resonator optically coupled with the first waveguide and having an optical path length larger than the optical path length of the ring modulator, a heater arranged adjacent to the ring modulator, the first ring resonator and the second ring resonator, a first photodetector monitoring a light power in the first ring resonator, a second photodetector monitoring a light power in the second ring resonator, and a controller controlling the heater so that a resonance wavelength of the ring modulator agrees with a wavelength of the input light, based on signals detected by the first and second photodetectors. | 02-14-2013 |
20130062500 | IMAGE SENSOR APPARATUS USING SHADED PHOTODETECTOR FOR TIME OF FLIGHT DETERMINATION - A unit pixel for an image sensor includes an accumulation circuit configured to generate an accumulated dark current by accumulating a charge corresponding to a dark current during a time of flight (TOF), the accumulation circuit being optically shaded to generate the dark current, an output voltage generation circuit configured to generate and output an output voltage corresponding to the TOF based on a charge corresponding to the accumulated dark current, a control circuit configured to control an operation of the output voltage generation circuit based on a light signal that is input to the unit pixel after being reflected by an object, the light signal being emitted by a light source, and an initialization circuit configured to initialize the accumulation circuit at a predetermined cycle. | 03-14-2013 |
20130082161 | EXTERNAL CONTROL STAND FOR A CONSTRUCTION MACHINE - An external control stand for a self-propelled construction machine. The construction machine has a working component that can be operated from the external control stand. The invention includes a lighting device for illuminating a ground section on the external control stand, as seen in the direction of travel, in front of, behind and/or below the external control stand. | 04-04-2013 |
20130119232 | SYSTEM AND METHOD FOR GENERATING EXTREME ULTRAVIOLET LIGHT - A system for generating extreme ultraviolet light may include a chamber, a target supply device configured to supply a target material into the chamber, a laser apparatus configured to output a laser beam to irradiate the target material, a wavefront adjuster configured to adjust a wavefront of the laser beam, an imaging optical system configured to focus the laser beam reflected by the target material, an image detector configured to capture an image of the laser beam focused by the imaging optical system, and a controller configured to control the wavefront adjuster based on the captured image. | 05-16-2013 |
20130134293 | OPTICAL EXAMINATIONS WITH CONTROLLED INPUT LIGHT - The invention relates to a sensor device ( | 05-30-2013 |
20130140429 | BEAM COMBINING AND DEFLECTING DEVICE - The invention relates to a beam combining device comprising a plurality of separate input beam paths ( | 06-06-2013 |
20130161482 | SYSTEM AND METHOD FOR CONTROLLING LASER LIGHTS IN AN ELECTRONIC DEVICE - In a method for controlling laser lights in an electronic device, a laser light function of the electronic device is enabled by switching on a first switch. The method samples predetermined pixels from a background color of a current slide displayed on a display screen at each predetermined time interval, and obtains RGB values of the predetermined pixels. A first average of R values and a second average of G values of the predetermined pixels are calculated. If the first average is greater than a predetermined color threshold value, the second laser light is enabled to emit laser with a second color. If the first average is less than or equal to the predetermined color threshold value and the second average is greater than the predetermined color threshold value, the first laser light is enabled to emit the laser with a first color. | 06-27-2013 |
20130161483 | OPTICAL CONTROL SENSOR SYSTEM - A optical control sensor system includes a driver controlling an operation of a light source coupled to an end of an optical fiber, an orthogonal signal generator, generating a set of different orthogonal signals controlling the driver, a terminal sensor coupled to another end of the optical fiber selecting a predetermined set of input orthogonal signals for converting them into component combinations, constituting output signals, and directing the output signals back to the optical fiber, a device coupled to the light sources and to the first end of the optical fiber for extracting output signals that have passed through a return path in the optical fiber, a detector converting optical output signals into electrical signals, and a selector and a decoder connected to the orthogonal signal generator indicating a current state of the optical control sensor system based on an analysis of the selected combinations of components in the output signals. | 06-27-2013 |
20130168531 | Optocoupler with Multiple Photodetectors and Improved Feedback Control of LED - Various embodiments of methods and devices are provided for an optocoupler comprising a layer of dielectric optically semi-reflective and transmissive material disposed between an LED and a first photodetector located above an upper surface of the layer, and a second photodetector located beneath the lower surface of the layer. The layer reflects a first portion of light generated by the LED towards the first photodetector to generate LED feedback control signals, and transmits a second portion of light generated by the LED through the layer for detection by the second photodetector to generate isolated output signals. | 07-04-2013 |
20130181109 | OPTICAL SCANNING PROJECTION MODULE - An optical scanning projection module includes a scanning light component including a plurality of sub light sources and at least one light-splitting element, a main light reflective element, a scanning element and a photosensitive element. Sub light beams of the sub light sources are converged to form a main light beam. One of the sub light beams travels to the light-delivering element to form a partial reflective light beam and a partial penetrating light beam. With a scanning manner, the partial reflective light beam or the partial penetrating light beam is reflected by the scanning element to be an inspection light, and the main light beam is reflected by the scanning element to be a projection light. The photosensitive element outputs a sensing signal according to the inspection light. Thus, the optical scanning projection module controls the operation of the scanning light component according to the sensing signal. | 07-18-2013 |
20130256504 | PHOTON SOURCE - An optical device comprising a quantum dot provided in a resonant confinement structure, an output from said confinement structure and a pulsed excitation source for said quantum dot, wherein the quantum dot is configured to allow the emission of photons having a first energy in response to a pulse from said excitation source, said resonant confinement structure providing optical confinement, the first energy being different to the resonant energy of the resonant confinement structure, the optical device further comprising a timing unit, said timing unit being configured to select photons which have been emitted from the quantum dot due to excitation by a pulse, the timing unit selecting photons emitted after the duration of the pulse which caused the emission of the photons. | 10-03-2013 |
20140021329 | METHOD AND APPARATUS FOR BEAM STEERING - Aspects of the disclosure provide an apparatus. The apparatus includes a mirror module having a plurality of individually controllable mirror segments to reflect an incident beam having a variable incidence angle, and a controller configured to determine deflection profiles of the individually controllable mirror segments, and provide control signals to the individually-controllable mirror segments to adjust the deflection profiles, such that the individually controllable mirror segments collectively reflect the incident beam in a predetermined direction. | 01-23-2014 |
20140091198 | LASER OUTPUT MEASUREMENT MECHANISM - A laser output measurement mechanism includes a light splitter that is disposed in a state rotated by a predetermined angle about an optical axis of laser light incident thereon, and that reflects a part of the laser light according to a Fresnel reflectivity that depends on a polarization direction and an incident angle of the laser light at a reflection surface thereof, and a light detector that measures an intensity of the laser light reflected by the light splitter. | 04-03-2014 |
20140103188 | POSITION SENSITIVE DETECTION OPTIMIZATION - An automatically adjustable method for use in opto-acoustic metrology or other types of metrology operations is described. The method includes modifying the operation of a metrology system that uses a PSD style sensor arrangement. The method may be used to quickly adjust the operation of a metrology system to ensure that the data obtained therefrom are of the desired quality. Further, the method is useful in searching for and optimizing data that is or can be correlated to substrate or sample features or characteristics that of interest. Apparatus and computer readable media are also described. | 04-17-2014 |
20140117200 | OPTICAL COMMUNICATION RECEPTION SYSTEM - A system configured to maintain a consistent local-oscillator-power-to-primary-signal-power ratio (LO/SIG ratio). The system may be configured to: receive the voltages for a plurality of optical signal components split from a combined SIG and LO signal; determine individual factors for the plurality of optical signal components; average the individual factors; determine whether the averaged output is less than an existing minimum reference value for a variable optical attenuator; determine whether the averaged output is greater than an existing maximum reference value for the variable optical attenuator; change the existing minimum reference value to a new value associated with the averaged output, due to determining that the averaged output is less than the existing minimum reference value; change the existing maximum reference value to a new value associated with the averaged output, due to determining that the averaged output is greater than the existing maximum reference value; and change a new value associated with the averaged output to be transmitted to the variable optical attenuator. | 05-01-2014 |
20140138517 | CONFOCAL SCANNING MICROSCOPE, OPERATING METHOD FOR SAME AND METHOD FOR MANIPULATING A SAMPLE - A switch which reduces the voltage between the photocathode and the first dynode in the activated switching state compared to the deactivated switching state and a control unit which is adapted to move a target spot, which can be illuminated by means of the light source, over a scanning field by means of a deflecting unit. The control unit activates the switch when the target spot enters a given region of the scanning field and deactivates the switch when the target spot exits the region. | 05-22-2014 |
20140191107 | METHOD AND APPARATUS FOR ADJUSTING AN APERTURE IN AN OPTICAL SYSTEM - An aperture adjusting apparatus is provided. The aperture adjusting apparatus includes: a variable part of which an aperture size varies; an optical sensor configured to sense light incident to the variable device part and light output from the variable device part; an aperture calculator configured to calculate a size of an aperture formed in the variable part from light intensity sensed by the optical sensor; and a driving controller configured to control driving of the variable device part by receiving a calculation result fed back from the aperture calculator. | 07-10-2014 |
20140191108 | ALIGNMENT SYSTEM AND EXTREME ULTRAVIOLET LIGHT GENERATION SYSTEM - An alignment system for a laser apparatus includes a guide laser device outputting a guide laser beam, an adjusting mechanism adjusting travel directions of the guide laser beam and a laser beam from the laser apparatus, a beam path combiner controlling travel directions of the laser beam and the guide laser beam to substantially coincide with each other, a first optical detection unit provided from the beam path combiner detecting the laser and guide laser beams, a first controller controlling the adjusting mechanism based on a first optical detection unit detection result, a beam steering unit downstream from the beam path combiner controlling travel directions of the laser and guide laser beams, a second optical detection unit downstream from the beam steering unit detecting the guide laser beam, and a second controller controlling the beam steering unit based on a second optical detection unit detection result. | 07-10-2014 |
20140203166 | Automatically Adjusting Light Shelf - One embodiment of a microcontroller ( | 07-24-2014 |
20140239149 | CONTROLLING LIGHT TRANSMISSION THROUGH A MEDIUM - Methods for controlling light transmission through a medium by transmitting light from a single spatial portion of an input optical field through the medium creating an output optical field, superposing the output optical field with a reference optical field creating an optical interference field, detecting an intensity of a spatial portion of a polarization component of the optical interference field and using the detected intensity to determine a value of an optical field amplitude and of an optical field phase for each of a plurality of spatial portions of the input optical field and for each of first and second orthogonal input polarization states of transmitted light entering the medium. The method may be used in the control of the transmission of light 1) through a medium, which is randomizing in amplitude, phase and/or polarization or 2) through a multi-mode fiber or for beam shaping, optical trapping and/or optical manipulation. | 08-28-2014 |
20140319318 | METHOD AND SYSTEM FOR ADJUSTING LIGHT OUTPUT FROM A LIGHT SOURCE - A system having a light guide adapted to collect light from a light source, a light detector attached to the light guide, a controller electrically connected to an output of the light detector, and a driver for driving the light source detachably connected to an output of the controller. The driver includes a memory that stores a calibration value for the light source. | 10-30-2014 |
20140361145 | LASER PULSE FOCUSING - In certain embodiments, a system ( | 12-11-2014 |
20150060640 | OPTICAL RECEPTACLE AND OPTICAL MODULE PROVIDED WITH SAME - An optical receptacle includes a light dividing surface that divides light from a light-emitting element into monitor light and coupling light to be coupled with an optical transmission body using total reflection. The light dividing surface includes a first curved surface that protrudes to the side opposite to a first surface from a first virtual reference surface having a slope angle of angle α[°] in relation to the first surface on a photoelectric conversion device side of an optical receptacle main body and a second curved surface that is connected to the first curved surface and protrudes to the side opposite to the first surface from a second virtual reference surface having a slope angle of angle β[°] in relation to the first surface, in which α and β satisfy α>β>critical angle. | 03-05-2015 |
20150295383 | METHOD AND DEVICE FOR FILAMENT-BASED WHITE LIGHT GENERATION - A method of generating white light pulses ( | 10-15-2015 |
20150301182 | OPTICAL OBJECT-DETECTION DEVICE HAVING A MEMS AND MOTOR VEHICLE HAVING SUCH A DETECTION DEVICE - An optical object sensing device for a motor vehicle, having an emitter unit for emitting an emission light beam and having a receiver unit for receiving a reception light beam, and having an electronic evaluation device for detecting an object external to the vehicle in a vicinity of the motor vehicle as a function of the reception light beam. The emitter unit includes an emitter for generating the emission light beam, a controllable micromirror by which the emission light beam can be panned at least in a first panning direction, and an emission lens arranged behind the micromirror in the emission beam path, where at least along the first panning direction, the emission lens is configured as a concave-convex lens with a concavely curved surface, which faces towards the micromirror, and with a convexly curved surface. | 10-22-2015 |
20150323777 | MODULAR NIGHT VISION SYSTEM - A modular mounting system for a night vision device includes one or more night vision monoculars, each night vision monocular having an imaging tube, a housing, and a first mounting shoe at a first position on the housing. A power supply has a first fastener thereon. A helmet mount at a first location on a helmet has a second fastener thereon. A power supply interface is located at a second location on the helmet and a second mounting shoe is provided on the power supply interface. The first mounting shoe is interchangeably and removably attachable to the first fastener and the second fastener, and, the first fastener interchangeably and removably attachable to the first mounting shoe and the second mounting shoe. In a further aspect, a firearm rail interface is provided to allow the night vision monocular to alternatively be positioned on a firearm accessory rail. | 11-12-2015 |
20150343104 | RADIATED ENERGY STERILIZATION DEVICE AND ASSOCIATED METHOD - A sterilization device comprising an ultraviolet (UV) electromagnetic radiation (EMR) emitting device, a detector configured to detect occupancy of a room associated with the sterilization device, and a controller operably connected to each of the UV EMR emitting device and the detector. The detector is configured to send a signal indicating occupancy to the controller upon a detection of occupancy. The controller is configured to operate the UV EMR emitting device to emit UV EMR only upon receiving a signal indicating no occupancy. | 12-03-2015 |
20150378013 | OPTICAL PROXIMITY SENSORS WITH RECONFIGURABLE PHOTODIODE ARRAY - Optical proximity sensors, methods for use therewith, and systems including optical proximity sensor are described herein. Such an optical proximity sensor includes a light source and a light detector, wherein the light detector includes a plurality of individually selectable photodiodes (PDs). During a calibration mode, individual PDs of the plurality of PDs of the light detector are tested to identify which PDs are crosstalk dominated. During an operation mode, the PDs of the light detector that were not identified as being crosstalk dominated are used to produce a light detection value or signal that is useful for detecting the presence, proximity and/or motion of an object within the sense region of the optical proximity sensor. By not using the PDs that were identified as being crosstalk dominated, the signal-to-noise ratio of the light detection value or signal is improved compared to if the crosstalk dominated PDs were also used. | 12-31-2015 |
20160011302 | LASER TRANSPONDER SYSTEM AND METHOD FOR DISRUPTING ADVANCED SPEED MEASURING LIDARS | 01-14-2016 |
20160021319 | SEMICONDUCTOR DEVICE, IMAGING DEVICE, AND ELECTRONIC DEVICE - A novel semiconductor device, a semiconductor device where influence of noise is lessened, or a semiconductor device with high reliability is provided. A first circuit has a function of generating an optical data signal in accordance with the amount of irradiation light and a function of generating a reset signal corresponding to a reset state of the first circuit. A second circuit has a function of controlling output of the optical data signal and the reset signal from the first circuit to a fourth circuit. A third circuit has a function of controlling generation of the reset signal to be output from the first circuit to the fourth circuit. The fourth circuit has a function of calculating the difference between the optical data signal input from the first circuit and the reset signal input from the first circuit after input of the optical data signal. | 01-21-2016 |
20160041301 | MULTI-OPTICAL AXIS PHOTOELECTRIC SENSOR - For a manufacturing machine that moves in and out of a detection area of a multi-optical axis photoelectric sensor, floating blanking and blanking monitoring are activated without outputting a stop signal to stop the manufacturing machine every when the manufacturing machine moves out of the detection area. A detection processing unit performs, when at least one of the plurality of optical axes is constantly interrupted by the object, floating blanking of outputting the detection signal upon determining that the number of optical axes in an interrupted state is greater than a preset maximum optical axis number, and blanking monitoring of outputting the detection signal upon determining that the number of optical axes in an interrupted state is smaller than a preset minimum optical axis number, and activates or deactivates the floating blanking and the blanking monitoring based on the signals received by the signal reception unit. | 02-11-2016 |
20160084615 | TARGET MARKING SYSTEM - A method of controlling a target marking system includes emitting a beam with a beam source associated with a target marker. The method also includes sensing movement of the target marker, and modifying operation of the beam source based on the sensed movement. Such modification changes a characteristic of the emitted beam. | 03-24-2016 |
20160087628 | Device and Method for Micro-Electro-Mechanical-System Photonic Switch - In one embodiment, a method includes reflecting, by a first mirror of a first mirror array of a micro-electro-mechanical system (MEMS) photonic switch, an optical control beam to produce an optical control beam spot on a second mirror array of the MEMS photonic switch and cyclic dithering of the first mirror to effective enlargement of a size of the optical control beam spot. The method also includes detecting, by a first photodiode having a first location on the second mirror array, a first intensity of the optical control beam spot. | 03-24-2016 |
20160098922 | APPARATUS FOR TRANSMITTING AND RECEIVING LIGHT SIGNAL USING OPTICAL WAVEGUIDE - An apparatus for transmitting and receiving light signals including an optical waveguide having one end and another end, a sensor unit including an infrared sensor for detecting an infrared signal and outputting a corresponding electrical signal, an ambient light sensor for detecting ambient light and outputting a corresponding electrical signal, and a light-emitting device, a lighttight housing for blocking out external light and in which the other end and the sensor unit are installed, and a controller for receiving an electrical signal output from at least one of the infrared sensor and the ambient light sensor and controlling the light-emitting device. | 04-07-2016 |
20160109561 | MODULATION OF INPUT TO GEIGER MODE AVALANCHE PHOTODIODE LIDAR USING DIGITAL MICROMIRROR DEVICES | 04-21-2016 |
20160124283 | CONTROLLING TRANSITIONS IN OPTICALLY SWITCHABLE DEVICES - This disclosure provides systems, methods, and apparatus for controlling transitions in an optically switchable device. In one aspect, a controller for a tintable window may include a processor, an input for receiving output signals from sensors, and instructions for causing the processor to determine a level of tint of the tintable window, and an output for controlling the level of tint in the tintable window. The instructions may include a relationship between the received output signals and the level of tint, with the relationship employing output signals from an exterior photosensor, an interior photosensor, an occupancy sensor, an exterior temperature sensor, and a transmissivity sensor. In some instances, the controller may receive output signals over a network and/or be interfaced with a network, and in some instances, the controller may be a standalone controller that is not interfaced with a network. | 05-05-2016 |
20160159206 | ANTI-GLARE APPARATUS - A light source detector detects, from a vehicle, a light source that exists outside the vehicle. A light reactive sheet is arranged in a planar form and is located in front of the driver driving the vehicle. The light reactive sheet changes color in response to light having a specific frequency. A light source position calculating unit calculates a light source position on the surface of the light reactive sheet based on output of the light source detector. A light emitter emits light having the specific frequency from the inside of the vehicle to the light reactive sheet based on the calculated light source position. | 06-09-2016 |
20160161750 | CALIBRATABLE BEAM SHAPING SYSTEM AND METHOD - A beam shaping system including: a first and second optical modules that are accommodated in a spaced-apart relationship in an optical path of light through the system to sequentially apply beam shaping to light incident thereon. The beam shaping system includes first and second alignment modules respectively carrying the first and second optical modules and operable for laterally positioning the optical modules with respect to the optical path. A calibration module of the beam shaping system is connectable to the first and second alignment modules and is operable to sequentially calibrate and align the respective lateral positions of the first and second optical modules with respect to the optical path. The system thereby enables shaping of an incoming light beam of given predetermined wave-front and lateral intensity distribution to form an output light beam having desired wave-front and desired lateral intensity distribution. | 06-09-2016 |
20160170084 | Laser Alignment and Calibration System for Scanning Lasers | 06-16-2016 |
20160178887 | Window Opacity Attenuation Using Microfluidic Channels | 06-23-2016 |
20160184924 | Method and Device for Local Stabilization of a Radiation Spot on a Remote Target Object - A method for local stabilization of a radiation spot on a remote target object, where the radiation spot is formed by a high energy laser beam that is aimed at the target object by a high energy radiation emitter, the includes illuminating the target object is illuminated by an illumination beam that is aimed at the target object by an illumination device. The method also includes receiving, by an image acquisition device, radiation reflected by the target object that is illuminated by the illumination beam, where the radiation reflected by the target object to the image acquisition device passes through the same optical path as the high energy laser beam. An image processing is performed by analyzing and comparing an image of the illuminated target object or part of the illuminated target object acquired by the image acquisition device to at least one image of the illuminated target object or part of the illuminated target object produced at a prior point in time or to an image stored in an object database. And a correction signal is determined, based on the comparison, with which an optical correction device arranged in the optical path passed through by both the high energy laser beam and the reflected radiation is actuated. | 06-30-2016 |
20160190195 | OPTICAL NAVIGATION MODULE CAPABLE OF PERFORMING LATERAL DETECTION AND ADJUSTING TRACKING DISTANCE - There is provided an optical navigation module including an optical package and a light reflective element. The optical package includes an image sensor which has a sensor surface. The light reflective element is configured to reflect light propagating parallel to the sensor surface to light propagating perpendicular to the sensor surface to impinge on the sensor surface thereby performing the lateral detection. | 06-30-2016 |
20160202182 | ADJUSTMENT OF MEASUREMENT SYSTEM COMPONENTS | 07-14-2016 |
20160204567 | ALIGNMENT SYSTEM AND EXTREME ULTRAVIOLET LIGHT GENERATION SYSTEM | 07-14-2016 |
20160252370 | OPTICAL DISPLACEMENT SENSOR | 09-01-2016 |
20160377955 | CONTROL DEVICE, CONTROL METHOD, AND PROGRAM - [Object] To propose a new and improved control device, a control method, and a program, which are capable of controlling a light path length of a resonator to allow resonance in a mode capable of obtaining a laser light of higher strength. | 12-29-2016 |