| Entries |
| Document | Title | Date |
|---|
| 20080225377 | Bi-Directional Optoelectric Conversion - An apparatus and to a method of optoelectrical conversion, comprising the steps of: providing a first electrical signal to an electrical directional element, using the electrical directional element to direct the first electrical signal to an optoelectric converter, using the optoelectric converter for converting the first electrical signal into an optical signal and providing the optical signal to a DUT, using the optoelectric converter for receiving and converting a reflected optical signal reflected by the DUT back into a second electrical signal, and using the electrical directional element to direct the second electrical signal to a receiver. | 09-18-2008 |
| 20080239463 | Optical Scanning Device - An optical scanning device provides a radiation source | 10-02-2008 |
| 20080239464 | TRANSMISSIVE ACTIVE GRATING DEVICE - Provided is a transmissive active grating device that transmits light or diffracts light according to an applied voltage. The transmissive active grating device includes: an electro optical material layer which transmits light; a first electrode formed on a bottom surface of the electro optical material layer; and an array of a plurality of second electrodes arranged on a top surface of the electro optical material layer in parallel with each other. | 10-02-2008 |
| 20090015904 | Optical deflector - An optical deflector made of an electro-optic material has one or more pairs of electrodes on opposite surfaces. Each pair of electrodes defines an interaction region in which an electric field applied from the electrodes produces a linear refractive-index gradient in the direction of the electric field. An incident light beam is refracted in this direction within the interaction region. The interaction region is shaped so that the light beam is also refracted in an orthogonal direction when it enters or leaves the interaction region. The light beam is thereby deflected three-dimensionally. | 01-15-2009 |
| 20090052010 | Apparatus for providing multiple independently controllable beams from a single laser output beam and delivering the multiple beams via optical fibers - An output beam from a laser is directed into an acousto-optic cell. The acousto-optic cell is driven by RF voltages at four different frequencies. A portion of the laser output beam is diffracted by the acousto-optic cell at four different angles to the laser output beam. This provides four secondary beams. The magnitude of the RF voltages applied to the acousto-optic cell and the power in the laser output beam may be cooperatively varied to provide a predetermined power in each of the secondary beams. The four secondary beams are directed into four beam separating optical fibers connected to four transport optical fibers for transporting the secondary beams to a location remote from the laser. Power in the beams is monitored at the output ends of the four optical fibers for controlling the magnitude of the RF voltages. All four beams are focused into the beam-separating fibers by a single lens. | 02-26-2009 |
| 20090073545 | DISPLAY APPARATUS USING MONITORING LIGHT SOURCE - A display apparatus using monitoring light source is disclosed. a display apparatus includes a display light source of emitting a display beam, a monitoring light source of emitting a monitoring beam, an optical modulator of modulating the display beam and the monitoring beam to output a diffracted display beam and a diffracted monitoring beam, a scanner of scanning the diffracted display beam onto a display screen, an optical detector of receiving the diffracted monitoring beam and producing a detection signal corresponding to a quantity of light of the diffracted monitoring beam, and a controller of producing a control signal for controlling the optical signal according to an image signal, deciding a compensation value on receiving the detection signal, and producing a control signal to where that the compensation value is applied when modulating the display beam. Variation in displacement of each micro-mirror can be compensated by using a monitoring light source. | 03-19-2009 |
| 20090135472 | METHOD OF MANUFACTURING OSCILLATOR DEVICE, AND OPTICAL DEFLECTOR AND OPTICAL INSTRUMENT HAVING OSCILLATOR DEVICE - A method of manufacturing an oscillator based on etching a monocrystal silicon substrate, the method including a mask forming step for forming, on the monocrystal silicon substrate, an etching mask having a pattern with a repetition shape comprised of a plurality of mutually coupled oscillators each including a torsion spring between a supporting base plate and a movable member, an etching step for etching the monocrystal silicon substrate while using the etching mask as a mask, to form on the monocrystal silicon substrate a repetition shape comprised of a plurality of corresponding mutually coupled oscillators, and a dicing step for determining a width of the movable member and the supporting base plate of each of the oscillators in the repetition shape, which width is effective to determine a resonance frequency of the individual oscillators required when these are used as oscillators, and for cutting by dicing the movable member and the supporting base plate between adjoining oscillators, at the determined width. | 05-28-2009 |
| 20090195861 | LIGHT CONTROL OF AN ELECTRONIC DEVICE - The invention is directed towards an electronic device including at least one electro active polymer element. The at least one electro active polymer element includes an electrode. The at least one electro active polymer element is configured to change volume when a voltage is applied to the electrode, where the change in volume results in a change in a luminous transmittance of the electro active polymer element. | 08-06-2009 |
| 20090201571 | INTEGRATED FRONT LIGHT DIFFUSER FOR REFLECTIVE DISPLAYS - A reflective electronic display includes a front light assembly with a diffuser for enlarging the viewing cone of the display. The front light may include a substrate, a plurality of optical turning features, and a diffuser formed therebetween. The haze of the diffuser may be spatially non-uniform and switchable between two or more levels. | 08-13-2009 |
| 20090244692 | VARIABLE FOCUS LENS TO ISOLATE OR TRAP SMALL PARTICULATE MATTER - Beam manipulation member for use in an optical tweezers system, the beam manipulation member comprising at least one optical element, being controllably deformable in order to act on a laser beam in response to signals coming from the optical tweezers system. The beam manipulation member may be used to change the focal distance of the optical tweezers system and also to deflect the laser beam. | 10-01-2009 |
| 20090284827 | OPTICAL ELEMENT - An optical element ( | 11-19-2009 |
| 20090290210 | DISPLAY USING LIGHT GUIDE AND REFRACTIVE INDEX CONTROL - Some embodiments provide a device including a first material associated with a controllable refractive index, a second material associated with a first refractive index, and a third material disposed between the first material and the second material, the third material being substantially transparent to a plurality of visible light wavelengths and being associated with a second refractive index greater than the first refractive index. Devices according to some embodiments may be employed as a display in a laptop computer, a desktop computer, a personal digital assistant, a minicomputer, a projection television, a front projector, etc. | 11-26-2009 |
| 20100060975 | SYSTEMS AND METHODS FOR IMPROVING THE PERFORMANCE OF A PHOTOREFRACTIVE DEVICE - A photorefractive device ( | 03-11-2010 |
| 20100165450 | ILLUMINATION DEVICE, DISPLAY DEVICE, AND METHOD OF MANUFACTURING LIGHT MODULATOR - An illumination device is provided and has a light guide plate, a light source and a light modulator, wherein the light modulator has a pair of transparent substrates a pair of electrodes and a light modulator layer. The light modulator layer includes a first region being changed between a transparent state and a scatterable state depending on intensity of an electric field, and a second region being more transparent than the first region in a scatterable state at an electric field having a certain intensity, the electric field being applied when the first region is changed between the transparent state and the scatterable state, and an occupancy rate of the first region in the light modulator layer is increased with increase in distance from the light source. | 07-01-2010 |
| 20100226000 | OPTICAL PROPERTY ALTERING APPARATUS - An optical property altering apparatus includes an optical property altering element formed by inductors that are smaller than a wavelength of visible light, mutually connected by connecting lines, and arranged in a single plane; a photoconductor that is excited by incident light and generates alternating current of a frequency identical to that of the incident light; and an amplifying circuit that amplifies the alternating current generated by the photoconductor and supplies the amplified alternating current to the optical property altering element, where the optical property altering element, through supply of the alternating current from the amplifying circuit, arbitrarily alters a refractive index of the incident light. | 09-09-2010 |
| 20110085229 | Methods and Apparatus for Controlling Dispersions of Nanoparticles - Electrically reconfigurable metamaterial with spatially varied refractive index is proposed for applications such as optical cloaks and lenses. The apparatus and method comprises a metamaterial in which the refractive indices are modified in space and time by applying one or more electric fields. The metamaterials are electrically controllable and reconfigurable, and consist of metal (gold, silver, etc.) particles of different shapes, such as rods, with dimension much smaller than the wavelength of light, dispersed in a dielectric medium, for example, fluids such as water, toluene, oil, glycerine, thermotropic liquid crystal, lyotropic liquid crystal, polymer, elastomer, and other suitable materials placed in a non-uniform electric field. The metamaterial is controlled by applying a non-uniform electric field that causes two effects: (1) It aligns the metallic anisometric particles with respect to the direction of the applied electric field and (2) It redistributes particles in space, making their local concentration position dependent. Both effects modify the local value of the dielectric permittivity of the composite meta-material, thus modifying its effective optical refractive index (or indices, as the material is often birefringent). | 04-14-2011 |
| 20110211249 | Optical device and method of making - An optical device and method is disclosed for forming the optical device within the wide-bandgap semiconductor substrate. The optical device is formed by directing a thermal energy beam onto a selected portion of the wide-bandgap semiconductor substrate for changing an optical property of the selected portion to form the optical device in the wide-bandgap semiconductor substrate. The thermal energy beam defines the optical and physical properties of the optical device. The optical device may take the form of an electro-optical device with the addition of electrodes located on the wide-bandgap semiconductor substrate in proximity to the optical device for changing the optical property of the optical device upon a change of a voltage applied to the optional electrodes. The invention is also incorporated into a method of using the optical device for remotely sensing temperature, pressure and/or chemical composition. | 09-01-2011 |
| 20110267680 | ELECTROACTIVE OPTICAL DEVICE - An optical device includes a soft polymer film having a first and second surface. A first compliant electrode is connected to the first surface and a second compliant electrode is connected to the second surface. A rigid optical element is connected on the first and/or second surface or integrated into the polymer film | 11-03-2011 |
| 20120206791 | Beam Steering Device - A beam steering device ( | 08-16-2012 |
| 20120281273 | DISPLAY AND ILLUMINATION UNIT - A light modulation layer disposed between a first transparent substrate and a second transparent substrate generates a plurality of first strip-like illumination light beams extending in a direction intersecting with a first end surface of the first or second transparent substrate at a first angle with use of light from a light source, when an electric field for a first mode is applied from an electrode to the light modulation layer. The light modulation layer generates a plurality of second strip-like illumination light beams extending in a direction intersecting with the first end surface at an angle different from the first angle or a direction parallel to the first end surface with use of light from the light source, when an electric field for a second mode is applied from the electrode to the light modulation layer. | 11-08-2012 |
| 20130258452 | LIGHT DEFLECTING ELEMENT - According to an embodiment, a light deflecting element includes a dielectric body, a first electrode, a second electrode, and a third electrode. Each of the second electrode and third electrode is configured to sandwich the dielectric body with the first electrode. The second electrode includes an electrode having a side that lies substantially orthogonal to an incident direction of a light beam, a side that is substantially parallel to the incident direction, and a side that intersects with the incident direction. The third electrode includes an electrode having a side that is aligned with the second electrode, a side that is substantially parallel to an incident direction of the light beam, and a side that intersects with the light beam, and that slopes in an opposite to that of the side of the second electrode that intersects with the light beam. | 10-03-2013 |
| 20130314765 | Metamaterial Devices with Environmentally Responsive Materials - Metamaterial devices with environmentally responsive materials are disclosed. In some embodiments, a metamaterial perfect absorber includes a first patterned metallic layer, a second metallic layer electrically isolated from the first patterned metallic layer by a gap, and an environmentally responsive dielectric material positioned in the gap between the first patterned metallic layer and the metallic second layer. | 11-28-2013 |
| 20130321899 | LIGHT MODULATION DEVICE FOR A DISPLAY - A display comprising an observer window, which in 3D and/or 2D representation mode of a 3D scene can be adapted to changing eye positions. Several observers can use the display simultaneously. The display includes a light modulation device having an actuatable diffraction unit and a controllable spatial light modulator, in which a 3D scene is coded in an actuatable manner, and a control unit. An observer window can be generated using coherent light beams on alternating eye positions. The diffraction unit includes at least electrodes and a controllable material into which a prism and/or lens function and/or scatter function can be written as a diffraction grating with a phase progression in an at least one-dimensionally controllable manner. | 12-05-2013 |
| 20140043672 | Fail-Safe Electro-Active Lenses and Methodology for Choosing Optical Materials for Fail-Safe Electro-Active Lenses - A fail-safe electro-active lens is presented in which the lens includes a substrate having a diffractive relief surface and an electro-active material in optical communication with the substrate. The electro-active material can include a nematic liquid crystal host. The refractive index of the substrate is equal to the average refractive index of the liquid crystal at a wavelength in the blue light spectrum. | 02-13-2014 |
| 20140160554 | IMAGE DISPLAY APPARATUS - Disclosed is an image display apparatus, including a display device displaying right-eye images and left-eye images. A light-modulating device attached to the display device; and a temperature sensor monitoring the light-modulating device temperature. The light-modulating device deflects the right-eye and left-eye images to an observer's right and left eyes respectively without a temperature variation in the temperature sensor. | 06-12-2014 |
| 20140253997 | ISLANDS-IN-SEA TYPE PHOTOREFRACTIVE POLYMER COMPOSITE, AND PHOTOREFRACTIVE DEVICE AND OPTICAL DEVICE INCLUDING THE SAME - Provided are an islands-in-sea type photorefractive polymer composite, and a photorefractive device and an optical device including the same. The islands-in-sea type photorefractive polymer composite includes at least a photoconductive polymer matrix, a nonlinear optical chromophore, and a plasticizer, as a sea component, and includes at least a photocharge generator as an island component. | 09-11-2014 |
| 20140333992 | CONTROLLABLE POLYMER ACTUATOR - A controllable polymer actuator ( | 11-13-2014 |
| 20150036209 | LIGHT DEFLECTION ELEMENT AND IMAGE DISPLAY APPARATUS USING THE SAME - A light deflection element is capable of deflecting incident light so as to follow a position of an observer and suppressing reduction in intensity of light that reaches eyes of the observer regardless of their position. The light deflection element includes: a first optical element configured to deflect incident light; a second optical element configured to change a deflection direction of emitted light by changing a refractive index thereof according to a voltage applied thereto; a third optical element; and a control section configured to control the voltage applied to the second optical element. At least one of interfaces between the first and second optical elements and the second and third optical elements is an aspheric surface. The aspheric surface has an optical power that compensates enlargement of the emitted light which is caused by refractive index distribution caused when a voltage is applied to the second optical element. | 02-05-2015 |
| 20150138627 | METHOD FOR PROJECTION OR BACK-PROJECTION ONTO GLASS COMPRISING A TRANSPARENT LAYERED ELEMENT HAVING DIFFUSE REFLECTION PROPERTIES - A projection or back-projection method, according to which a glazing including two main external surfaces, used as projection or back-projection screen, and a projector are available. The method includes projecting, by virtue of the projector, images viewable by spectators onto one of the sides of the glazing. The glazing includes a transparent layered element exhibiting diffuse reflection properties. | 05-21-2015 |
| 20150378239 | DISPLAY PANEL, MANUFACTURING METHOD THEREOF AND DISPLAY DEVICE - The present invention provides a display panel, a manufacturing method thereof, and a display device. The display panel comprises a base substrate, an opposite substrate, a first electrode, a second electrode, and a plurality of original sub-pixels on at least part of which conversion sub-pixels are provided, and an upper water layer is provided on each of the conversion sub-pixels. The conversion sub-pixel is configured to, when an electric field is generated between the first and second electrodes, shrink to one side of the original sub-pixel so that the upper water layer covers the original sub-pixel from above, and, when no electric field is generated between the first and second electrodes, cover the original sub-pixel located under the conversion sub-pixel from above. | 12-31-2015 |
| 20160377877 | MULTIVIEW DISPLAY DEVICE - The invention provides an autostereoscopic display device having an adjuster for adjusting the direction of a light beam ( | 12-29-2016 |
| 20180024412 | BEAM STEERING DEVICE INCLUDING P-N JUNCTION LAYER | 01-25-2018 |
| 20220137391 | CAMERA MODULE AND TERMINAL DEVICE - A camera module includes: a lens group including lenses; an optical array including refractive elements arranged in an array, and an image sensor arranged on an image side of the lens group and the optical array, and configured to receive light passing through the lens group and the optical array. Each refractive element includes a housing, electrodes, a first liquid and a second liquid. A chamber is defined in the housing. The first liquid and the second liquid are filled in the chamber and are immiscible with each other. A refractive index of the first liquid is different from a refractive index of the second liquid. The electrode, when being energized, is capable of generating an electric field that acts on at least one of the first liquid and the second liquid in the chamber to change an interface between the first liquid and the second liquid. | 05-05-2022 |
