Class / Patent application number | Description | Number of patent applications / Date published |
250225000 | Polarizing | 39 |
20090095890 | BROADBAND LIGHT SOURCE UNIT AND OPTICAL ANALYZER - The invention offers a broadband light source unit that produces using a simple system a supercontinuum lightwave having a flat spectral form and an optical analyzer using the unit. The broadband light source unit has a light source that outputs a first source lightwave, which is a pulse lightwave having periodic pulses with a constant intensity, a conversion means that receives the first source lightwave, produces a second source lightwave having pulses whose intensities are different from one another, and outputs it, and a nonlinear optical medium section that receives the second source lightwave, produces a supercontinuum lightwave having a wavelength band broadened through a nonlinear optical phenomenon, and outputs it. The optical analyzer has the foregoing broadband light source unit, a light-applying section that applies a supercontinuum lightwave outputted from the broadband light source unit to a light-receiving region of a measurement-undergoing object, and an image pickup section that receives a lightwave generated at the light-receiving region by the application of the supercontinuum lightwave and picks up an image of the measurement-undergoing object. | 04-16-2009 |
20090108185 | Optoelectronic sensor and method for detecting objects with polarized light - A method and apparatus for detecting objects has a sensor with a light source, a light receiver, and a light retroreflector between them. Light from the source is transmitted to the detector along a light transmission path from the source to the retroreflector and is reflected back to the detector along a light reflection path that substantially corresponds to the transmission path. A single lens or a pair of adjacent lenses shapes the respective light beams from both light emitted by the source and light reflected by the retroreflector in accordance with either the auto collimation principle or the double-eye principle, respectively. A polarizer and a beam splitter are arranged in the light transmission path for light from the source, and a polarization filter is arranged in the light reflection path so that light reflected by the retroreflector passes through the beam splitter and the polarization filter before it reaches the light receiver. A control unit recognizes an interruption of at least one of the light beams as the detection of an object in the light transmission and/or light reflection paths. The beam splitter is a dielectricum which has differing transmission and reflection characteristics for p-polarized light and s-polarized light. | 04-30-2009 |
20090166517 | IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS - A method for forming an image of an object includes: illuminating sequentially a surface of the object arranged in the same shooting area using each of N (N is natural number equal to or more than two) polarized light beams, each of which has different property; scanning the surface using the each of N polarized light beams; and outputting the each of N polarized light beams reflected by the surface, the each of N polarized light beams passed-through the object or the each of N polarized light beams scattered by the surface, as an image signal. | 07-02-2009 |
20090179143 | IMAGE CAPTURING DEVICE - An image capturing device includes a lens system including a plurality of regions on a pupil plane that each have different focal distances, a plurality of first polarizing elements that respectively transmit differently polarized light and respectively transmit light passing through the plurality of regions, a plurality of second polarizing elements that respectively transmit polarized light transmitted through the plurality of first polarizing elements, and a plurality of light receiving elements that respectively receive light transmitted through the plurality of second polarizing elements. | 07-16-2009 |
20090184240 | POLARISCOPIC PHASE MICROSCOPE - The present invention relates to a polariscopic phase microscope that can precisely observe a specimen, and more specifically, to a polariscopic phase microscope that can observe a structure and change of a physiological cell by using a phase contrast of light passing through components of the physiological cell. There is provided a polariscopic phase microscope according to the present invention comprising: an optical image generator that acquires images for a specimen to be observed; an object plane onto which light beams of the images acquired from the optical image generator are projected; a first transform lens that performs primary Fourier transformation on the light beams passing through the object plane; a λ/4 wavelength plate that is positioned to be spaced by a focal distance of the first transform lens from the first transform lens; a secondary transform lens that performs secondary Fourier transformation on the light beams passing through the λ/4 wavelength plate; and a phase image generator including a photo detector on which the images of the light beams subjected to the secondary Fourier transformation is focused. | 07-23-2009 |
20090206240 | OPTICAL DEVICE AND OPTICAL SYSTEM - Provided is an optical device, comprising a plurality of polarizers that are arranged along a propagation direction of incident light; a first phase element that is disposed between the plurality of polarizers and that has a phase lag axis forming a prescribed angle relative to transmission axes of the polarizers arranged along the propagation direction; and a second phase element that is disposed between the first phase element and one of the polarizers arranged along the propagation direction, and that provides the incident light with a prescribed phase difference. An angle of the phase lag axis of the second phase element is adjusted such that the optical device transmits light in a prescribed wavelength region in the incident light. | 08-20-2009 |
20090266977 | PHOTONIC PROXIMITY SENSOR AND SCALABLE PHOTONIC SENSING SYSTEM - A photonic proximity sensor and photonic sensor system are provided. The photonic proximity sensor includes a first light source, a second light source, and a magneto-optic device. The magneto-optic device receives light emitted from the first and second light sources, and is responsive to variations of a magnetic field to rotate the light from one of the sources significantly more than the light from the other light source. | 10-29-2009 |
20100032552 | OPTICAL SEMICONDUCTOR DEVICE - An optical semiconductor device includes a lower electrode layer formed over a semiconductor substrate, an infrared absorption layer formed over the lower electrode layer | 02-11-2010 |
20100038525 | System and Method for Optically Co-Registering Pixels - A system of the present disclosure has an optical element having a plurality of contiguous lenses, a detecting device having a plurality of light-sensitive pixels, the optical element having a lens in the plurality of lenses associated with each of the plurality of light-sensitive pixels, and intermediate imaging optics for receiving light indicative of an image and focusing the light onto the plurality of contiguous lenses such that the image is divided on each of the associated light-sensitive pixels. | 02-18-2010 |
20100051789 | IMAGING SYSTEM - An imaging system according to the present invention includes: a light source unit which emits illuminating light to illuminate an object; an illuminating-light transmitting unit which transmits the illuminating light; a timing adjustment unit which, being placed between the illuminating-light transmitting unit and the object, varies timing with which rays contained in the illuminating light which has passed through the illuminating-light transmitting unit reach a surface of the object; a reflected-light incidence unit upon which reflected light coming from the surface of the object is incident; a light detection unit which temporally breaks down the reflected light incident upon the reflected-light incidence unit, converts the reflected light into an electrical signal, and outputs the electrical signal in sequence; and a signal processing unit which converts the electrical signal outputted in sequence by the light detection unit into pixel information about an optical image on the surface of the object. | 03-04-2010 |
20100078546 | OPTICAL MODULE AND OPTICAL SENSOR USING THE SAME AND METHOD FOR MANUFACTURING THEREOF - Provided are an optical module, an optical sensor using the optical module, and a method of manufacturing the optical module. The optical sensor includes: a semiconductor substrate having a plurality of optical paths; an optical glass substrate formed on the semiconductor substrate; a sample stage formed on the optical glass substrate; at least one sensor metal film formed on the sample stage, and sensing light by Surface Plasmon Resonance (SPR) to reflect the light at a pre-determined angle; a light source disposed on a lower surface of the semiconductor substrate, and emitting light having a specific wavelength toward one of the optical paths; a polarizing plate disposed between the semiconductor substrate and the light source, and polarizing the light emitted from the light source into transverse-magnetic light; a diffraction grating plate disposed between the semiconductor substrate and the optical glass substrate, and diffracting the polarized light at a specific angle to be incident on the sensor metal film; and at least one light receiver disposed on the lower surface of the semiconductor substrate, and detecting the light passed through at least one of the optical paths and reflected from the sensor metal film. According to the method, it is possible to manufacture an optical device having various functions. | 04-01-2010 |
20100155581 | LASER SCANNING UNIT AND IMAGE-FORMING APPARATUS HAVING THE SAME - A laser scanning unit and an image-forming apparatus employing the laser scanning unit. The laser scanning unit includes an optical source to irradiate a light beam, a deflector to deflect the irradiated light beam to a photosensitive body, an optical imaging device on which the light beam deflected from the deflector is incident and which forms an image on the photosensitive body, and an optical reflective device to deflect the light beam transmitted through the optical imaging device toward the optical imaging device, wherein the light beam incident on the optical imaging device includes P polarized light and S polarized light, such that the proportion of P polarized light is greater than the proportion of S polarized light. | 06-24-2010 |
20100282952 | Photodiode Comprising Polarizer - A photodiode includes a photosensitive area and a polarizing grating located in front of the photosensitive area. The polarizing grating is formed by a plurality of galvanically conducting filaments. | 11-11-2010 |
20120032067 | Two dimensional encoder system and method - An encoder system and method are provided, that is designed to improve 2D encoder systems and methods in areas such as accuracy, compactness, stability, resolution, and/or light efficiency. Moreover, the system and method of this invention provides a new concept in a retroreflector that while particularly useful in applicants' system and method, is believed to have more general utility in optical imaging systems and methods. | 02-09-2012 |
20120205524 | Method And System For A Light Source Assembly Supporting Direct Coupling To An Integrated Circuit - Methods and systems for a light source assembly for coupling to a photonically enabled complementary metal-oxide semiconductor (CMOS) chip are disclosed. The light source assembly may comprise a laser, a microlens, a turning mirror, and an optical bench, and may generate an optical signal utilizing the laser, focus the optical signal utilizing the microlens, and reflect the optical signal at an angle defined by the turning mirror. The reflected optical signal may be transmitted out of the assembly to grating couplers in the photonically enabled CMOS chip. The assembly may comprise a non-reciprocal polarization rotator, comprising a latching faraday rotator. The assembly may comprise a reciprocal polarization rotator, which may comprise a half-wave plate comprising birefringent materials operably coupled to the optical bench. The turning mirror may be integrated in the optical bench and may reflect the optical signal to transmit through a lid operably coupled to the optical bench. | 08-16-2012 |
20120267517 | COMPACT MULTISPECTRAL SCANNING SYSTEM - The invention refers to a compact multispectral scanning system comprising a primary mirror ( | 10-25-2012 |
20130001407 | NONLINEAR OPTICAL SURFACE SENSING WITH A SINGLE THERMO-ELECTRIC DETECTOR - An apparatus, system, and method are disclosed for nonlinear optical surface sensing with a single thermo-electric detector. In particular, the system includes at least two signal sources that are co-aligned to propagate photons to the same location on a surface. The system also includes at least one focusing element that focuses a sequence of photons that is reflected from the location on the surface. In addition, the system includes at least one frequency selective electromagnetic detector that detects the sequence of photons that are focused from the focusing element(s). When the frequency selective electromagnetic detector senses a photon, the frequency selective electromagnetic detector emits an electrical pulse that has a voltage that is proportional to the energy level of the photon. Additionally, the system includes a processor that processes the electrical pulses, and de-multiplexes the sequence of emitted electrical pulses based on the electrical pulse voltage of the electrical pulses. | 01-03-2013 |
20130153756 | OBJECT DETECTING DEVICE AND INFORMATION ACQUIRING DEVICE - An information acquiring device is provided with a laser light source, a diffractive optical element which is disposed in such a direction as to be away from an optical axis of the laser light source, a photodetector which is disposed to face the diffractive optical element with respect to the optical axis, and an optical path separating portion which guides laser light emitted from the laser light source to the diffractive optical element, and guides the laser light reflected on the diffractive optical element to the photodetector. The diffractive optical element irradiates a target area with the laser light having a predetermined pattern. The photodetector receives a part of the laser light diffracted and reflected on the diffractive optical element. | 06-20-2013 |
20130214137 | PHOTOELECTRIC ENCODER - A photoelectric encoder includes an irradiation unit configured to apply first and second irradiation light beams having a first linear polarization direction, a scale configured to produce first and second diffraction light beams having the first linear polarization direction by diffracting the first and second irradiation light beams, respectively, the scale having a glass plate whose front surface has a grating shape, a polarizing unit configured to convert the first diffraction light beam into a third diffraction light beam having a second linear polarization direction which is perpendicular to the first linear polarization direction, to produce first and second composite light beams by combining the second diffraction light beam and the third diffraction light beam, and to convert the first composite light beam into a circularly polarized third composite light beam, and a light receiver configured to receive the second composite light beam and the third composite light beam. | 08-22-2013 |
20130221209 | METHOD OF MEASURING CHARACTERISTICS OF SPECIMEN, AND FLAT-PLATE PERIODIC STRUCTURE - The present invention provides a measuring method comprising the steps of holding a specimen on a flat-plate periodic structure, applying a linearly-polarized electromagnetic wave to the periodic structure, and measuring characteristics of the specimen based on change of the electromagnetic wave scattered forward or backward by the periodic structure, wherein the periodic structure is structured such that plural unit structures having the same shape are two-dimensionally and periodically interconnected in a direction of one reference plane, the unit structure has at least one aperture penetrating therethrough in a direction perpendicular to the reference plane, the electromagnetic wave is applied from a direction perpendicular to the reference plane, and the unit structure has a shape that is not mirror-symmetric with respect to an imaginary plane orthogonal to a polarizing direction of the electromagnetic wave. | 08-29-2013 |
20130221210 | FREQUENCY SELECTIVE ELECTROMAGNETIC DETECTOR - An apparatus, system, and method are disclosed for a frequency selective electromagnetic detector. In particular, the frequency selective electromagnetic detector includes a nanowire array constructed from a plurality of nanowires of different compositions. At least one nanoparticle-sized diameter thermoelectric junction is formed between the nanowires of different compositions. When a nanoparticle-sized diameter thermoelectric junction senses a photon, the nanoparticle-sized diameter thermoelectric junction emits an electrical pulse voltage that is proportional to an energy level of the sensed photon. In one or more embodiments, the frequency selective electromagnetic detector is a frequency selective optical detector that is used to sense photons having optical frequencies. In at least one embodiment, at least one of the nanowires in the nanowire array is manufactured from a compound material including Bismuth (Bi) and Tellurium (Te). | 08-29-2013 |
20130228674 | OPTICAL SENSOR AND IMAGE FORMING APPARATUS - An optical sensor includes an irradiation system emitting linearly polarized light of a first polarization direction toward a surface of an object from an incident direction inclined with respect to a normal to the surface; a first light detection system including a first light detector placed on a light path of light emitted from the irradiation system and specularly reflected by the object; and a second light detection system including a separation optical element placed on a light path of light diffusely reflected by the object, on a plane of incidence of the object, and extracting a linearly polarized light component of the first polarization direction included in the light diffusely reflected by the object, a second light detector receiving the linearly polarized light component of the first polarization direction extracted by the separation optical element and a third light detector receiving the light diffusely reflected by the object. | 09-05-2013 |
20130270425 | Electrically Conducting Thin Films and Methods of Making Same - The present invention relates conductive nanostructured copolymer materials, such as thin film. In particular, the nanostructured copolymer material comprises plurality of chains substantially parallel to each other, each conductive chain comprising a plurality of conductive polyacetylene polymer blocks positioned along the chain and a plurality of polar poly(vinyl alcohol) polymer blocks in between the polyacetylene polymer blocks to form a pattern of alternatively repeating polyacetylene polymer blocks and poly(vinyl alcohol) polymer blocks and a ratio of polyacetylene polymer to poly(vinyl alcohol) polymer to provide the nanostructured copolymer material with conductivity of at least 1 S/cm. In some aspects, the invention relates to photoelectric devices comprising a nanostructured copolymer material and capable to convert light to electrical current. | 10-17-2013 |
20130306845 | Transmission and reception unit and rotary encoder comprising same - The invention relates to a transmission and reception unit for the detection of an angle of rotation comprising a light transmitter ( | 11-21-2013 |
20130313416 | DISPLAY DEVICE AND OPTICAL INPUTTING DEVICE - A display device includes an upper substrate, a lower substrate disposed opposite to the upper substrate, a photosensor disposed between the upper substrate and the lower substrate, a polarizer disposed on the upper substrate, and a retarder disposed on the polarizer, where light of elliptical polarization from outside is converted by a λ/4 phase difference, and transmitted to the photosensor sequentially through the retarder and the polarizer. | 11-28-2013 |
20140001347 | ROTATOR EXTERNAL TO PHOTONIC INTEGRATED CIRCUIT | 01-02-2014 |
20140034819 | TRANSMISSION AND RECEPTION UNIT AND ROTARY ACTUATOR HAVING THE SAME - The invention relates to a transmission and reception unit for the detection of a rotary angle, having a light transmitter for the transmission of transmitted light to a dimensional scale and having a light receiver which lies on a support, the light receiver having a front side for the reception of reception light influenced by a dimensional scale disposed opposite the front side and having a rear side which is supported on a support transparent for the transmitted light. In order to provide a new assembly concept for the positioning of the light source and of the receiver and in particular to provide an arrangement which is as symmetrical as possible it is suggested that the transparent support is arranged between the light receiver and the light transmitter and that a light deflection apparatus is provided for the deflection of the transmitted light. | 02-06-2014 |
20140291496 | MODULAR OPTICS FOR SCANNING ENGINE - An optoelectronic module includes a beam transmitter, which emits at least one beam of light along a beam axis, and a receiver, which senses the light received by the module along a collection axis of the receiver, which is parallel to the beam axis within the module. Beam-combining optics direct the beam and the received light so that the beam axis is aligned with the collection axis outside the module. The beam-combining optics include multiple faces, including at least a first face configured for internal reflection and a second face comprising a beamsplitter, which is intercepted by both the beam axis and the collection axis. | 10-02-2014 |
20140306099 | OPTICAL SCALE, METHOD FOR MANUFACTURING OPTICAL SCALE, AND OPTICAL ENCODER - An optical scale, a method for manufacturing an optical scale, and an optical encoder less affected by fluctuations in the amount of detected light and with an improved resolution are provided. The optical scale includes a plurality of wires provided thereon so that the plurality of wires do not intersect each other and each of the tangential directions of the respective wires changes continuously. The optical encoder includes the optical scale, a light source, an optical sensor, and a computing unit. The optical sensor includes a first polarizing layer that splits incident light that is light source light from the light source passed through or reflected on the optical scale and being incident on the first polarizing layer to a first polarization direction, a second polarizing layer that splits the incident light to a second polarization direction, a first photoreceiver that receives first polarized light split by the first polarizing layer, and a second photoreceiver that receives second polarized light split by the second polarizing layer. | 10-16-2014 |
20140312212 | Microplate Reader With Linear Variable Filter - A microplate reader includes a pair of linear variable filters (LVFs) that together form a wavelength selector. Movement of one or both of the LVFs enables selection of the desired center wavelength and/or passband used to analyze a sample on a microplate inserted into the microplate reader. The microplate reader may also include a similar second wavelength selector. The LVFs are located on movable frames, with each frame also advantageously including least one of an aperture, a fixed optical filter, and an optical polarization filter. In some cases, different types of measurements may be taken without changing the geometry of the optical path between the wavelength selectors. The microplate reader may additionally use a LVF to form a continuously adjustable dichroic for sample analysis. | 10-23-2014 |
20140346328 | EXTENDED DEPTH OF FIELD THREE-DIMENSIONAL NANO-RESOLUTION IMAGING METHOD, OPTICAL COMPONENT, AND IMAGING SYSTEM - An extended depth of field three-dimensional nano-resolution imaging method includes: creating an optical module with a double helix point spread function and multi-stage imaging properties of a defocus optical grating; obtaining double helix image of a molecule by imaging a molecule using the optical module; determining a lateral position of the molecule according to a position of a midpoint of double helix sidelobes on the imaging plane in the double helix image; determining an axial position of the molecule according to a rotation angle of a line of centers of the double helix sidelobes on the imaging plane and the position of the midpoint of the double helix sidelobes on the imaging plane in the double helix image. The double helix point spread function and the defocus optical grating multi-stage imaging are combined to implement three-dimensional imaging to extended the depth of field and to improve the resolution. | 11-27-2014 |
20140361152 | System, Method and Apparatus For Polarization Control - A polarization control device includes a first wave plate having a first surface profile and a second wave plate having a second surface profile complimentary to the first surface profile. The optical axis of the first wave plate is orthogonal to the optical axis of the second wave plate. The first wave plate and the second wave plate are positioned to align the first surface profile with the second surface profile and maintain a constant thickness across the polarization control device. The first wave plate and the second wave plate may control polarization rotation as a continuous function of transverse position across a pupil plane of an optical system. The first wave plate and the second wave plate are separated by a sufficiently small distance so as to limit wave front distortion below a selected level. | 12-11-2014 |
20150034810 | SUPER-RESOLUTION MICROSCOPE AND MODULATION OPTICAL ELEMENT - A super-resolution microscope includes a modulation optical element ( | 02-05-2015 |
20150102210 | Electrically Conducting Thin Films and Methods of Making Same - The present invention relates conductive nanostructured copolymer materials, such as thin film. In particular, the nanostructured copolymer material comprises plurality of chains substantially parallel to each other, each conductive chain comprising a plurality of conductive polyacetylene polymer blocks positioned along the chain and a plurality of polar poly(vinyl alcohol) polymer blocks in between the polyacetylene polymer blocks to form a pattern of alternatively repeating polyacetylene polymer blocks and poly(vinyl alcohol) polymer blocks and a ratio of polyacetylene polymer to poly(vinyl alcohol) polymer to provide the nanostructured copolymer material with conductivity of at least 1 S/cm. In some aspects, the invention relates to photoelectric devices comprising a nanostructured copolymer material and capable to convert light to electrical current. | 04-16-2015 |
20150122978 | AMBIENT LIGHT SENSOR WITH INTERNAL LIGHT CANCELLATION - An electronic device includes a transparent surface, a light emitting device that emits light through the transparent surface, and a light sensor for receiving ambient light and providing an ambient light value. A retarder and a linear polarizer are placed between the transparent surface and the light emitting device. The retarder and linear polarizer may attenuate internal reflections from the transparent surface. The light sensor may have two channels and a second linear polarizer may attenuate the ambient light directed toward a second channel. A second retarder may be used with the second linear polarizer to attenuate the ambient light directed toward the second channel. A light detection circuit may use the difference between the two channels of the light sensor to provide the ambient light value. | 05-07-2015 |
20160011041 | INFORMATION-READING COMPONENT AND INFORMATION-READING DEVICE UTILIZING SAME | 01-14-2016 |
20160116655 | INTEGRATED BIREFRINGENT GRIDLESS WAVELENGTH LOCKER - A wavelength locker for use with tunable optical devices may include an etalon, a polarization beam splitter, and a first and second detector. The etalon may be positioned to receive a first beam and may include a first birefringent crystal having a first optical axis and a second birefringent crystal having a second optical axis. The first birefringent crystal may be coupled to the second birefringent crystal such that the first optical axis and the second optical axis are orthogonal to one another. | 04-28-2016 |
20160169710 | ROTATION DETECTION APPARATUS | 06-16-2016 |
20160202405 | POLARIZATION FILTER HAVING METALLIC WEBS | 07-14-2016 |