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| Number | Title | Issue Date |
| 8189254 | RF interference reduction for functional glazings An automotive vehicle having an aperture in the vehicle body in which a glazing, comprising a switchable film laminated between at least two plies of an interlayer material is fitted is disclosed. The plies of interlayer material are laminated between a first ply of... | 05/29/2012 |
| 8115983 | Method and system for packaging a MEMS device A MEMS-based display device is described, wherein an array of interferometric modulators are configured to reflect light through a transparent substrate. The transparent substrate is sealed to a backplate and the backplate can contain electronic circuitry for contro... | 02/14/2012 |
| 8102584 | Enhanced optical readout scheme for a thermal imager employing a reconfigurable spatial light modulator An apparatus includes a reconfigurable spatial light modulator capable of spatially modulating an incident wavefront responsive to an image formed on the modulator. A light source is configured to direct a coherent illumination light beam towards the modulator such ... | 01/24/2012 |
| 8094358 | Dimming mirror A dimming mirror comprises an array of interferometric light modulators is disclosed. In one embodiment of the invention, the dimming mirror comprises a plurality of interferometric light modulators and a control circuit adapted to configure the plurality of interfe... | 01/10/2012 |
| 8072669 | Methods and apparatus for generating 16-QAM-modulated optical signal A system and method for producing a 16-QAM-modulated signal are disclosed. The methodology, in an exemplary expedient, generally comprises splitting light from a CW laser into two parts; modulating the first part with a first signal and modulating the second part wi... | 12/06/2011 |
| 8045251 | Coherence length controller Techniques for producing higher fidelity interferometer measurements by reducing sensitivity to spurious sources include reducing the coherence length of an electromagnetic beam. In addition, multiple surfaces within an optical system may be measured by electronical... | 10/25/2011 |
| 8045252 | Spatial light modulator with integrated optical compensation structure A spatial light modulator comprises an integrated optical compensation structure, e.g., an optical compensation structure arranged between a substrate and a plurality of individually addressable light-modulating elements, or an optical compensation structure located... | 10/25/2011 |
| 8023167 | 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 mo... | 09/20/2011 |
| 7999988 | Optical modulator using a dual output laser embedded in a mach zehnder interferometer A laser is placed inside the Mach-Zehnder interferometer and the output from opposite ends of the laser are fed directly into the opposite arms of the Mach-Zehnder interferometer. If the output from opposite sides of the laser are equal in amplitude and wavelength, ... | 08/16/2011 |
| 7982938 | Optical mask, and light source device This optical mask is an optical mask which applies spatial intensity modulation to input light in a beam cross-section and outputs a light after being subjected to the modulation, and when regions A0 to Ap defined by circumferences with p radiu... | 07/19/2011 |
| 7978390 | Optical modulator The present invention relates to an optical modulator that generates quaternary amplitude modulated light without inter-symbol-interference by splitting input light into three optical paths, generating a continuous wave signal in a first optical path, generating bin... | 07/12/2011 |
| 7961371 | Optical beam generating device The light beam generator 1 is provided with a laser light source 10, an optical phase modulation element 15 and others. The optical phase modulation element 15 receives coherent light output from the laser light source 10 and passe... | 06/14/2011 |
| 7952784 | Method and device for emitting mixed light colors In order to avoid firstly decidedly periodic loading of an output-buffered constant current power supply unit (17) and secondly physiological loading as a result of only intermittently appearing primary colors (R, G, B) when activating mixed light color loci,... | 05/31/2011 |
| 7898716 | System and method for controlling a digital micromirror device (DMD) system to generate an image According to particular embodiments, a system comprises one or mores light sources, a Digital Micromirror Device (DMD) system, and a controller. A light source is configured to generate light, and the DMD system comprises DMD regions configured to modulate the light... | 03/01/2011 |
| 7830578 | Apparatus for electronically controlled holograms A complex micromirror or LCD array device that performs complex optical or electro-optical transforms is described. Both real and imaginary parts of a light beam are modulated in amplitude to give a spatially and temporally modulated beam. ... | 11/09/2010 |
| 7817324 | Projector The projector has an intensity-modulable light source to emit a light beam onto a projection surface, as well as an optical switch connected after the light source for intensity modulation of the light beam emitted by the light source, and a control unit to control ... | 10/19/2010 |
| 7813022 | Light irradiation apparatus, light irradiation method, crystallization apparatus, crystallization method, device, and light modulation element A light irradiation apparatus includes a light modulation element which modulates a phase of an incident light beam to obtain a V-shaped light intensity distribution having a bottom portion of a minimum light intensity, and an image formation optical system which ap... | 10/12/2010 |
| 7764415 | High retardation-amplitude photoelastic modulator A photoelastic modulator excited by a plurality of piezoelectric transducers affixed to the surface of a photoelastic bar for generating elastic waves in a plurality of cells each bounded by piezoelectric node drivers between which an antinode driver is disposed, is... | 07/27/2010 |
| 7724413 | Speckle removing light source and lighting apparatus Provided are a speckle removing light source capable of removing speckle by using laser light whose wavelength is temporally changed and a lighting apparatus for producing an image from which the speckle is removed. Included are a light source for outputting laser l... | 05/25/2010 |
| 7724414 | Spatial light modulator A spatial light modulator applied to the collinear volume holographic storage system uses a hollow phase modulator to modulate the surrounding portion of an incident light to be a reference light, and the center portion of the incident light is modulated by an ampli... | 05/25/2010 |
| 7697186 | Spectral response modification via spatial filtering with optical fiber An optical system comprising a frequency modulated laser source adapted to produce a frequency modulated optical beam, an optical spectrum reshaper (OSR) adapted to receive the frequency modulated optical beam from the laser source and convert it into an amplitude m... | 04/13/2010 |
| 7688493 | Non-fourier pulse-shapers including a combined pulse-shaper and pulse-compressor A pulse-shaper for temporally shaping an optical pulse includes a prism or a grism arranged to disperse the optical pulse into a diverging fan of spectral-component rays. The fan of spectral-component rays is collimated by a lens or another grism. The collimated spe... | 03/30/2010 |
| 7672033 | Light modulating apparatus In a light modulating apparatus of an external modulating type which is used in an optical communication system, there are provided an LN modulator, a light branching circuit, a photoelectric converter, a bias control circuit, a driver for an LN modulator which serv... | 03/02/2010 |
| 7639414 | Polarizer and flat panel display apparatus including the same A polarizer includes a base; a grid formed on the base; and low-reflective members formed on surfaces of the grid. The low-reflective members face an incident direction of an external light, so that a bright room contrast and a visibility can be improved. ... | 12/29/2009 |
| 7561320 | Modulation of electromagnetic radiation with electrically controllable composite material An apparatus and related methods for modulating an electromagnetic radiation beam are described. A composite material is positioned in the path of the radiation beam, the composite material comprising a plurality of commonly oriented metallic first lines spaced apar... | 07/14/2009 |
| 7518775 | Method and system for packaging a MEMS device A MEMS-based display device is described, wherein an array of interferometric modulators are configured to reflect light through a transparent substrate. The transparent substrate is sealed to a backplate and the backplate can contain electronic circuitry for contro... | 04/14/2009 |
| 7499207 | Beam shaping prior to harmonic generation for increased stability of laser beam shaping post harmonic generation with integrated automatic displacement and thermal beam drift compensation A harmonic generation/beam shaping system to generate a shaped beam having a harmonic relationship with a beam generated by a laser, including a first harmonic generation element and a second harmonic generation element arranged sequentially along an axial beam path... | 03/03/2009 |
| 7440158 | Direct optical image projectors An apparatus includes a reconfigurable spatial light modulator, a light source, and a transmission filter. The reconfigurable spatial light modulator is capable of producing spatially varying amplitude and/or phase modulations of an incident light wavefront. The lig... | 10/21/2008 |
| 7431461 | Light propagation characteristic control apparatus, optical display apparatus, light propagation characteristic control program, optical display apparatus control program, light propagation characteristic control method and optical display apparatus control method Exemplary embodiments of the invention provide a light propagation characteristic control apparatus which realizes to extend the light-intensity dynamic range and the number of levels, and is suited for enhancing image quality and reducing the size and generation ti... | 10/07/2008 |
| 7433564 | Optical device for optical communication An optical phase modulator made of lithium niobate or the like phase-modulates the output light of a single-wavelength laser light source 20 that emits CW light, and the phase-modulated light is inputted to a dispersion medium 22. The positive chirp an... | 10/07/2008 |
| 7428096 | Optical pulse compressor, optical function generator, optical pulse compression method, and optical function generation method A small-sized, high-functionality optical pulse compressor capable of generating a low-power, high-repetition-frequency ultrashort pulse train used for ultrafast optical communication and photometry, and a simple-structure optical function generator for realizing an... | 09/23/2008 |
| 7421171 | Efficient terahertz sources by optical rectification in photonic crystals and metamaterials exploiting tailored transverse dispersion relations A system and a method for generating terahertz (THz) radiation are provided. The system includes a photonic crystal structure comprising at least one nonlinear material that enables optical rectification. The photonic crystal structure is configured to have the suit... | 09/02/2008 |
| 7414767 | Semiconductor optical device and semiconductor optical package using the same A semiconductor optical device, which includes a semiconductor substrate, an electro-absorption modulator, and at least one optical device is monolithically integrated on the semiconductor substrate. An insulative layer surrounds the electro-absorption modulator and... | 08/19/2008 |
| 7414769 | Reconfigurable spatial light modulators This invention relates to reconfigurable spatial light modulators (SLM) incorporating a scatter plate. Computer generated diffraction patterns or holograms may be loaded on the (SLM) either as a single frame or as a series of frames for observation by an observer. I... | 08/19/2008 |
| 7412173 | Apparatus for generating optical carrier suppressed return-to-zero An apparatus for generating a Carrier-Suppressed Return-to-Zero (CS-RZ) signal is disclosed. The apparatus includes a mixer, a Low Pass Filter (LPF), a driver amplifier and a single external modulator. The mixer generates a modulator input by mixing data with a half... | 08/12/2008 |
| 7403623 | High-rate quantum key distribution scheme relying on continuously phase and amplitude-modulated coherent light pulses One aspect of the present invention is related to a quantum cryptographic scheme comprising at least one sending unit including a physical means of encoding and distributing a raw key in the quadrature components of quantum coherent states that are continuously modu... | 07/22/2008 |
| 7394587 | Apparatus having a photonic crystal An apparatus, including a substrate, having an internal surface where at least a portion of the internal surface has a smoothly varying curvature in three orthogonal directions. The apparatus also includes a photonic crystal disposed over and conformal to at least a... | 07/01/2008 |
| 7379223 | Modulator control system An optical communications system comprising: an optical input and an output, a source of input signals in an asymmetric format and having a duty cycle, a modulator for modulating the input signals, to produce an asymmetric signal, the modulator comprising a Mach-Zeh... | 05/27/2008 |
| 7376291 | Free space optical isolator with stacked parallel polarizers The present invention provides low cost methods and apparatuses for filtering out polarized light reflections in a free space optical isolator. Multiple polarizers having relatively poor extinction ratios can be stacked together as polarizer assemblies having higher... | 05/20/2008 |
| 7369780 | Remodulating channel selectors for WDM optical communication systems The present invention provides a remodulating channel selector for a wavelength division multiplexed optical communication system. The remodulating selector receives a WDM input signal, selects a particular optical channel from the WDM signal and places the informat... | 05/06/2008 |
