Entries |
Document | Title | Date |
20080218838 | METHOD FOR PRODUCING A DEVICE DEFINING A VOLUME FOR RETAINING A FLUID OR A SENSITIVE MATERIAL - The present invention concerns a method of manufacturing at least one device ( | 09-11-2008 |
20080225374 | Display Device Based on Electrowetting Effect - In a reflective a display device based on layer break up or layer displacement having at least two different states, in which one of the fluids ( | 09-18-2008 |
20080231933 | OPTICAL MODULATOR - A driving circuit and Mach-Zehnder EAM optical modulator exhibiting negligible chirp that generates a PSK signal when driven by a single drive signal. Two such Mach-Zehnder EAM optical modulators and drive circuits may be configured in parallel, thereby generating DQPSK signals with only two drive signals, one for each individual Mach-Zehnder EAM modulator. | 09-25-2008 |
20080231934 | Controllably Displayable Motor Vehicle Window and Method of Advertising or Messaging with the Same - A controllably displayable motor vehicle window is ( | 09-25-2008 |
20080239448 | OPTICAL MODULATION DEVICE AND OPTICAL MODULATION METHOD - According to an aspect of an embodiment, an optical modulation device includes a Mach-Zehnder modulator and a controller. The Mach-Zehnder modulator is supplied a drive signal and a bias voltage. The Mach-Zehnder modulator modulates inputted light on the bases of the drive signal and the bias voltage. The drive signal selectively is superimposes a predetermined frequency signal. The bias voltage selectively is superimposes the predetermined frequency signal. The controller selects a superimposing target which is the drive signal or the bias voltage so as to change modulation formats. | 10-02-2008 |
20080239449 | ELECTRODE AND INTERCONNECT MATERIALS FOR MEMS DEVICES - A microelectromechanical (MEMS) device is presented which comprises a metallized semiconductor. The metallized semiconductor can be used for conductor applications because of its low resistivity, and for transistor applications because of its semiconductor properties. In addition, the metallized semiconductor can be tuned to have optical properties which allow it to be useful for optical MEMS devices. | 10-02-2008 |
20080273236 | Optical Modulator - An electroabsorption modulator comprises an absorption layer ( | 11-06-2008 |
20080278791 | Display System With Variable Diffuser - A display system comprises a display device (DD) with a display screen (DS) for displaying an image. A diffuser (DI) is arranged in front of the display device (DD). A controller (CO) controls at least a portion of the diffuser (DI) to be in a transparent state wherein the display screen (DS) is visible or in an opaque state for hiding the display screen (DS). The controller (CO) also controls an illumination system (IS) to illuminate at least the portion of the diffuser (DI) when in the opaque state. | 11-13-2008 |
20080285110 | Optical module and method of manufacturing the same - An optical module includes a first silicon substrate having a first groove at its surface, a second silicon substrate having a second groove at its surface, a Laser device formed on the first silicon substrate, an optical modulator formed on the second silicon substrate, a substrate on which the first and the second silicon substrates are mounted wherein an optical axis of the Laser device is matched up with an optical axis of the optical modulator, a first lens transforming an divergent light emitted from the first optical device into a parallel light, disposed in the first groove, and a second lens converging the parallel light to the second optical device, disposed in the first groove. | 11-20-2008 |
20080316572 | Optoelectronic device and control method - An optoelectronic device for emitting electromagnetic radiation with a controllable emission intensity comprises, at least one optoelectronic component ( | 12-25-2008 |
20090034047 | Integrated Modulating Retro-Reflector - A novel package that integrates components for a modulating retro reflector into a single package is disclosed according to various embodiments. According to some embodiments the package is configured to secure a retro reflector, a quantum well modulator and photodiode. In some embodiments, the package may include interconnects to surface mount to a circuit board. Such interconnects may be coupled with the photodiode and/or the quantum well modulator. In some embodiments, the package may be constructed of liquid crystal polymers and/or may include one or more windows. | 02-05-2009 |
20090059341 | ELECTRO-OPTICAL DEVICE AND ELECTRONIC APPARATUS - An electro-optical device includes a first sub pixel and a second sub pixel. A pixel is configured by the first sub pixel and the second sub pixel only, and the first sub pixel and the second sub pixel emit light of different colors. | 03-05-2009 |
20090067029 | Electro-optical module, power supply substrate, wiring substrate, and electronic apparatus - This invention provides an electro-optical module with reduced noise in driving voltage. The invention can include a power supply substrate that is arranged separately from the flexible substrate having a driver, so that the noise of the driving voltage supplied from the power supply substrate is reduced. | 03-12-2009 |
20090073536 | High performance chirped electrode design for large area optoelectronic devices - An electro-optic device with a doped semiconductor base and a plurality of pixels on the semiconductor base, each pixel including: a multiple quantum well formed on the semiconductor base, an oppositely doped semiconductor layer on the multiple quantum well, and a top electrode on the semiconductor layer, the top electrode shaped to produce an approximately uniform lateral resistance in the pixel. An embodiment is a large area modulator for modulating retro-reflector systems, which typically use large area surface-normal modulators with large lateral current flow. Uniform resistance to each part of the modulator decreases location dependence of frequency response. A chirped grid electrode balances semiconductor sheet resistance and metal line resistance components of the series resistance. | 03-19-2009 |
20090086302 | OPTICAL MODULATOR WITH SIDE ACCESS - An electro-optic semiconductor device (e.g., an optical modulator) having side access and beam propagation within the device is provided. Side access for the optical input and/or output facilitates disposition of electronic circuitry and/or heat sinking structures on the top and bottom surfaces of the modulator. Internal beam propagation instead of internal waveguiding advantageously simplifies optical coupling and alignment to the modulator. Interaction length within the device is preferably enhanced by passing through the device active region at a relatively shallow angle. The internally propagating beam is reflected from a reflective face parallel to the device active region. The side faces can be perpendicular or tilted with respect to the reflective face. Tilted side faces are preferably tilted to provide external beam paths parallel to the reflective face. Internal reflection from an angled side face can be employed to provide configurations having one side port and one top or bottom port. | 04-02-2009 |
20090091815 | THREE-DIMENSIONAL DISPLAY DEVICE - A three-dimensional display device including a display panel and a modulatable electrowetting grating is provided. The display panel has a plurality of pixels. The modulatable electrowetting grating is disposed on the display panel, and has a plurality of electrowetting light valves corresponding to the pixels. | 04-09-2009 |
20090103160 | APPARATUS AND METHOD OF FORMING HIGH PERFORMANCE INTEGRATED RF OPTICAL MODULE - An integrated electro-optical module apparatus includes in one embodiment an optical modulator configured to modulate an input optical signal coupled thereto; and a control circuit assembly configured to provide electrical control signals to the optical modulator to modulate the input optical signal; wherein the control circuit assembly is attached to the optical modulator in a stacked arrangement. | 04-23-2009 |
20090103161 | DISPLAY WITH INTEGRATED PHOTOVOLTAIC DEVICE - A display with a photovoltaic (PV) cells integrated as the front side and/or back side of the display is disclosed. Ambient light may reach a PV cell situated behind a display through fully or partially transmissive features within the display. Display-generated light may also reach a PV cell behind a display. A transmissive PV material situated in front of a display may collect both ambient light as well as display-generated light. | 04-23-2009 |
20090116094 | ELECTRO-OPTIC DEVICE AND ELECTRONIC APPARATUS - An electro-optic device includes first and second pixels that form first and second images, respectively. The first and second pixels are arranged alternately in a first direction. A light blocking element overlaps the pixels in plan view. The pixels are divided into pixel groups, each corresponding to every two pixels, which are one of the first pixels and one of the second pixels adjacent to each other in the first direction. The light blocking element has openings, each corresponding to one of the pixel groups and located in a region that overlaps the two pixels of the pixel group in plan view. Each first pixel has a light blocking region that partially intercepts light emitted from the first pixel. Each second pixel has a light blocking region that partially intercepts light emitted from the second pixel. The light blocking regions are positioned symmetrically to each other in plan view. | 05-07-2009 |
20090116095 | STRESS-INDUCED BANDGAP-SHIFTED SEMICONDUCTOR PHOTOELECTROLYTIC/PHOTOCATALYTIC/PHOTOVOLTAIC SURFACE AND METHOD FOR MAKING SAME - Titania is a semiconductor and photocatalyst that is also chemically inert. With its bandgap of 3.0, to activate the photocatalytic property of titania requires light of about 390 nm wavelength, which is in the ultra-violet, where sunlight is very low in intensity. A method and devices are disclosed wherein stress is induced and managed in a thin film of titania in order to shift and lower the bandgap energy into the longer wavelengths that are more abundant in sunlight. Applications of this stress-induced bandgap-shifted titania photocatalytic surface include photoelectrolysis for production of hydrogen gas from water, photovoltaics for production of electricity, and photocatalysis for detoxification and disinfection. | 05-07-2009 |
20090161192 | CURRENT MODE DISPLAY DRIVER CIRCUIT REALIZATION FEATURE - The invention comprises devices and methods for driving a MEMs pixel, and in particular, an interferometric modulator pixel. In one embodiment a device for modulating light includes a light modulator including a movable optical element positionable in two or more positions, the modulator operating interferometrically to exhibit a different predetermined optical response in each of the two or more positions, and control circuitry connected to the light modulator for controlling said interferometric modulator, where the control circuitry is controllably switchable between two circuit configurations, and where the control circuitry provides current to said light modulator when switching between the two circuit configurations to cause the movable optical element of the light modulator to move between two positions of its two or more positions. In another embodiment a method of driving an interferometric modulator pixel with a driving circuit includes providing a potential difference across the interferometric pixel, wherein the provided potential difference increases over a period of time, and changing the position of a movable reflective layer of the interferometric pixel based on the provided potential difference. | 06-25-2009 |
20090174923 | ELECTRO-OPTICAL DEVICE AND ELECTRONIC APPARATUS - An electro-optical device comprising a first substrate, a second substrate facing the first substrate, a light-emitting layer arranged between the first substrate and the second substrate which is capable of emitting light from a plurality of pixels including at least a first subpixel and a second subpixel, the first subpixel forming a first image and the second subpixel forming a second image, and a light-shielding layer arranged between the second substrate and the light-emitting layer having an opening which is capable of transmitting light emitted from a first subpixel in the light-emitting layer through the second substrate to a first range and transmitting light emitted from the second subpixel of the light-emitting layer through the second substrate to a second range. | 07-09-2009 |
20090190198 | Film filter and flat panel display having the same - The present embodiments relate to a film filter and a flat panel display having the same capable of improving visibility and bright room contrast ratio. The film filter of the present embodiments comprises: first and second electrode layers disposed to be opposed to each other; a support layer having a hole and disposed between the first electrode layer and the second electrode layer; and a blind member disposed on the hole and of which transmittance is changed depending on electric field applied from the external. | 07-30-2009 |
20090190199 | ELECTRO-OPTICAL DEVICE, ELECTRONIC APPARATUS, AND DRIVING METHOD - An electro-optical device includes a controller, a reference current source, a correction current source, a combining unit, and an electro-optical element. The controller generates a reference current control signal defining a first period during which a reference current is output, and a correction current control signal defining a second period during which a correction current is output, the second period being shorter than the first period. The reference current source generates the reference current based on the reference current control signal. The correction current source generates the correction current based on the correction current control signal. The combining unit combines the reference current and the correction current to generate a driving current. The electro-optical element emits an amount of light corresponding to the driving current. The controller generates the reference current control signal and the correction current control signal so that the second period is shorter than the first period. | 07-30-2009 |
20090219600 | SYSTEMS AND METHODS OF ACTUATING MEMS DISPLAY ELEMENTS - Apparatus and methods of actuating MEMS display elements are disclosed. The disclosed embodiments can be incorporated into other drive schemes for MEMS display elements. In one embodiment, an apparatus for controlling a MEMS display element to display a frame of video data, said MEMS display element comprising a portion of an array of MEMS display elements, includes an array controller configured to assert a potential difference on said MEMS display element during a first portion of a frame display write process to place the MEMS display element in a first display state, and to assert a potential difference on said MEMS display element during a second portion of the frame display write process to place the MEMS display element in a second display state to display the frame of the video data, where the first display state is different from the second display state. In another embodiment, an array controller asserts a large potential difference across a MEMS display element to affect charge build up and an offset voltage level. In another embodiment, an array controller asserts a series of pulses to rapidly switch the MEMS display element between states to overcome adverse conditions that may affect the operation of the MEMS display element. | 09-03-2009 |
20090296188 | Energy-Efficient Optoelectronic Smart Window - In an aspect, described herein is a dynamically controllable optoelectronic smart window which utilizes a diffraction grating for selective transmission or rejection of a specific region of the electromagnetic spectrum, for example the infrared, near-infrared and/or visible regions. Window embodiments described herein may further utilize a selectively controlled and/or patterned total internal reflection layer to assist with the selective rejection of a specific spectral region while allowing for transmission of another specific spectral region. In another aspect, the present invention provides methods for dynamically controlling the transmission or rejection of solar near-infrared and/or visible radiation. | 12-03-2009 |
20090296189 | Designing the Host of Nano-Structured Optoelectronic Devices to Improve Performance - A nanostructured optoelectronic device is provided which comprises a nanostructured material and a host material intermingled with the nanostructured material. The host material may have a higher index of refraction than the nanostructured material. The host material's index of refraction may be chosen to maximize the effective active area of the device. In an alternative embodiment, the host material comprises scattering centers or absorption/luminescence centers which absorb light and reemit the light at a different energy or both. | 12-03-2009 |
20100053721 | FLEXIBLE DISPLAY PANEL, MANUFACTURING METHOD THEREOF, ELECTRO-OPTICAL APPARATUS AND MANUFACTURING METHOD THEREOF - A first etching stop layer and an active layer are formed on an inner surface of a first glass substrate, and a second etching stop layer and a cover layer are formed on an inner surface of a second glass substrate. A display media is formed between the first glass substrate and the second glass substrate. A first passivation layer is formed on an outer surface of the second glass substrate. A first etching process is performed to expose the first etching stop layer. A first flexible substrate is formed on the exposed first etching stop layer, and a second passivation layer is formed on the first flexible substrate. The first passivation layer is removed. A second etching process is performed to expose the second etching stop layer. A second flexible substrate is formed on the exposed second etching stop layer, and the second passivation layer is removed. | 03-04-2010 |
20100060970 | ELECTRO-OPTIC SILICON MODULATOR - In a general aspect, a device includes a substrate, a light transmission formed on a top surface of the substrate, a first contact, and a second contact. The light transmission structure includes a first doped region; a second doped region doped oppositely to the first region; a lateral junction between a part of the first doped region and a part of the second doped region, the lateral junction oriented substantially perpendicular to the top surface of the substrate; and a vertical junction between a part of the first doped region and a part of the second doped region, the vertical junction oriented substantially parallel to the top surface of the substrate. The first contact is in electrical contact with the first region and the second contact is in electrical contact with the second region. | 03-11-2010 |
20100067087 | TREATMENT OF CRYSTALS FOR THE PREVENTION OF OPTICAL DAMAGE - Method for treating a nominally pure crystal having non-linear optical properties. The nominally pure crystal contain foreign atoms at a residual concentration of less than 20 ppm so as to provide specific absorption of incident light. The method includes determining, based on testing on a specifically doped reference crystal of same type as the nominally pure crystal, a threshold value. The threshold value is defined by a temperature at which a migration of ions in the nominally pure crystal to the surface of the nominally pure crystal ceases. The foreign atoms are transformed to a higher valance state by a thermally-supported oxidation process including heating the nominally pure crystal at a heating rate that increases by less than | 03-18-2010 |
20100079842 | ELECTRO-OPTIC WINDOWS - An electro-optic window is made of a material substantially transparent to infra-red radiation and is treated to have reduced RF transmission characteristics by the provision of carbon nanotubes within the window or on at least one, surface thereof. | 04-01-2010 |
20100149616 | OPTICAL MODULATION DEVICE - A semiconductor optical modulation device includes a semiconductor optical modulator, wires, an output side line, an input side line and a resistor. The semiconductor optical modulator is an electroabsorption optical modulator. One of the wires is connected between an electrode of the semiconductor optical modulator and the input side line. The other of the wires is connected between the electrode of the semiconductor optical modulator and the output side line. The resistor is connected in series with the output side line. Impedance of the output side line and impedance of the resistor are different from each other. | 06-17-2010 |
20100177371 | Organic Layers for Tunable Optical Devices - A method for manipulating light comprises receiving an incoming beam of light at a tunable optical device, the tunable optical device comprising an organic material having an optical property that can be selectively varied under the influence of an external bias. The method further comprises applying a selected external bias to the tunable optical device to change an optical property of the tunable optical device. The method also comprises controlling an optical property of a beam of light exiting the tunable optical device as a result of the selected external bias. | 07-15-2010 |
20100182671 | OPTICAL IMAGE SHUTTER - An optical image shutter is disclosed. The optical image shutter includes an optical filter having a fixed refractive index and an optical filter having a variable refractive index. The optical filter having a fixed refractive index may include two layers having different refractive indexes and stacked alternately at least once. Alternatively, the optical filter having a variable refractive index may include at least one refractive index variable layer, and two layers having different refractive indexes and stacked alternately at least once. The optical image shutter may further include a transparent electrode for applying an electric field to the at least one refractive index variable layer. | 07-22-2010 |
20100188725 | High Performance Chirped Electrode Design for Large Area Optoelectronic Devices - An electro-optic device with a doped semiconductor base and a plurality of pixels on the semiconductor base. Pixels include oppositely doped semiconductor layer and a top electrode formed on the oppositely doped semiconductor layer. The top electrode has a grid pattern with at least one busbar and a plurality of fingers extending from the busbar, and spacing between the fingers decreases with distance from the bondpad along the busbar. Each pixel can also include a multiple quantum well formed on the semiconductor base. The top electrode shape produces an approximately uniform lateral resistance in the pixel. An embodiment is a large area modulator for modulating retro-reflector systems, which typically use large area surface-normal modulators with large lateral current flow. Uniform resistance to each part of the modulator decreases location dependence of frequency response. A chirped grid electrode balances semiconductor sheet resistance and metal line resistance components of the series resistance. | 07-29-2010 |
20100195184 | DISPLAY APPARATUS, METHOD AND LIGHT SOURCE - In accordance with the invention, a display apparatus comprising a light source is provided, said light source comprising at least one superluminescent light emitting diode (SLED), the apparatus further comprising at least one light modulating device arranged in a beam path of a light beam emitted by said light source and operable to emit influenced light upon incidence of said light beam, the light modulating device being operatively connected to an electronic control, the display apparatus further comprising a projection optics arranged in a beam path of said influenced light. | 08-05-2010 |
20100245970 | LIGHT CONTROL DEVICE, SEMICONDUCTOR WAFER, AND LIGHT CONTROL SYSTEM - A light control device includes: a single crystal substrate ( | 09-30-2010 |
20100328750 | HIGH-SPEED OPTICAL MODULATOR AND METHOD OF MODULATING LIGHT BY USING THE SAME - Provided are a high-speed optical modulator and a method of modulating light by using the same. The optical modulator includes first and second resonance cavities that are sequentially stacked on a transparent substrate, wherein the first and second resonance cavities each include an electric-optical layer. According to the method, first and second voltages having different sizes are simultaneously applied respectively to the first and second resonance cavities, and then for the other configuration of the modulator mutually interchanged voltages are applied. | 12-30-2010 |
20110032594 | Optical modulation device and optical modulation method - According to an aspect of an embodiment, an optical modulation device includes a Mach-Zehnder modulator and a controller. The Mach-Zehnder modulator is supplied a drive signal and a bias voltage. The Mach-Zehnder modulator modulates inputted light on the bases of the drive signal and the bias voltage. The drive signal selectively is superimposes a predetermined frequency signal. The bias voltage selectively is superimposes the predetermined frequency signal. The controller selects a superimposing target which is the drive signal or the bias voltage so as to change modulation formats. | 02-10-2011 |
20110032595 | COMPONENTS AND METHODS FOR USE IN ELECTRO-OPTIC DISPLAYS - An electro-optic display comprises, in order, a backplane comprising a plurality of pixel electrodes; a layer of a solid electro-optic medium; a main adhesive layer; and at least one of a light-transmissive protective layer and a light-transmissive electrically-conductive layer. The electro-optic layer may be in direct contact with the backplane or separated therefrom by a thin auxiliary layer of adhesive. The main adhesive layer may be colored to provide a color filter array. An inverted front plane laminate useful in forming such a display comprises the same layers except that the backplane is replaced by a release sheet. The display combines good low temperature performance and good resolution at higher temperatures. | 02-10-2011 |
20110032596 | COMPONENTS AND TESTING METHODS FOR USE IN THE PRODUCTION OF ELECTRO-OPTIC DISPLAYS - A laminate comprising a solid electro-optic medium and an electrically conductive layer is tested by passing it over a pair of electrodes at different potentials, with the electrically conductive layer lying on the opposed side of the electro-optic medium from the electrodes. An article which can be tested by this method, and which is useful in the manufacture of electro-optic displays, comprises a layer of a solid electro-optic medium and a release sheet comprising an electrically conductive layer. | 02-10-2011 |
20110096386 | LASER SCANNING MICROSCOPE HAVING A LASER DIODE COMPRISING A LIGHT MODULATION DEVICE - The invention makes it possible to adjust the light intensity of a laser scanning microscope laser beam in an economical manner and with high accuracy. A separate acousto-optic component can be omitted in that a light modulation section such as an electroabsorption modulator (EAM) or a semiconductor amplifier (SOA) is arranged directly at the laser diode, advisably at one of its front sides. It is nevertheless possible to control the light intensity economically and with high accuracy because the important parameters of the laser beam remain unchanged when the optical output power is changed by the light modulation section. The light modulation section is preferably formed integral with the laser diode in at least one material layer. | 04-28-2011 |
20110102877 | DIFFRACTIVE POLARIZING MIRROR DEVICE - A polarizing mirror device including an optical substrate ( | 05-05-2011 |
20110149365 | WAVELENGTH TUNABLE LIGHT SOURCE - A wavelength tunable light source includes: an optical gain medium generating light; a wavelength tunable filter positioned on a optical path and transmitting or reflecting only a predetermined wavelength generated from and injected into the optical gain medium; a first housing where the optical gain medium and the wavelength tunable filter are mounted; and an optical fiber block providing the optical wave having the predetermined wavelength come from the wavelength tunable filter, wherein the wavelength tunable filter comprised of a dielectric thin-film filter formed by alternately stacking a first dielectric thin film layer and a second dielectric thin film layer having different refractive index. | 06-23-2011 |
20110164301 | ELECTRO-OPTIC DISPLAYS, AND MATERIALS FOR USE THEREIN - A first electro-optic display comprises first and second substrates, and an adhesive layer and a layer of electro-optic material disposed between the first and second substrates, the adhesive layer comprising a mixture of a polymeric adhesive material and a hydroxyl containing polymer having a number average molecular weight not greater than about 5000. A second electro-optic display is similar to the first but has an adhesive layer comprising a thermally-activated cross-linking agent to reduce void growth when the display is subjected to temperature changes. A third electro-optic display, intended for writing with a stylus or similar instrument, is produced by forming a layer of an electro-optic material on an electrode; depositing a substantially solvent-free polymerizable liquid material over the electro-optic material; and polymerizing the polymerizable liquid material. | 07-07-2011 |
20110170160 | OPTICAL IMAGE SHUTTER AND METHOD OF MANUFACTURING THE SAME - An optical image shutter having a transparent electro-optical crystal formed on a transparent amorphous substrate and a method of manufacturing the optical image shutter. The light image shutter is created by forming a buffer layer using a material having a similar crystalline structure to an electro-optical crystal, on a transparent amorphous substrate such as glass, and forming an electro-optical thin film layer such as the electro-optical crystal on the buffer layer. | 07-14-2011 |
20110188108 | OPTICAL MODULE - To achieve a size-reduction of an optical module having a circuit that generates a high-frequency clock signal for controlling optical modulation by an optical modulator and to suppress radiation of electromagnetic waves from the optical module. A through-hole via is formed on a multilayer printed circuit board so as to be insulated from a plurality of grounded wiring layers by an anti-pad. A coaxial connector and an intensity modulation control IC that generates a high-frequency clock signal are provided on the multilayer printed circuit board. The high-frequency clock signal is input to the coaxial connector through a micro-strip line formed on the multilayer printed circuit board. An open stub connected to the through-hole via is provided on a wiring layer between a first wiring layer and a second wiring layer among the plurality of wiring layers. | 08-04-2011 |
20110211245 | TRANSPARENT ELECTROACTIVE SYSTEM - The invention relates to a transparent electroactive system that includes two electrodes ( | 09-01-2011 |
20110228375 | LASER ILLUMINATION MODULE WITH INTEGRATED INTENSITY MODULATOR - The present application is directed towards, among other things, systems and methods for modulating the intensity of laser light at high frequencies for use in projection systems. A laser is modulated by an electro-optical device, such as an intensity modulator, that can change its reflective or transmissive behavior at rates exceeding tens of megahertz under the application of an electric field. In some embodiments, the intensity modulator may be configured as a Fabry-Pérot interferometer or etalon, or a Gires-Tournois etalon. In many embodiments, the intensity modulator may include a transparent relaxor-ferroelectric-type material between the modulator's reflective plates. By applying a voltage to the ferroelectric material, its refractive index may be varied to dynamically change the resonance of the modulator, modulating the intensity of the light transmitted through or reflected from the modulator. The intensity modulator may be placed in various configurations to modulate the laser through transmission, reflection, or phase delay and recombination. | 09-22-2011 |
20120033283 | LASER BEAM MODULATION FOR PRINTERS USING METAMATERIALS - A modulator in an imaging apparatus includes a metamaterial shell surrounding an opaque core. The metamaterial is tunable, so that the metamaterial acts as a waveguide for light at a given wavelength. This property of the metamaterial is used to modulate the light beam in an imaging apparatus. The light beam can be guided around the opaque core under a first voltage condition, or the light beam can be blocked by the opaque core under a second voltage condition. | 02-09-2012 |
20120081772 | OPTICAL DEVICE, A METHOD OF MANUFACTURING OPTICAL DEVICE, AND EXPOSURE APPARATUS - The ferroelectric substrate | 04-05-2012 |
20120092743 | LIGHT MODULATION DEVICE - A light modulation device includes: an input terminal into which a modulation signal is input; a light modulation element including an anode connected to the input terminal and a cathode that is grounded; a matching resistor connected in parallel with the light modulation element; a matching capacitor connected to the light modulation element and connected in series to the matching resistor; and a protective resistor connected in parallel with the light modulation element, the matching resistor, and the matching capacitor. | 04-19-2012 |
20120154889 | DISPLAY ELEMENT AND ELECTRIC APPARATUS USING THE SAME - A display element ( | 06-21-2012 |
20120206787 | SOLAR ARRAY WITH MULTIPLE SUBSTRATE LAYERS PROVIDING FREQUENCY SELECTIVE SURFACES - A leaky travelling wave array of optical elements provide a solar wavelength rectenna. | 08-16-2012 |
20120218618 | THIN-FILM COATINGS, ELECTRO-OPTIC ELEMENTS AND ASSEMBLIES INCORPORATING THESE ELEMENTS - Electro-optic elements are becoming commonplace in a number of vehicular and architectural applications. Various electro-optic element configurations provide variable transmittance and or variable reflectance for windows and mirrors. The present invention relates to various thin-film coatings, electro-optic elements and assemblies incorporating these elements. | 08-30-2012 |
20120224245 | POLYMERISABLE LC MATERIAL AND POLYMER FILM WITH NEGATIVE OPTICAL DISPERSION - The invention relates to a polymerisable LC material with negative optical dispersion, a polymer film with negative optical dispersion obtainable from such a material, and the use of the polymerisable LC material and polymer film in optical, electrooptical, electronic, semiconducting or luminescent components or devices. | 09-06-2012 |
20120229881 | PIEZOCHROMIC DEVICE - The current invention relates to a piezochromic device wherein said device exhibits a reversible change in appearance initialed by an external applied force and then reverts back to its original appearance over a set relaxation time when the external force is removed. In one embodiment, a device comprising a transparent or semi-transparent cover layer and a magnetic layer, wherein between the cover layer and the magnetic layer is a liquid medium containing magnetically alignable pigments. | 09-13-2012 |
20120307337 | SWITCHABLE AUTOMOTIVE GLAZING - A window glazing ( | 12-06-2012 |
20120307338 | ELECTROACTIVE MATERIAL - An electroactive material, in the form of a self-supported layer, comprising: a matrix, which maintains the mechanical strength of the electroactive material; and an electroactive system, which is inserted in the matrix and comprises an electroactive organic compound (ea | 12-06-2012 |
20130021657 | ELECTROOPTIC DEVICE AND ELECTRONIC APPARATUS - An electrooptic device includes first and second substrates that are disposed opposing each other with an electrooptic material layer therebetween, a sealing material that bonds the first and second substrates, a pixel area, and an ion trap portion between the pixel area and the sealing material. The ion trap portion includes first and second electrodes that are formed in a comb-tooth shape and are disposed so that branch electrodes of the first electrode and branch electrodes of the second electrode are engaged with each other. A direction of the branch electrodes intersects with an orientation direction of the electrooptic material at an interface between the electrooptic material layer and the first substrate. | 01-24-2013 |
20130027762 | CIRCUIT BOARD AND OPTICAL MODULATOR - A printed circuit board (PCB) has a connection ground pattern and a wiring ground pattern. The connection ground pattern is a pattern for soldered connection formed on a first wiring layer. The wiring ground pattern is formed to be spaced from the connection ground pattern on the first wiring layer. The connection ground pattern and the wiring ground pattern are electrically coupled via a second wiring layer. When the wiring ground pattern is covered with an insulating layer, such as a solder resist, even if the position of an end of the insulating layer varies among wiring ground patterns, an influence on an exposed area of the connection ground pattern is eliminated. | 01-31-2013 |
20130077149 | SIGNAL SHAPING CIRCUIT AND LIGHT TRANSMITTING DEVICE - A signal shaping circuit includes an operational circuit that provides weights to a first signal input to a first input element and a second signal input to a second input element, adds or subtracts the second signal to or from the first signal, and outputs a signal obtained by adding or subtracting the second signal to or from the first signal; a divider that divides the signal output from the operational circuit into signals, causes one of the divided signal to be input to the second input element, and outputs the other of the divided signal; a delay element that delays the signal output from the operational circuit and to be input to the divider or the signal output from the divider and to be input to the second input element; and an adjuster that adjusts at least one of the weights provided to the first and second signals. | 03-28-2013 |
20130083387 | Process for Encapsulating an Electro-Optical Device - A process for protecting the external face of an electro-optical device, the external face comprising at least one optical film adhesively bonded to a transparent substrate and set back therefrom, comprises encapsulating the optical element between the substrate and a transparent cover that is substantially the same size as the substrate. The process comprises adhesive bonding of the cover, the adhesive bonding being achieved by depositing uncured adhesive in two steps, namely a first step that is used first to take up the step difference between the substrate and the optical element, and a second step that is used to adhesively bond the protective cover. Smaller respective thicknesses of adhesive shrink in each step and thus, in the end, the total shrinkage is limited and the quality of the product is improved. | 04-04-2013 |
20130094072 | TWO-DIMENSIONAL ELECTROCHEMICAL WRITING ASSEMBLY AND USE THEREOF - The present subject matter can include a two-dimensional electrochemical writing assembly and uses thereof. The writing assembly can enable for time-dependently displaying of a physical parameter, such as a time-dependent display or recording of the temperature. The writing assembly comprises two different types of electrochemical processors, of which one type is used for controlling the time-dependent switching of the second type of electrochemical processors used in the writing assembly. | 04-18-2013 |
20130107344 | OPTOELECTRONIC DEVICE EMPLOYING A MICROCAVITY INCLUDING A TWO-DIMENSIONAL CARBON LATTICE STRUCTURE | 05-02-2013 |
20130128331 | TRANSMITTER OPTICAL MODULE - Disclosed is a transmitter optical module which includes an electro-absorption modulated laser modulating a light into an optical signal through a high-frequency electrical signal; a first sub-mount transferring the high-frequency signal to the electro-absorption modulated laser; and a second sub-mount receiving the high-frequency signal from the electro-absorption modulated laser to terminate the electro-absorption modulated laser. A length of a first wire connecting the first sub-mount and the electro-absorption modulated laser is different from a length of a second wire connecting the second sub-mount and the electro-absorption modulated laser. | 05-23-2013 |
20130182305 | Optical device having reduced optical leakage - An optical device includes a ridge on a base. The ridge includes an active medium. An active component on the base is a light sensor and/or a light modulator. The active component is configured to guide a light signal through the active medium included in the ridge. Electrical current carriers contact the lateral sides of the ridge on opposing sides of the ridge. Each of the electrical current carriers includes a carrier material that is doped so as to increase the electrical conductivity of the carrier material. The carrier material is different from the active medium. | 07-18-2013 |
20130293942 | METHOD FOR OPTIMIZING HYPERFINE APERIODIC OPTICAL SUPERLATTICE - A method for optimizing a hyperfine aperiodic optical superlattice (HAOS) is provided. In the method, the HAOS is divided into a plurality of unit blocks with the same length, wherein the unit blocks has same spatial distribution of domain orientation, and the HAOS with an original conversion efficiency. The spatial distribution of domain orientation of one of the unit blocks is inverted. An achieved conversion efficiency of the HAOS with the inverted spatial distribution of domain orientation is calculated. The achieved conversion efficiency is compared with a target conversion efficiency. The HAOS with the achieved conversion efficiency which is closest to the target conversion efficiency as an optimized HAOS. | 11-07-2013 |
20140036335 | MASSIVE ELECTROOPTICAL CELL HAVING A FINE STRUCTURE AND BASED ON MATERIALS WITH GIANT ELECTROOPTICAL COEFFICIENTS, ITS METHOD OF FABRICATION - Electrooptical cell, including, on a substrate ( | 02-06-2014 |
20140104666 | ELECTRO-OPTICAL MODULATOR INTERFACE - A relatively high-speed, high-efficiency CMOS two branch driver core that may operate under relatively low supply voltage may include thin oxide CMOS transistors configured to generate rail-to-rail output swings larger than twice a supply voltage and without exceeding safe operating area limits. Each of the two branches may include two stacked CMOS inverter pairs configured to drive a respective load capacitance coupled between respective CMOS inverter outputs, in phase opposition to the other branch. A pre-driver circuit input with a differential modulating signal may output two synchronous differential voltage drive signals of a swing of half of the supply voltage and DC-shifted by half of the supply voltage with respect to each other and that may be applied to the respective CMOS inverter inputs of the two branches. | 04-17-2014 |
20140111844 | THIN FILM EMITTER-ABSORBER APPARATUS AND METHODS - Methods and apparatus for providing a tunable absorption-emission band in a wavelength selective device are disclosed. A device for selectively absorbing incident electromagnetic radiation includes an electrically conductive surface layer including an arrangement of multiple surface elements. The surface layer is disposed at a nonzero height above a continuous electrically conductive layer. An electrically isolating intermediate layer defines a first surface that is in communication with the electrically conductive surface layer. The continuous electrically conductive backing layer is provided in communication with a second surface of the electrically isolating intermediate layer. When combined with an infrared source, the wavelength selective device emits infrared radiation in at least one narrow band determined by a resonance of the device. In some embodiments, the device includes a control feature that allows the resonance to be selectively modified. The device has broad applications including gas detection devices and infrared imaging. | 04-24-2014 |
20140126035 | ELECTRO-OPTIC DEVICE AND ELECTRONIC APPARATUS - An electro-optic device includes a first substrate, a second substrate, an electro-optic layer which is interposed between the second substrate and the first substrate, and a first translucent film, a second translucent film, and a third translucent film which are disposed between the second substrate and the electro-optic layer and are sequentially formed from the second substrate, in which the refractive index of the second translucent film is larger than the refractive index of the second substrate, is smaller than the refractive index of the first translucent film, and is smaller than the third translucent film. A transmittance of incident light of the electro-optic device is intensified using refractive index matching, interference dimming, and anti-scattering. | 05-08-2014 |
20140139900 | WAVELENGTH TUNABLE OPTICAL TRANSMITTER - A wavelength tunable optical transmitter includes a first waveguide receiving incident light through an input port and outputting the incident light to a first output port, a resonant modulator adjacent to the first waveguide and whose resonant wavelength is variable, and a second waveguide disposed optically in parallel to the first waveguide and outputting emitted light to a second output port. The resonant modulator includes a silicon resonator constituted by a crystallized silicon film in the form of a closed loop between the first and second waveguides, a first electrode within the silicon resonator and constituted by a silicon film of a first conductivity type, and a second electrode extending alongside part of the outer circumferential surface of the silicon resonator and constituted by a silicon film of a second conductivity type. | 05-22-2014 |
20140168742 | Air Stable, Color Tunable Plasmonic Structures for Ultraviolet (UV) and Visible Wavelength Applications - A plasmonic optical device is provided operating in near ultra violet (UV) and visible wavelengths of light. The optical device is made from a substrate and nanoparticles. The nanoparticles have a core with a negative real value relative permittivity of absolute value greater than 10 in a first range of wavelengths including near UV and visible wavelengths of light, and a shell with an imaginary relative permittivity of less than 5 in the first range of wavelengths. A dielectric overlies the substrate, and is embedded with the nanoparticles. If the substrate is reflective, a reflective optical filter is formed. If the substrate is transparent, the filter is transmissive. In one aspect, the dielectric is a tunable medium (e.g., liquid crystal) having an index of refraction responsive to an electric field. The tunable medium is interposed between a first electrode and a second electrode. | 06-19-2014 |
20140177025 | LIGHT-CONTROLLING DEVICE AND METHOD OF MANUFACTURING THE SAME - A light-controlling device is provided. The light-controlling device includes a first substrate, a second substrate disposed opposite the first substrate, and a partition wall separating the first and second substrates to define a cell. An optical medium containing charged particles is disposed within the cell between the first and second substrates. A plurality of first electrodes is disposed on the first substrate, and a plurality of second electrodes is disposed on the second substrate to generate electrical field within the cell to move at least some of the charged particles. Each of the first electrodes has a first width and a first thickness, and each of the second electrodes has a second width and a second thickness. Each of the second electrodes is disposed at an interval of a third width such that the open region on the second substrate between the second electrodes corresponds to the first electrode on the first substrate. | 06-26-2014 |
20140198369 | DRIVING CIRCUIT FOR LIGHT MODULATOR - A driving circuit for driving a light modulator including a matrix of pixels, the driving circuit includes, a first selecting unit configured to select a row of the matrix of pixels, each pixel having a capacitance element for modulating light; a first transistor configured to reset a voltage of the capacitance element in the selected row; a second selecting unit configured to select a column of the matrix of pixels, information being written in the capacitance element specified by the first and second selecting unit; and a second transistor, the information being written in the capacitance element through the second transistor. | 07-17-2014 |
20140233083 | DRIVER FOR ELECTRO-ABSORPTION MODULATOR - A transmitter optical module implemented with an electro-absorption (EA) modulator is disclosed. The module includes an EA driver comprising a signal detector, an offset controller, and a driver circuit. The signal detector detects the existence of the modulation signal input thereto. The offset controller provides to the driver circuit the first offset to shift the cross point of the output of the driver circuit higher when the modulation signal exists; while, the second offset when the modulation signal disappear. The second offset lowers the output of the driver circuit to prevent the excess optical output of the transmitter optical module. | 08-21-2014 |
20140307300 | ATHERMAL OPTICAL MODULATOR AND METHOD OF MANUFACTURING THE SAME - An athermal optical modulator includes a waveguide, a ring resonator configured to receive light input from the waveguide and output modulated light to the waveguide, the ring resonator including a ridge unit located at a center of the ring resonator in a vertical section, a first contact connected to one side of the ridge unit and a second contact connected to the other side of the ridge unit, the first contact and the second contact forming paths for applying electricity to the ring resonator to form an electric field in the ring resonator, and a polymer layer covering the ridge unit. | 10-16-2014 |
20140333981 | OPTO-ELECTRONIC APPARATUS WITH METALLIC STRUCTURE - An opto-electronic apparatus with a metallic structure is provided, and includes a light-permissible medium and a metallic structure. The metallic structure is disposed inside or over the light-permissible medium, and is formed from arrangement of at least one metallic unit. Each metallic unit includes at least three metallic blocks of which centers of mass define a polygon. After passing through the metallic structure, an electromagnetic wave has a distribution curve of transmittance versus wavelength, wherein the distribution curve has at least one transmittance peak value corresponding to at least one wavelength in a one-to-one manner. The area of the polygon is smaller than or equal to λ | 11-13-2014 |
20150116809 | OPTICAL MODULE - A metal stem is provided with a through-hole, a temperature control module is mounted thereon, and a metal protrusion is formed integrally therewith. A lead pin includes a through section inserted in the through-hole of the metal stem, and an inner lead section continued from one end of the through section and extending up to the tip. The temperature control module is thermally connected to a semiconductor optical modulation element that is electrically connected to the inner lead section. The protrusion faces the inner lead section. | 04-30-2015 |
20150138619 | OPTICAL MODULATOR - An optical modulator includes a single-crystal substrate, a lithium niobate film formed on a main surface of the single-crystal substrate, the lithium niobate film being an epitaxial film and having a ridge, a buffer layer formed on the ridge, a first electrode formed on the buffer layer, and a second electrode separated from the first electrode, the second electrode being in contact with the lithium niobate film. | 05-21-2015 |
20150146275 | ELECTRO-OPTIC MODULATOR DEVICE AND METHOD OF MAKING THE SAME - An electro-optic modulator including a semiconductor region, a first reflecting region over the semiconductor region and an anti-reflecting region on an opposite surface of the semiconductor region from the first reflecting layer. The semiconductor region includes a first doped region and a second doped region. | 05-28-2015 |
20150301367 | GLAZING HAVING ELECTRICALLY SWITCHABLE OPTICAL PROPERTIES - A glazing having electrically adjustable optical properties is described, including an outer pane and an optically adjustable element which is connected to the outer pane in a planar fashion via at least one thermoplastic film, wherein the thermoplastic film contains at least one luminescent material. | 10-22-2015 |
20150309386 | SYSTEM FOR CONTROLLING THE CHIRP OF AN OPTICAL SIGNAL - An apparatus for altering a chirp of an input light comprising one or more grating structures and one or more electro-optical blocks. In which a voltage is applied to the one or more electro-optical blocks to alter a chirp of light exiting the apparatus. | 10-29-2015 |
20150362762 | NANOCOMPOSITE OPTICAL-DEVICE WITH INTEGRATED CONDUCTIVE PATHS - A nanocomposite optical device comprising a cured optically transparent nanocomposite ink and a treated conductive nanocomposite-ink. The treated conductive nanocomposite-ink integrated within the nanocomposite structure. The treated nanocomposite-ink having electrical, thermal or both electric and thermal communication to the exterior of the optical device and the same communication with at least a portion of the optically transparent nanocomposite within the optical-device. | 12-17-2015 |
20150376068 | ELECTRO-OPTIC CERAMIC MATERIALS - The present invention provides a product and manufacturing method for electro-optic ceramic material having the composition (A′(1-y)A″y) | 12-31-2015 |
20160026013 | ELECTRO-OPTIC MODULATOR DEVICE, OPTICAL DEVICE AND METHOD OF MAKING AN OPTICAL DEVICE - An electro-optic modulator device includes a modulation region, a reflecting region, a conductive line and an anti-reflecting region. The modulation region includes a doped region. The reflecting region is over the modulation region. The conductive line is connected to the doped region. The conductive line extends through the reflecting region. The anti-reflecting region is on an opposite surface of the modulation region from the reflecting region. | 01-28-2016 |
20160033841 | Seal and Seal System for a Layered Device - The disclosure provides, in part a seal system for sealing a film. The disclosure further provides, in part, a sealed film comprising a first and a second substrate; a first and a second electrode disposed on the surface of at least one of the substrates; a switching material disposed between the first and second substrates; a first seal and a second seal; the first seal disposed along an edge of the switching material, separating the switching material from the second seal. | 02-04-2016 |
20160075284 | ELECTRO-OPTIC DEVICE WITH ULTRASONIC SOLDER BUS - An electro-optic assembly is provided that includes a first substantially transparent substrate comprising: a first surface, a second surface, and a first peripheral edge, the second surface comprises a first electrically conductive layer and a first isolation area. The assembly further includes a second substrate comprising: a third surface, a fourth surface, and a second peripheral edge, the third surface comprises a second electrically conductive layer. The assembly also includes a primary seal between the second and third surfaces, wherein the seal and the second and third surfaces define a substantially hermetic cavity; an electro-optic medium at least partially disposed in the cavity; and an electrically conductive solder that is disposed on at least portions of at least one of the first and second peripheral edges in electrical contact with one of the first and second electrically conductive layers. | 03-17-2016 |
20160077399 | ELECTRO-OPTIC DEVICE WITH CONDUCTIVE SEAL - An electro-optic assembly is provided that includes a first substantially transparent substrate comprising: a first surface, and a second surface. The second surface comprises a first electrically conductive layer and a first isolation area. The assembly further includes a second substrate comprising: a third surface, and a fourth surface. The third surface comprises a second electrically conductive layer. The assembly also includes a primary seal between the second and third surfaces, the seal and the second and third surfaces define a substantially hermetic cavity; and an electro-optic medium at least partially disposed in the cavity. The primary seal comprises a plurality of conductive spacers, the seal disposed in contact with portions of the first and second electrically conductive layers. A substantial portion of the plurality of conductive spacers is in substantial contact with the second and third surfaces. | 03-17-2016 |
20180026424 | Electroabsorption Modulator Integrated Distributed Feedback Laser with Integrated Semiconductor Optical Amplifier, and Driving Method for Same | 01-25-2018 |