| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 359246000 | Modulation of polarized light via modulating input signal | 78 |
| 20080266641 | GPS Anti-Dazzling System and Method for Vehicles - Provided is a system for preventing driver's dazzling caused by illumination lights of headlights of other vehicles at night. The system includes: a windshield polarization plate installed on a windshield of a vehicle, and transmitting a light polarized in a direction determined by an electric signal; a polarization information storing unit storing driveway information on a map, and storing polarization information including the polarization direction of the windshield polarization plate that is set in advance to prevent driver's dazzling according to a location of the driveway and a driving direction; a GPS unit sensing a location of the vehicle on the driveway and the driving direction of the vehicle, and acquiring the polarization information from the polarization information storing unit according to the sensed location and the driving direction; and a polarization controller controlling the polarization direction of the windshield polarization plate according to the polarization information transmitted from the GPS unit. | 10-30-2008 |
| 20080304128 | Speckle Reduction by Angular Scanning for Laser Projection Displays - The present invention provides a system ( | 12-11-2008 |
| 20090168136 | SOLID-STATE OPTICAL MODULATOR - A spatial light modulator comprises a solid-state chiral material disposed between electrodes such that the polarization direction of the polarized light incident thereto can be controlled through an electrical field established between the electrodes. | 07-02-2009 |
| 20090244682 | STEREOSCOPIC-IMAGE DISPLAY APPARATUS - Mediums that are arranged opposite to an elemental-image display unit, that form two lens arrays having different principal planes together with substrates, and that switches a polarization direction of incident light corresponding to applied voltage, thereby making lens effect of either one of the lens arrays effective are included. By controlling the polarization direction synchronizing with a display timing of images to be displayed on the elemental-image display unit, the lens array to be effective is switched at each display timing, and images having different near or far direction are alternately displayed on the elemental-image display unit. | 10-01-2009 |
| 20100067088 | REDUCING SPECKLE PATTERN IN DISPLAY IMAGES - A display system includes a coherent light source that can emit a coherent light beam, a de-speckling device configured to distort a wavefront of the coherent light beam to produce a distorted coherent light beam, and a two-dimensional array of light modulators that can selectively modulate the distorted coherent light beam to select a plurality of pixels for display. | 03-18-2010 |
| 20100073753 | Imaging of a plurality of types of images based on light of a plurality of wavelength bands - In an optical filter, a pair of polarization filters allows transmission of light therethrough when i) the light has a wavelength band equal to or more than a first wavelength regardless of a light oscillation direction, the wavelength band including a wavelength of infrared light and ii) the light has a wavelength band less than the first wavelength and is linearly polarized. An optical rotation control element, disposed between the paired polarization filters, allows the light to be transmitted therethrough during which optical rotation of the light is changed selectively depending on application or non-application of voltage to the optical rotation control element. The polarization filters have polarization planes, respectively, which are in parallel with each other or the polarization plane of one of the polarization filters is rotated from that of the other by an angular amount of rotation resulting from the polarization of the optical rotation control element. | 03-25-2010 |
| 20100202034 | Substrate-Guided Display with Improved Image Quality - A display system includes and image-guiding substrate with input and/or output structures configured to improve image quality. | 08-12-2010 |
| 20100208323 | MULTI-PRIMARY COLOR PROJECTION DISPLAY - Embodiments of the present invention include a method, apparatus and/or system of producing a color image using four or more primary colors. The apparatus, according to some demonstrative embodiments of the invention, may include an optical arrangement to selectively split polychromatic light into at least four primary-color light beams, and to direct the at least four primary-color light beams towards at least four reflective spatial light modulators, respectively. Other embodiments are described and claimed. | 08-19-2010 |
| 20100265558 | Controllable Light Modulator - An individual, controllable light modulator is configured with a regular pixel structure, for realizing different types of modulation. The spatial light modulator can be realized transmissively and reflectively. The light modulator contains at least one addressable, transmissive layer with a pixel structure and at least one substrate layer with retro-reflecting elements, as well as modulation control means for controlling the modulation of the pixels. The modulation control means produce a number of macropixels from at least two adjacent pixels, to which a selected modulation characteristic is assigned. The retro-reflecting elements are disposed consecutively in such a manner in the substrate layer that, in each case, a retro-reflecting element covers two adjacent pixels of a macropixel of the addressable layer, in order to direct a light bundle, incident in each case on one pixel of a macropixel, sequentially, through further pixels of the macropixel to modulate the incident light bundle. | 10-21-2010 |
| 20120194893 | TUNABLE PHOTONIC MICROWAVE OR RADIO FREQUENCY RECEIVERS BASED ON ELECTRO-OPTIC OPTICAL WHISPERING GALLERY MODE RESONATORS - Photonic devices and techniques based on tunable single sideband (SSB) modulation in whispering gallery mode resonators formed of electro-optic materials to construct RF or microwave receivers. | 08-02-2012 |
| 20130010345 | POLARIZATION MULTIPLEXING MODULATOR - A polarization conversion device converts a polarization state of a light which is input to a first waveguide, that is, TE/TM mode of the light, to output it from the first waveguide. The polarization conversion device includes: a mode converter that performs the inter-conversion of TE/TM modes of the light which is input to the first waveguide; and a polarization separator that receives the light passed through the mode converter and separates the received light into a first light, TE/TM of which mode has been converted by the mode converter and a second light, TE/TM of which mode has not been converted, to output the first light to the first waveguide. | 01-10-2013 |
| 20130182306 | LASER SCANNING MICROSCOPE WITH SWITCHABLE OPERATING MODE - A laser scanning microscope, which is switchable between different operating modes, wherein it contains, for switching in the illumination beam path, an electro-optical modulator (EOM) in a first beam path, which electro-optical modulator has arranged, upstream and downstream of it, adjustable first and second polarization-rotating elements and, downstream of it, at least one first polarization splitter for producing a second beam path, in which light-influencing means are located, wherein one or more of the following operating modes of the LSM can be set:—Single spot LSM—multispot LSM—single spot FMM—multispot FMM—FRAP system. | 07-18-2013 |
| 20130208334 | Optical Signal Processing - An optical regenerator for regenerating a multi-level phase encoded signal. A first non-linear medium (HNLF | 08-15-2013 |
| 20130235444 | LIGHT CONTROL APPARATUS - An optical control apparatus includes: an optical input/output port to which light is input from outside or from which light is output outside; a spatial optical modulator that emits light having entered from the optical input/output port towards the optical input/output port and has polarization dependence; a condensing element that is disposed between the optical input/output port and the spatial optical modulator and optically couples the optical input/output port and the spatial optical modulator; and a polarization control element that is disposed between the condensing element and the spatial optical modulator, controls a polarization state of input light to cause the input light to have only a single polarization direction, and outputs the input light controlled. | 09-12-2013 |
| 20140098409 | LIGHT MODULATOR - A light modulator includes a band-pass filter configured to select a wavelength of an incident light; a first layer; a second layer configured to include a trench with a bottom surface, a side surface, and a top surface; a thin metal film provided on the side surface of the trench of the second layer; and a dielectric layer provided between the first and second layers at the bottom and the top surfaces of the trench. An electric field is applied to the dielectric layer by using the first and second layers. The dielectric layer is provided between the thin metal film and the first layer at the side surface of the second layer so that the thin metal film has an anisotropic permittivity due to the electric field. | 04-10-2014 |
| 20140118813 | COLLIMATING OPTICAL DEVICE AND SYSTEM - There is provided a light-guide, compact collimating optical device, including a light-guide having a light-waves entrance surface, a light-waves exit surface and a plurality of external surfaces, a light-waves reflecting surface carried by the light-guide at one of the external surfaces, two retardation plates carried by light-guides on a portion of the external surfaces, a light-waves polarizing beamsplitter disposed at an angle to one of the light-waves entrance or exit surfaces, and a light-waves collimating component covering a portion of one of the retardation plates. A system including the optical device and a substrate, is also provided. | 05-01-2014 |
| 20160013868 | SILICON PHOTONIC HYBRID POLARIZATION DEMULTIPLEXER | 01-14-2016 |
| 359247000 | Using reflective or cavity structure | 13 |
| 20090021821 | Multi-Primary Color Projection Display - Embodiments of the present invention include a method, apparatus and/or system of producing a color image using four or more primary colors. The apparatus, according to some demonstrative embodiments of the invention, may include an optical arrangement to selectively split polychromatic light into at least four primary-color light beams, and to direct the at least four primary-color light beams towards at least four reflective spatial light modulators, respectively. Other embodiments are described and claimed. | 01-22-2009 |
| 20090034048 | METHOD FOR MANUFACTURING OPTICAL MODULATOR, OPTICAL MODURATOR, AND OPTICAL MODULATION SYSTEM - A manufacturing method is provided for a light modulation device that improves utilization efficiency of light. After forming a first reflective layer using a metallic material such as Pt or the like, on a substrate, a light modulating film is formed using an electro-optic material in which refractive index changes in accordance with an applied electrical field. After that, planarization is carried out so that irregularities on an upper surface of the light modulating film are less than or equal to 1/100 of the wavelength of light incident on the light modulation device. A transparent electrode is then formed using ITO, ZnO, or the like, on the light modulating film, and a second reflective layer including a dielectric multilayer is formed. | 02-05-2009 |
| 20090059342 | METHOD AND DEVICE FOR PACKAGING A SUBSTRATE - A package structure and method of packaging for an interferometric modulator. A thin film material is deposited over an interferometric modulator and transparent substrate to encapsulate the interferometric modulator. A gap or cavity between the interferometric modulator and the thin film provides a space in which mechanical parts of the interferometric modulator may move. The gap is created by removal of a sacrificial layer that is deposited over the interferometric modulator. | 03-05-2009 |
| 20090296190 | Rearview Mirror Assemblies With Anisotropic Polymer Laminates - Anisotropic film laminates for use in image-preserving reflectors such as rearview automotive mirror assemblies, and related methods of fabrication. A film may comprise an anisotropic layer such as a light-polarizing layer and other functional layers. The film having controlled water content is heated under omnidirectional pressure and vacuum to a temperature substantially equal to or above a lower limit of a glass-transition temperature range of the film so as to be laminated to a substrate. The laminate is configured as part of a mirror structure so as to increase contrast of light produced by a light source positioned behind the mirror structure and transmitted through the mirror structure towards a viewer. The mirror structure is devoid of any extended distortion and is characterized by SW and LW values less than 3, more preferably less than 2, and most preferably less than 1. | 12-03-2009 |
| 20090323154 | BACKLIGHT DISPLAYS - A transmissive backlit display is disclosed. In one aspect, the backlit display comprises a backlight and an array of transmissive interferometric modulators. Each interferometric modulator comprises a fixed and moving dielectric mirror stack. The interferometric modulators cause light within the desired wavelength range to be transmitted while reflecting at least a portion of the remaining light. | 12-31-2009 |
| 20100277786 | Rearview Mirror Assemblies With Anisotropic Polymer Laminates - Anisotropic film laminates for use in image-preserving reflectors such as rearview automotive mirror assemblies, and related methods of fabrication. A film may comprise an anisotropic layer such as a light-polarizing layer and other functional layers. The film having controlled water content is heated under omnidirectional pressure and vacuum to a temperature substantially equal to or above a lower limit of a glass-transition temperature range of the film so as to be laminated to a substrate. The laminate is configured as part of a mirror structure so as to increase contrast of light produced by a light source positioned behind the mirror structure and transmitted through the mirror structure towards a viewer. The mirror structure is devoid of any extended distortion and is characterized by SW and LW values less than 3, more preferably less than 2, and most preferably less than 1. | 11-04-2010 |
| 20150346549 | GLOSSY DISPLAY SUBSTRATE AND GLOSSY DISPLAY APPARATUS - The present invention discloses a glossy display substrate and a glossy display apparatus. Reflective area and transmissive area are formed on the glossy display substrate. The glossy display substrate comprises an underlayer as well as a first control unit, a reflection layer and a second control unit arranged above the underlayer. The first control unit and the reflection layer are arranged in the reflective area, and the second control unit is arranged in the transmissive area. | 12-03-2015 |
| 20160054597 | ELECTRO-OPTIC MODULATOR - An electro-optic modulator for a laser beam includes an yttrium vanadate crystal cooperative with a double-pass electro-optic switch. A beam to be modulated passes through the yttrium vanadate crystal and makes a forward and a reverse pass through the electro-optic switch. The electro-optic switch returns the beam to the vanadate crystal selectively in one of two polarization orientations at 90 degrees to each other. Depending on the polarization orientation, the returned beam is transmitted by the crystal along a corresponding one of two about-parallel paths spaced apart from each other. | 02-25-2016 |
| 359248000 | Semiconductor | 5 |
| 20100142026 | SEMICONDUCTOR OPTICAL MODULATOR - An optical modulator is provided with a stripe-shaped optical waveguide, which has an upper clad layer, a lower clad layer formed between the upper clad layer and a substrate, and an undoped core layer which is arranged between the upper clad layer and the lower clad layer and has a complex refractive index that changes corresponding to the intensity of an applied electric field, to a signal light propagating inside. On the both sides of the stripe-shaped optical waveguide, conductor walls are configured by arranging a pair of parallel blocking flat boards with an insulating wall in between. Thus, the semiconductor optical modulator having a high optical modulation efficiency is provided | 06-10-2010 |
| 20100321755 | OPTICAL MODULATOR, METHODS OF MANUFACTURING AND OPERATING THE SAME AND OPTICAL APPARATUS INCLUDING THE OPTICAL MODULATOR - An optical modulator, methods of manufacturing and operating the same, and an optical apparatus including the optical modulator are disclosed. The optical modulator includes an electro-optical converter and an optical-electric converter, stacked perpendicular to a substrate, and a gate transistor. The gate transistor gates a signal transmitted to the electro-optical converter from the optical-electric converter and allows charges generated in the optical-electric converter and charges remaining in the electro-optical converter to flow while bypassing the electro-optical converter when gating ON is performed. | 12-23-2010 |
| 20120033284 | SEMICONDUCTOR OPTICAL MODULATION DEVICE, MACH-ZEHNDER INTERFEROMETER TYPE SEMICONDUCTOR OPTICAL MODULATOR, AND METHOD FOR PRODUCING SEMICONDUCTOR OPTICAL MODULATION DEVICE - A semiconductor optical modulation device includes a substrate; a first semiconductor cladding layer of a first conductivity type disposed on the substrate; an optical waveguide layer disposed on the first semiconductor cladding layer, the optical waveguide layer including a first semiconductor optical confinement layer, a second semiconductor optical confinement layer, and an insulating layer disposed between the first semiconductor optical confinement layer and the second semiconductor optical confinement layer, the insulating layer being made of aluminum oxide; a second semiconductor cladding layer of a second conductivity type disposed on the optical waveguide layer; a first electrode electrically connected to the first semiconductor cladding layer; and a second electrode electrically connected to the second semiconductor cladding layer. | 02-09-2012 |
| 20120162743 | UNCOOLED OPTICAL SEMICONDUCTOR DEVICE - An uncooled optical semiconductor device includes: a semiconductor laser outputting laser light; an electric field absorption optical modulator absorbing light depending on a voltage applied to the electric field absorption optical modulator; a monitor photodiode monitoring backlight of the semiconductor laser; an auto power control circuit feeding back current of the monitor photodiode to a bias current supplied to the semiconductor laser; and a bias circuit feeding back an average value of a light absorption current to control a bias voltage applied to the electric field absorption optical modulator. The light absorption current is generated when the electric field absorption optical modulator absorbs the laser light. | 06-28-2012 |
| 20130077150 | UNIT OF OPTICAL MODULATOR, OPTICAL MODULATOR INCLUDING THE SAME, AND METHOD OF FABRICATING THE OPTICAL MODULATOR - An optical modulator unit, an optical modulator, and a method of fabricating are provided. The optical modulator unit includes a first contact layer transmitting infrared rays, a lower reflection layer disposed on the first contact layer, an active layer, including a multiple quantum well, disposed on the lower reflection layer, and an upper reflection layer disposed on the active layer. The optical modulator includes a plurality of optical modulator units sharing the first contact layer. The method includes sequentially stacking a first contact layer, a lower reflection layer, an active layer, an upper reflection layer, and a second contact layer on a substrate; etching the second contact layer, the upper reflection layer, the active layer, and the lower reflection layer, exposing a surface of the first contact layer; forming a first electrode on the first contact layer; and forming a second electrode on the second contact layer. | 03-28-2013 |
| 359249000 | Compensation technique | 4 |
| 20090168137 | BROAD SPECTRAL RANGE POLARIZATION ROTATOR - A switchable apochromatic polarization rotator is provided. A first fixed waveplate has a first principal axis fixed in a first orientation. A second fixed waveplate has a second principal axis fixed in a second orientation. First and second switchable waveplates have principal axes oriented such that broad spectral range electromagnetic radiation transmitted through all of the waveplates has a first rotated polarization, wherein, in response to one or more control signals applied to the switchable waveplates, the principal axes of the switchable waveplates rotate such that the electromagnetic radiation transmitted through all of the waveplates has a second rotated polarization. The switchable waveplates utilize ferroelectric liquid crystal material, nematic liquid crystal material, or be mechanically rotated to adjust for orientation of their principal axes. Utilizing waveplates as described may be used to tune for a desired spectral range and/or compensate for temperature dependencies. | 07-02-2009 |
| 20090310207 | Polarization Controller with Minimum Wavelength Dependency - The invention relates to converting a first light signal (L | 12-17-2009 |
| 20100149617 | Light Modulator for Representing Complex-Valued Data - A light modulator is disclosed for representing complex-valued data, comprising an encoding area that has an arrangement of pixels, the phase of which can be controlled. This largely avoids an interfering optical path difference between adjacent pixels or pixel groups when a complex value is encoded in several adjacent phase pixels of the encoding area, the optical path difference varying according to the angle. One respective specific structured delaying layer, which causes the optical path of an incident linearly polarized beam to change according to the angle, is associated with at least one predefined pixel of a group of adjacent pixels of the encoding area. The thickness of the delaying layer is designed such that the modification of the optical path caused by the delaying layer runs in the opposite direction from the angle-related modification of the optical path difference between individual pixels of the pixel group. | 06-17-2010 |
| 20160147092 | LAUNCH OPTICS WITH OPTICAL PATH COMPENSATION FOR A WAVELENGTH SELECTIVE SWITCH - An optical device includes an optical port array, a first walk-off crystal, a first half-wave plate, a second walk-off crystal and a segmented half-wave plate. The optical port array has a first and second plurality of ports for receiving optical beams. The first walk-off crystal spatially separates the beams into first and second portions that are in first and second orthogonal polarization states, respectively. The first portions are walked-off by the first walk-off crystal and the second portions pass therethrough without being walked-off. The first half-wave plate rotates the polarization state of the first and second portions of the optical beams. The second walk-off crystal is oriented in an opposite direction from the first walk-off crystal such that the second portions are walked-off by the second walk-off crystal and the first portions pass therethrough without being walked-off. The segmented half-wave plate receives the first or second portions of the beams. | 05-26-2016 |
| 359250000 | Using plural mediums | 2 |
| 20140340728 | ELECTRONICALLY DIMMABLE OPTICAL DEVICE - An electronically dimmable optical device, including, in sequence, an active absorbing polarizer; a first static reflective polarizer; an active polarization rotator; and a second static reflective polarizer; configured so that the reflectivity and/or transmissivity of the device can be controlled (increased or decreased) by application of a voltage across the active absorbing polarizer and/or the active polarization rotator. One or more polarization levels can be selected by controlling the voltage at the active absorptive polarizer such that setting the active absorptive polarizer to a selected polarization level determines the brightness of an image produced by the device. | 11-20-2014 |
| 20150293337 | ABERRATION CORRECTION OPTICAL UNIT AND LASER MICROSCOPE - An aberration correction optical unit ( | 10-15-2015 |
| 359251000 | With particular direction of the field in relation to the medium, beam direction or polarization | 3 |
| 20110164302 | METHOD AND APPARATUS FOR MODULATING LIGHT - Embodiments relate to a method and apparatus for producing polarized light, having a modulator crystal, where the modulator crystal incorporates a birefringent electro-optic material. The modulator crystal has an optic axis, a first polarization axis, and a second polarization axis, where the first polarization axis and second polarization axis are each perpendicular to the optic axis and perpendicular to each other. The apparatus can also include an electrode pair, where application of an electric field modulates light passing through the modulator crystal that is polarized along the first polarization axis. Embodiments pertain to a method and apparatus for modulating light. The apparatus incorporates a modulator crystal having a electro-optic material. The device also has at least two electrode pairs, where each electrode pair that modulates light passing through the modulator crystal that has a direction of travel that has a component parallel to the optic axis. | 07-07-2011 |
| 20120314271 | METHOD AND APPARATUS FOR MODULATING LIGHT - Embodiments relate to a method and apparatus for producing polarized light, having a modulator crystal, where the modulator crystal incorporates a birefringent electro-optic material. The modulator crystal has an optic axis, a first polarization axis, and a second polarization axis, where the first polarization axis and second polarization axis are each perpendicular to the optic axis and perpendicular to each other. The apparatus can also include an electrode pair, where application of an electric field modulates light passing through the modulator crystal that is polarized along the first polarization axis. Embodiments pertain to a method and apparatus for modulating light. The apparatus incorporates a modulator crystal having an electro-optic material. The device also has at least two electrode pairs, where each electrode pair modulates light passing through the modulator crystal that has a direction of travel that has a component parallel to the optic axis. | 12-13-2012 |
| 20140055835 | ILLUMINATION DEVICE AND DISPLAY UNIT - An illumination device capable of suppressing formation of a double image in three-dimensional display, and a display unit including the illumination device are provided. In a light modulation device bonded to a light guide plate, a scattering region that scatters light propagating within the light guide plate, and a transmissive region that allows light propagating within the light guide plate to pass therethrough are formed through control of an electric field. The scattering region scatters light to generate linear illumination light. A reflector is provided directly below the light modulation device. The reflector reflects light, which is part of the scattered light generated in the scattering region and is emitted to a reflector side, to generate reflected light to be focused directly below the scattering region. | 02-27-2014 |
| 359252000 | With particular medium or state of the medium | 6 |
| 20090059343 | Electro-Optical Tunable Birefringent Filter - An electrically tunable Lyot type filter is a Lyot that include one or more filter elements. Each filter element may have a planar, solid crystal comprised of a material that exhibits birefringence and is electro-optically active. Transparent electrodes may be coated on each face of the crystal. An input linear light polarizer may be located on one side of the crystal and oriented at 45 degrees to the optical axis of the birefringent crystal. An output linear light polarizer may be located on the other side of the crystal and oriented at −45 degrees with respect to the optical axis of the birefringent crystal. When an electric voltage is applied between the electrodes, the retardation of the crystal changes and so does the spectral transmission of the optical filter. | 03-05-2009 |
| 20090316247 | Light Polarization Converter - A light polarization converter includes: a crystal substrate of lithium niobate cut in a plane defined by a direction perpendicular to an optical axis of the crystal substrate; a waveguide formed in the crystal substrate, extending in a direction parallel to the optical axis of the crystal substrate, and containing Zn and Ni therein; and an electrode unit disposed on the crystal substrate. | 12-24-2009 |
| 20140111845 | Display Device And Manufacturing Method Thereof - A display device comprises: a first substrate ( | 04-24-2014 |
| 20160139436 | ELECTRO-OPTICAL SINGLE CRYSTAL ELEMENT, METHOD FOR THE PREPARATION THEREOF, AND SYSTEMS EMPLOYING THE SAME - The present invention relates to an Electro-Optical (E-O) crystal elements, their applications and the processes for the preparation thereof. More specifically, the present invention relates to the E-O crystal elements (which can be made from doped or un-doped PMN-PT, PIN-PMN-PT or PZN-PT ferroelectric crystals) showing super-high linear E-O coefficient γ | 05-19-2016 |
| 20180024389 | ELECTRO-OPTICAL SINGLE CRYSTAL-ELEMENT, METHOD FOR THE PREPARATION THEREOF, AND SYSTEMS EMPLOYING THE SAME | 01-25-2018 |
| 359253000 | Liquid medium | 1 |
| 20110116153 | DISPLAY DEVICE - Display device is based on layer break up or layer displacement having at least two different states, in which one of the fluids, e.g., oil in a first state, adjoins at least a first support plate and, in the second state, the other fluid at least partly adjoins the first support plate. In one embodiment, a picture element corresponds to a substantially closed space and, in the first state, the other fluid layer substantially completely adjoins both support plates and is divided in two sub-layers. This makes it possible, on the one hand, to use lower voltages to make displacement occur. On the other hand, this opens the opportunity to color displays. | 05-19-2011 |
| 359254000 | With particular electrode structure or arrangement, or medium mounting structure or arrangement | 6 |
| 20080239450 | Controllable Optical Lens - A controllable optical lens comprises a chamber housing first and second fluids, the interface between the fluids defining a lens surface. An electrode arrangement controls the shape of the lens surface and is also for sensing the shape of the lens surface. The electrode arrangement comprising a plurality of electrode segments at different angular orientations about an optical axis of the lens. Surface characteristics are sensed at a plurality of angular orientations from the plurality of electrode segments, and in this way the local shape characteristics of the lens at different angular positions around the lens can be determined. In this way, asymmetry can be detected. | 10-02-2008 |
| 20090097095 | MICRO-ELECTROMECHANICAL MICROSHUTTER ARRAY - A microshutter array has a frame having a light transmissive portion. Linear microshutter elements extend across the light transmissive portion and in parallel to each other. Each microshutter element has a flat blade extended in a length direction and first and second torsion arms extending outwards from each side of the blade in the length direction, the blade extending across the light transmissive portion. There is at least one electrode associated with each linear microshutter element and extended in the length direction parallel to the microshutter element. | 04-16-2009 |
| 20090147343 | MEMS DEVICES REQUIRING NO MECHANICAL SUPPORT - MEMS devices such as interferometric modulators are described having movable layers that are mechanically isolated. The movable layers are electrically attractable such that they can be selectively moved between a top and bottom electrode through application of a voltage. In interferometric modulators, the movable layers are reflective such that an optically resonant cavity is formed between the layer and a partially reflective layer, thereby providing a display pixel that can be turned on or off depending on the distance between the reflective layers in the resonant cavity. | 06-11-2009 |
| 20090290206 | OPTICAL WAVEGUIDE DEVICE - The present optical waveguide device, which improves the optical phase rotation efficiency with respect to activation voltage, includes: a substrate having electro-optic effects; a Mach-Zehnder optical waveguide formed on the substrate; and a signal electrode. The signal electrode is formed in an integrated manner such that an electric signal for applying the electric field travels from an upper part of either one of the two interference optical waveguides, which form the Mach-Zehnder optical waveguide, to an upper part of the other one of the two, and also, a periodical polarization characteristics region, in which regions opposite to each other in polarization are alternately arranged, being provided for a part of the other one of the interference optical waveguides on the substrate. | 11-26-2009 |
| 20110063707 | Support System for Vibrating Optical Assembly - A support system for a vibrating component of an optical assembly that is adjacent to a frame, wherein the component is driven to vibrate along an X-direction of a three-dimensional Cartesian coordinate system. The support system includes a support member connected to the frame. The support system has contact elements that are adjustable for movement into and out of contact with the vibrating component to constrain motion of the vibrating component in the Y-direction and in the Z-direction, without constraining motion of the vibrating component in the X-direction. | 03-17-2011 |
| 20130342887 | LIGHT MODULATOR HAVING A SWITCHABLE VOLUME GRATING - Spatial light modulator configured as a periodic structure of polymer grating layers arranged essentially at equal distances and intermediate spaces to form a periodic grating structure. The surfaces bounding the periodic grating structure have electrodes influencing the refractive index of the active optical medium by an electric field. The electrodes have a pixelated arrangement and can be driven independently of each other with an electrical voltage. The orientation layer thickness and grating period of the periodic grating structure are configured so that they do not correspond to the Bragg condition for the light from at least one light source, and so that for light from the at least one light source incident on the spatial light modulator the light fraction deviated owing to Bragg diffraction is less than the undeviated transmitted light fraction. | 12-26-2013 |
| 359256000 | With birefringent element | 7 |
| 20080247026 | OPTICAL DIPLEXER WITH LIQUID CRYSTAL TUNABLE WAVEPLATE - An optical diplexer having a birefringent crystal for providing substantially a whole number of wavelength retardation to first optical energy having said first polarization type, and having a first wavelength, fed to a first end of said crystal, and exiting a second end of said crystal with said first polarization type and said first wavelength and for providing substantially an odd integer number of half wavelength retardation to second optical energy having said first polarization type, having a second wavelength, fed to said second end of said crystal and exiting said first end of said crystal with said second polarization type and said second wavelength. The system includes an electronically actuated polarization aligner for adjusting phase retardation of the second energy fed to the second end of the crystal prior to such second energy entering the second end of the birefringent crystal. | 10-09-2008 |
| 20090116096 | All Optical System and Method for Providing Extended Depth of Focus of Imaging - An imaging system and method are presented. The system comprises an imaging lens unit, an imaging detector, and a birefringent element located between the imaging lens unit and the imaging detector. The system is thus configure and operable to provide in-focus imaging of objects located at both near-field and far-field ranges. Also provided is an optical device configured to be mounted on an imaging lens, being one of the following: a lens of an individual's glasses, on a contact lens, and an eye internal lens. The optical device is configured to be located between the imaging lens and the retina and comprises a birefringent element, to thereby provide in-focus imaging onto the retina of the objects located at both near-field and far-field ranges therefrom. | 05-07-2009 |
| 20100165437 | Variable Reflectance Mirrors and Windows - Various structures for variable reflectance rearview mirrors and variable transmittance windows are disclosed. One embodiment pertains to the provision of a polarized reflector in a rearview mirror. Another embodiment pertains to the provision of a switchable cholesteric liquid crystal element in a window. Yet another embodiment pertains to the provision of a plurality of apertures in a reflector layer of a rearview mirror where the apertures are sized and positioned in alignment with light emitting areas of a display positioned behind the reflector layer. In another embodiment, a moveable display or mirror element is attached to a rearview mirror housing. | 07-01-2010 |
| 20100265559 | ELECTRO-OPTIC ELEMENT AND SCANNING OPTICAL DEVICE - An electro-optic element includes an electro-optic crystal having a birefringent property, and in which a refractive index distribution is generated in accordance with an intensity of an electric field caused inside, a pair of intensity modulating electrodes for applying a voltage for varying the birefringent property of the electro-optic crystal, a pair of scanning electrodes for applying a voltage for varying the refractive index distribution of the electro-optic crystal, and a polarization selection member provided at least on a side of a laser beam emission end face out of a laser beam entrance end face and the laser beam emission end face of the electro-optic crystal, and for selectively transmitting a part with a specific vibration direction out of a light beam emitted from the electro-optic crystal. | 10-21-2010 |
| 20100271684 | ILLUMINATION APPARATUS - A controllable light directional distributor for an illumination apparatus, and a method of manufacture of the same in which multiple elongate optical elements are arranged to provide controllable divergence angle from a light source with low divergence output angle. | 10-28-2010 |
| 20130021658 | Compact See-Through Display System - An optical system includes a display panel, an image former, a viewing window, a proximal beam splitter, and a distal beam splitter. The display panel is configured to generate a light pattern. The image former is configured to form a virtual image from the light pattern generated by the display panel. The viewing window is configured to allow outside light in from outside of the optical system. The virtual image and the outside light are viewable along a viewing axis extending through the proximal beam splitter. The distal beam splitter is optically coupled to the display panel and the proximal beam splitter and has a beam-splitting interface in a plane that is parallel to the viewing axis. A camera may also be optically coupled to the distal beam splitter so as to be able to receive a portion of the outside light that is viewable along the viewing axis. | 01-24-2013 |
| 20130314759 | Compact See-Through Display System - An optical system includes a display panel, an image former, a viewing window, a proximal beam splitter, and a distal beam splitter. The display panel is configured to generate a light pattern. The image former is configured to form a virtual image from the light pattern generated by the display panel. The viewing window is configured to allow outside light in from outside of the optical system. The virtual image and the outside light are viewable along a viewing axis extending through the proximal beam splitter. The distal beam splitter is optically coupled to the display panel and the proximal beam splitter and has a beam-splitting interface in a plane that is parallel to the viewing axis. A camera may also be optically coupled to the distal beam splitter so as to be able to receive a portion of the outside light that is viewable along the viewing axis. | 11-28-2013 |
| 359257000 | Pockel`s cell | 10 |
| 20090237768 | Method and System for Laser Amplification Using a Dual Crystal Pockels Cell - A system for laser amplification includes a dual-crystal Pockels cell which is used to control emission of laser pulses from an ultra-fast laser. The Pockels cell is constructed to enable adjustment of the rotational orientation of one crystal relative to the other crystal. The rotational orientation of one or both crystals in the Pockels cell is adjusted to control sidebands in the laser pulse. | 09-24-2009 |
| 20100195185 | OPTICAL CLEANING OF CRYSTALS - Method for preparing a purified crystal for use in an optical component, from an impure crystal having impurities or crystal defects capable of causing a specific absorption of incident light, includes heating the impure crystal to a temperature at which ions in the crystal are mobile and provide conductivity. A part of the crystal is illuminated with an electromagnetic purifying beam having a frequency in or near a visible frequency range so as to optically excite and migrate charges in the crystal, the charges being compensated by a counter-migration of the ions so as to be fixed in place thereafter so as to provide a purified crystal zone. The crystal is cooled to a future operating temperature. | 08-05-2010 |
| 20100321756 | Large Aperture Polymer Electro-Optic Shutter Device and Method of Manufacturing Same - A large-aperture direct-view high-speed electro-optic shutter includes an electro-optic polymer material constructed to form a Pockels cell and an integrated photoconducting semiconductor switch. A chromophore-doped polymer material or chromophore copolymer, wherein the chromophore is oriented within the polymer material, exhibits a linear electro-optic effect when an electric field is applied to the device. In one embodiment, the polymer host material comprises one or more of a polycarbonate, amorphous polycarbonate, or polymethylmethacrylate polymer hosts. The optically active chromophore comprising one or more coumarin and coumarin derivatives, stilbene or tolane derivatives is incorporated within the polymer host, forming a guest-host polymer. In another embodiment, the chromophore is chemically bonded to the monomer that forms the polymer, resulting in an optically active copolymer. The electro-optic shutter device is then activated by incident light through the photoconducting semiconductor switch, rendering the Pockels cell to have an optical density of at least 3.0. | 12-23-2010 |
| 20110038026 | Method And System For Fine Adjustment Of Optical Elements Position - An optical device is presented comprising: a cavity defining a cavity axis of light propagation; at least two optical elements having their optical axes, respectively, and being aligned along said cavity axis such that the optical axes of the optical elements coincide with said cavity axis; and a positioning unit associated with at least one of said at least two optical elements. The positioning unit is configured and operable for providing controllable axial rotation of said at least one optical element about the cavity axis, thereby enabling controllable fine adjustment of orientation of said at least one optical element relative to the at least one other optical element, while keeping the aligned positions of the optical elements with respect to said cavity axis. | 02-17-2011 |
| 20110267671 | COMBINING MULTIPLE LASER BEAMS TO FORM HIGH REPETITION RATE, HIGH AVERAGE POWER POLARIZED LASER BEAM - Two pulsed lasers ( | 11-03-2011 |
| 20120105931 | ELECTRO-OPTIC DEVICE WITH GAP-COUPLED ELECTRODE - An electro-optic device includes an electro-optic crystal having a predetermined thickness, a first face and a second face. The electro-optic device also includes a first electrode substrate disposed opposing the first face. The first electrode substrate includes a first substrate material having a first thickness and a first electrode coating coupled to the first substrate material. The electro-optic device further includes a second electrode substrate disposed opposing the second face. The second electrode substrate includes a second substrate material having a second thickness and a second electrode coating coupled to the second substrate material. The electro-optic device additionally includes a voltage source electrically coupled to the first electrode coating and the second electrode coating. | 05-03-2012 |
| 20120120474 | APPARATUS AND METHOD FOR OPTICAL SWITCHING IN METAMATERIALS - An optical switch combining a Pockels cell and a metamaterial, wherein polarization of an incident light is controlled by a voltage on the Pockels cell to block or pass the incident light. The optical switch has advantages of small size, fast switching, simple structure, and high stability. A plasmonic-EIT kind of optical switch is based on plasmonic hybridization and a plasmonic interaction is controlled by altering a polarization state of the incident light. Therefore, the incident light can be selectively allowed to pass through or blocked according to the polarization thereof. | 05-17-2012 |
| 20120170099 | Large Aperture Polymer Electro-Optic Shutter Device and Method of Manufacturing Same - A large-aperture direct-view high-speed electro-optic shutter includes an electro-optic polymer material constructed to form a Pockels cell and an integrated photoconducting semiconductor switch. A chromophore-doped polymer material or chromophore copolymer, wherein the chromophore is oriented within the polymer material, exhibits a linear electro-optic effect when an electric field is applied to the device. In one embodiment, the polymer host material comprises one or more of a polycarbonate, amorphous polycarbonate, or polymethylmethacrylate polymer hosts. The optically active chromophore comprising one or more coumarin and coumarin derivatives, stilbene or tolane derivatives is incorporated within the polymer host, forming a guest-host polymer. In another embodiment, the chromophore is chemically bonded to the monomer that forms the polymer, resulting in an optically active copolymer. The electro-optic shutter device is then activated by incident light through the photoconducting semiconductor switch, rendering the Pockels cell to have an optical density of at least 3.0. | 07-05-2012 |
| 20150380891 | OPTICAL ROTATING DEVICE FOR INJECTING A LASER BEAM AND METHOD FOR POSITIONING A LASER BEAM - An optical rotating device for injecting a laser beam may include deflection devices between which the injected laser beam may rotate in the optical rotating device, and an extraction device that may extract the laser beam after carrying out a predetermined number of rotations in the rotating device. The deflection devices may be arranged such that the position of the laser beam during extraction is dependent on the number of rotations carried out in the optical rotating device. | 12-31-2015 |
| 20160170243 | POCKELS CELL DRIVER CIRCUIT WITH INDUCTANCES | 06-16-2016 |
| 20090237768 | Method and System for Laser Amplification Using a Dual Crystal Pockels Cell - A system for laser amplification includes a dual-crystal Pockels cell which is used to control emission of laser pulses from an ultra-fast laser. The Pockels cell is constructed to enable adjustment of the rotational orientation of one crystal relative to the other crystal. The rotational orientation of one or both crystals in the Pockels cell is adjusted to control sidebands in the laser pulse. | 09-24-2009 |
| 20100195185 | OPTICAL CLEANING OF CRYSTALS - Method for preparing a purified crystal for use in an optical component, from an impure crystal having impurities or crystal defects capable of causing a specific absorption of incident light, includes heating the impure crystal to a temperature at which ions in the crystal are mobile and provide conductivity. A part of the crystal is illuminated with an electromagnetic purifying beam having a frequency in or near a visible frequency range so as to optically excite and migrate charges in the crystal, the charges being compensated by a counter-migration of the ions so as to be fixed in place thereafter so as to provide a purified crystal zone. The crystal is cooled to a future operating temperature. | 08-05-2010 |
| 20100321756 | Large Aperture Polymer Electro-Optic Shutter Device and Method of Manufacturing Same - A large-aperture direct-view high-speed electro-optic shutter includes an electro-optic polymer material constructed to form a Pockels cell and an integrated photoconducting semiconductor switch. A chromophore-doped polymer material or chromophore copolymer, wherein the chromophore is oriented within the polymer material, exhibits a linear electro-optic effect when an electric field is applied to the device. In one embodiment, the polymer host material comprises one or more of a polycarbonate, amorphous polycarbonate, or polymethylmethacrylate polymer hosts. The optically active chromophore comprising one or more coumarin and coumarin derivatives, stilbene or tolane derivatives is incorporated within the polymer host, forming a guest-host polymer. In another embodiment, the chromophore is chemically bonded to the monomer that forms the polymer, resulting in an optically active copolymer. The electro-optic shutter device is then activated by incident light through the photoconducting semiconductor switch, rendering the Pockels cell to have an optical density of at least 3.0. | 12-23-2010 |
| 20110038026 | Method And System For Fine Adjustment Of Optical Elements Position - An optical device is presented comprising: a cavity defining a cavity axis of light propagation; at least two optical elements having their optical axes, respectively, and being aligned along said cavity axis such that the optical axes of the optical elements coincide with said cavity axis; and a positioning unit associated with at least one of said at least two optical elements. The positioning unit is configured and operable for providing controllable axial rotation of said at least one optical element about the cavity axis, thereby enabling controllable fine adjustment of orientation of said at least one optical element relative to the at least one other optical element, while keeping the aligned positions of the optical elements with respect to said cavity axis. | 02-17-2011 |
| 20110267671 | COMBINING MULTIPLE LASER BEAMS TO FORM HIGH REPETITION RATE, HIGH AVERAGE POWER POLARIZED LASER BEAM - Two pulsed lasers ( | 11-03-2011 |
| 20120105931 | ELECTRO-OPTIC DEVICE WITH GAP-COUPLED ELECTRODE - An electro-optic device includes an electro-optic crystal having a predetermined thickness, a first face and a second face. The electro-optic device also includes a first electrode substrate disposed opposing the first face. The first electrode substrate includes a first substrate material having a first thickness and a first electrode coating coupled to the first substrate material. The electro-optic device further includes a second electrode substrate disposed opposing the second face. The second electrode substrate includes a second substrate material having a second thickness and a second electrode coating coupled to the second substrate material. The electro-optic device additionally includes a voltage source electrically coupled to the first electrode coating and the second electrode coating. | 05-03-2012 |
| 20120120474 | APPARATUS AND METHOD FOR OPTICAL SWITCHING IN METAMATERIALS - An optical switch combining a Pockels cell and a metamaterial, wherein polarization of an incident light is controlled by a voltage on the Pockels cell to block or pass the incident light. The optical switch has advantages of small size, fast switching, simple structure, and high stability. A plasmonic-EIT kind of optical switch is based on plasmonic hybridization and a plasmonic interaction is controlled by altering a polarization state of the incident light. Therefore, the incident light can be selectively allowed to pass through or blocked according to the polarization thereof. | 05-17-2012 |
| 20120170099 | Large Aperture Polymer Electro-Optic Shutter Device and Method of Manufacturing Same - A large-aperture direct-view high-speed electro-optic shutter includes an electro-optic polymer material constructed to form a Pockels cell and an integrated photoconducting semiconductor switch. A chromophore-doped polymer material or chromophore copolymer, wherein the chromophore is oriented within the polymer material, exhibits a linear electro-optic effect when an electric field is applied to the device. In one embodiment, the polymer host material comprises one or more of a polycarbonate, amorphous polycarbonate, or polymethylmethacrylate polymer hosts. The optically active chromophore comprising one or more coumarin and coumarin derivatives, stilbene or tolane derivatives is incorporated within the polymer host, forming a guest-host polymer. In another embodiment, the chromophore is chemically bonded to the monomer that forms the polymer, resulting in an optically active copolymer. The electro-optic shutter device is then activated by incident light through the photoconducting semiconductor switch, rendering the Pockels cell to have an optical density of at least 3.0. | 07-05-2012 |
| 20150380891 | OPTICAL ROTATING DEVICE FOR INJECTING A LASER BEAM AND METHOD FOR POSITIONING A LASER BEAM - An optical rotating device for injecting a laser beam may include deflection devices between which the injected laser beam may rotate in the optical rotating device, and an extraction device that may extract the laser beam after carrying out a predetermined number of rotations in the rotating device. The deflection devices may be arranged such that the position of the laser beam during extraction is dependent on the number of rotations carried out in the optical rotating device. | 12-31-2015 |
| 20160170243 | POCKELS CELL DRIVER CIRCUIT WITH INDUCTANCES | 06-16-2016 |
| 359257000 | Pockels cell | 10 |
| 20090237768 | Method and System for Laser Amplification Using a Dual Crystal Pockels Cell - A system for laser amplification includes a dual-crystal Pockels cell which is used to control emission of laser pulses from an ultra-fast laser. The Pockels cell is constructed to enable adjustment of the rotational orientation of one crystal relative to the other crystal. The rotational orientation of one or both crystals in the Pockels cell is adjusted to control sidebands in the laser pulse. | 09-24-2009 |
| 20100195185 | OPTICAL CLEANING OF CRYSTALS - Method for preparing a purified crystal for use in an optical component, from an impure crystal having impurities or crystal defects capable of causing a specific absorption of incident light, includes heating the impure crystal to a temperature at which ions in the crystal are mobile and provide conductivity. A part of the crystal is illuminated with an electromagnetic purifying beam having a frequency in or near a visible frequency range so as to optically excite and migrate charges in the crystal, the charges being compensated by a counter-migration of the ions so as to be fixed in place thereafter so as to provide a purified crystal zone. The crystal is cooled to a future operating temperature. | 08-05-2010 |
| 20100321756 | Large Aperture Polymer Electro-Optic Shutter Device and Method of Manufacturing Same - A large-aperture direct-view high-speed electro-optic shutter includes an electro-optic polymer material constructed to form a Pockels cell and an integrated photoconducting semiconductor switch. A chromophore-doped polymer material or chromophore copolymer, wherein the chromophore is oriented within the polymer material, exhibits a linear electro-optic effect when an electric field is applied to the device. In one embodiment, the polymer host material comprises one or more of a polycarbonate, amorphous polycarbonate, or polymethylmethacrylate polymer hosts. The optically active chromophore comprising one or more coumarin and coumarin derivatives, stilbene or tolane derivatives is incorporated within the polymer host, forming a guest-host polymer. In another embodiment, the chromophore is chemically bonded to the monomer that forms the polymer, resulting in an optically active copolymer. The electro-optic shutter device is then activated by incident light through the photoconducting semiconductor switch, rendering the Pockels cell to have an optical density of at least 3.0. | 12-23-2010 |
| 20110038026 | Method And System For Fine Adjustment Of Optical Elements Position - An optical device is presented comprising: a cavity defining a cavity axis of light propagation; at least two optical elements having their optical axes, respectively, and being aligned along said cavity axis such that the optical axes of the optical elements coincide with said cavity axis; and a positioning unit associated with at least one of said at least two optical elements. The positioning unit is configured and operable for providing controllable axial rotation of said at least one optical element about the cavity axis, thereby enabling controllable fine adjustment of orientation of said at least one optical element relative to the at least one other optical element, while keeping the aligned positions of the optical elements with respect to said cavity axis. | 02-17-2011 |
| 20110267671 | COMBINING MULTIPLE LASER BEAMS TO FORM HIGH REPETITION RATE, HIGH AVERAGE POWER POLARIZED LASER BEAM - Two pulsed lasers ( | 11-03-2011 |
| 20120105931 | ELECTRO-OPTIC DEVICE WITH GAP-COUPLED ELECTRODE - An electro-optic device includes an electro-optic crystal having a predetermined thickness, a first face and a second face. The electro-optic device also includes a first electrode substrate disposed opposing the first face. The first electrode substrate includes a first substrate material having a first thickness and a first electrode coating coupled to the first substrate material. The electro-optic device further includes a second electrode substrate disposed opposing the second face. The second electrode substrate includes a second substrate material having a second thickness and a second electrode coating coupled to the second substrate material. The electro-optic device additionally includes a voltage source electrically coupled to the first electrode coating and the second electrode coating. | 05-03-2012 |
| 20120120474 | APPARATUS AND METHOD FOR OPTICAL SWITCHING IN METAMATERIALS - An optical switch combining a Pockels cell and a metamaterial, wherein polarization of an incident light is controlled by a voltage on the Pockels cell to block or pass the incident light. The optical switch has advantages of small size, fast switching, simple structure, and high stability. A plasmonic-EIT kind of optical switch is based on plasmonic hybridization and a plasmonic interaction is controlled by altering a polarization state of the incident light. Therefore, the incident light can be selectively allowed to pass through or blocked according to the polarization thereof. | 05-17-2012 |
| 20120170099 | Large Aperture Polymer Electro-Optic Shutter Device and Method of Manufacturing Same - A large-aperture direct-view high-speed electro-optic shutter includes an electro-optic polymer material constructed to form a Pockels cell and an integrated photoconducting semiconductor switch. A chromophore-doped polymer material or chromophore copolymer, wherein the chromophore is oriented within the polymer material, exhibits a linear electro-optic effect when an electric field is applied to the device. In one embodiment, the polymer host material comprises one or more of a polycarbonate, amorphous polycarbonate, or polymethylmethacrylate polymer hosts. The optically active chromophore comprising one or more coumarin and coumarin derivatives, stilbene or tolane derivatives is incorporated within the polymer host, forming a guest-host polymer. In another embodiment, the chromophore is chemically bonded to the monomer that forms the polymer, resulting in an optically active copolymer. The electro-optic shutter device is then activated by incident light through the photoconducting semiconductor switch, rendering the Pockels cell to have an optical density of at least 3.0. | 07-05-2012 |
| 20150380891 | OPTICAL ROTATING DEVICE FOR INJECTING A LASER BEAM AND METHOD FOR POSITIONING A LASER BEAM - An optical rotating device for injecting a laser beam may include deflection devices between which the injected laser beam may rotate in the optical rotating device, and an extraction device that may extract the laser beam after carrying out a predetermined number of rotations in the rotating device. The deflection devices may be arranged such that the position of the laser beam during extraction is dependent on the number of rotations carried out in the optical rotating device. | 12-31-2015 |
| 20160170243 | POCKELS CELL DRIVER CIRCUIT WITH INDUCTANCES | 06-16-2016 |
| 20090237768 | Method and System for Laser Amplification Using a Dual Crystal Pockels Cell - A system for laser amplification includes a dual-crystal Pockels cell which is used to control emission of laser pulses from an ultra-fast laser. The Pockels cell is constructed to enable adjustment of the rotational orientation of one crystal relative to the other crystal. The rotational orientation of one or both crystals in the Pockels cell is adjusted to control sidebands in the laser pulse. | 09-24-2009 |
| 20100195185 | OPTICAL CLEANING OF CRYSTALS - Method for preparing a purified crystal for use in an optical component, from an impure crystal having impurities or crystal defects capable of causing a specific absorption of incident light, includes heating the impure crystal to a temperature at which ions in the crystal are mobile and provide conductivity. A part of the crystal is illuminated with an electromagnetic purifying beam having a frequency in or near a visible frequency range so as to optically excite and migrate charges in the crystal, the charges being compensated by a counter-migration of the ions so as to be fixed in place thereafter so as to provide a purified crystal zone. The crystal is cooled to a future operating temperature. | 08-05-2010 |
| 20100321756 | Large Aperture Polymer Electro-Optic Shutter Device and Method of Manufacturing Same - A large-aperture direct-view high-speed electro-optic shutter includes an electro-optic polymer material constructed to form a Pockels cell and an integrated photoconducting semiconductor switch. A chromophore-doped polymer material or chromophore copolymer, wherein the chromophore is oriented within the polymer material, exhibits a linear electro-optic effect when an electric field is applied to the device. In one embodiment, the polymer host material comprises one or more of a polycarbonate, amorphous polycarbonate, or polymethylmethacrylate polymer hosts. The optically active chromophore comprising one or more coumarin and coumarin derivatives, stilbene or tolane derivatives is incorporated within the polymer host, forming a guest-host polymer. In another embodiment, the chromophore is chemically bonded to the monomer that forms the polymer, resulting in an optically active copolymer. The electro-optic shutter device is then activated by incident light through the photoconducting semiconductor switch, rendering the Pockels cell to have an optical density of at least 3.0. | 12-23-2010 |
| 20110038026 | Method And System For Fine Adjustment Of Optical Elements Position - An optical device is presented comprising: a cavity defining a cavity axis of light propagation; at least two optical elements having their optical axes, respectively, and being aligned along said cavity axis such that the optical axes of the optical elements coincide with said cavity axis; and a positioning unit associated with at least one of said at least two optical elements. The positioning unit is configured and operable for providing controllable axial rotation of said at least one optical element about the cavity axis, thereby enabling controllable fine adjustment of orientation of said at least one optical element relative to the at least one other optical element, while keeping the aligned positions of the optical elements with respect to said cavity axis. | 02-17-2011 |
| 20110267671 | COMBINING MULTIPLE LASER BEAMS TO FORM HIGH REPETITION RATE, HIGH AVERAGE POWER POLARIZED LASER BEAM - Two pulsed lasers ( | 11-03-2011 |
| 20120105931 | ELECTRO-OPTIC DEVICE WITH GAP-COUPLED ELECTRODE - An electro-optic device includes an electro-optic crystal having a predetermined thickness, a first face and a second face. The electro-optic device also includes a first electrode substrate disposed opposing the first face. The first electrode substrate includes a first substrate material having a first thickness and a first electrode coating coupled to the first substrate material. The electro-optic device further includes a second electrode substrate disposed opposing the second face. The second electrode substrate includes a second substrate material having a second thickness and a second electrode coating coupled to the second substrate material. The electro-optic device additionally includes a voltage source electrically coupled to the first electrode coating and the second electrode coating. | 05-03-2012 |
| 20120120474 | APPARATUS AND METHOD FOR OPTICAL SWITCHING IN METAMATERIALS - An optical switch combining a Pockels cell and a metamaterial, wherein polarization of an incident light is controlled by a voltage on the Pockels cell to block or pass the incident light. The optical switch has advantages of small size, fast switching, simple structure, and high stability. A plasmonic-EIT kind of optical switch is based on plasmonic hybridization and a plasmonic interaction is controlled by altering a polarization state of the incident light. Therefore, the incident light can be selectively allowed to pass through or blocked according to the polarization thereof. | 05-17-2012 |
| 20120170099 | Large Aperture Polymer Electro-Optic Shutter Device and Method of Manufacturing Same - A large-aperture direct-view high-speed electro-optic shutter includes an electro-optic polymer material constructed to form a Pockels cell and an integrated photoconducting semiconductor switch. A chromophore-doped polymer material or chromophore copolymer, wherein the chromophore is oriented within the polymer material, exhibits a linear electro-optic effect when an electric field is applied to the device. In one embodiment, the polymer host material comprises one or more of a polycarbonate, amorphous polycarbonate, or polymethylmethacrylate polymer hosts. The optically active chromophore comprising one or more coumarin and coumarin derivatives, stilbene or tolane derivatives is incorporated within the polymer host, forming a guest-host polymer. In another embodiment, the chromophore is chemically bonded to the monomer that forms the polymer, resulting in an optically active copolymer. The electro-optic shutter device is then activated by incident light through the photoconducting semiconductor switch, rendering the Pockels cell to have an optical density of at least 3.0. | 07-05-2012 |
| 20150380891 | OPTICAL ROTATING DEVICE FOR INJECTING A LASER BEAM AND METHOD FOR POSITIONING A LASER BEAM - An optical rotating device for injecting a laser beam may include deflection devices between which the injected laser beam may rotate in the optical rotating device, and an extraction device that may extract the laser beam after carrying out a predetermined number of rotations in the rotating device. The deflection devices may be arranged such that the position of the laser beam during extraction is dependent on the number of rotations carried out in the optical rotating device. | 12-31-2015 |
| 20160170243 | POCKELS CELL DRIVER CIRCUIT WITH INDUCTANCES | 06-16-2016 |
