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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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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,...
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...
7369290 Modulator bias control  
Approaches to bias control are disclosed for an optical modulator that modulates an optical carrier with a data input signal. In one embodiment an electrical bias input signal provided to the...
7369289 Optical modulation device and image display apparatus using the same  
An optical modulation device is disclosed which can suppress production of a cause of degradation such as a void or hillock on a light illumination surface thereof and can be incorporated in an...
7330253 Method and apparatus for radiation analysis and encoder  
Method and apparatus for analyzing radiation using analyzers and encoders employing the spatial modulation of radiation dispersed by wavelength or imaged along a line.
7324262 Optical shutter and light scanning apparatus employing the same  
An optical shutter includes a cell having a transparent panel and a hydrophobic transparent insulation panel which are arranged to face each other, a transparent electrode formed on an outer...
7321454 Apparatus for modulating one or both of spectral phase and amplitude of an optical signal  
The invention includes a method and apparatus for modulating one or both of spectral phase and amplitude of a received optical signal. The apparatus includes a spatial dispersion mechanism for...
7310177 Electro-optic reflective element assembly  
A rearview mirror assembly for a vehicle includes an electro-optic reflective element with an overhang region at an edge region of a first substrate that extends beyond a corresponding edge region...
7304781 Ultra broadband mirror using subwavelength grating  
A sub-wavelength grating structure that has a very broad reflection spectrum and very high reflectivity comprising segments made of high refractive index material disposed on a layer of low...
7289276 Illumination optical system, exposure device using the illumination optical system, and exposure method  
In an illumination optical system constituted to uniformize the intensity distribution of illumination light by use of an optical integrator, the overall length thereof is shortened. The...
7289256 Electrical characterization of interferometric modulators  
Disclosed herein are methods and systems for testing the electrical characteristics of reflective displays, including interferometric modulator displays. In one embodiment, a controlled voltage is...
7261843 Photochromic optical article  
Describes a photochromic article, e.g., an ophthalmic photochromic plastic article, such as a lens, in which the article includes (1) a rigid substrate, e.g., a transparent substrate such as a...
7256920 Electro-optic modulator  
A modulator circuit ( 28 ) for directing a voltage across a modulator element ( 26 ) to modulate a beam ( 20 ) includes a first inductor L 1 that is electrically connected in parallel to the...
7242508 Infrared modulator for spectrometer  
The invention relates to an infrared modulator for spectrometer. It comprises a light source ( 1 ), a beam splitter ( 2 ) for splitting the light from the source into two beams, a first plane...
7239454 Image display apparatus  
An image display apparatus includes a diaphragm ( 9 b ) arranged at a pupil position. The shape of an aperture of the diaphragm ( 9 b ) is similar to the shape of a light source image formed by an...
7236287 Pockels cell  
The invention relates to a pockels cell comprising two spaced-apart cubical RTP crystals that have a square cross section, are located one behind another, and are oriented towards each other so as...
7229576 Substituted phenanthropyrans  
The present invention relates to specific photochromic phenanthropyrans as well as to their use in synthetic resin materials of all types, especially for ophthalmic purposes. In particular, the...
7228014 System for reducing the electrical return loss of a lithium niobate traveling wave optical modulator with low characteristic impedance  
An electro-optical modulator is disclosed that has a microwave input, chip with a thin film resistor or a lumped resistor located between an input RF connector and an RF electrode on a Lithium...
7227687 Complex spatial light modulator  
One embodiment relates to a spatial light modulator (SLM) for modulating light incident thereon. The SLM includes a plurality of pixels, each pixel including a plurality of phase shift elements....
7227679 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...
7212331 Reciprocating optical modulator  
A reciprocating optical modulator includes a continuous light path fulfilling an amplification function, an optical modulation part formed on the light path, a first optical band-pass filter and a...
7201824 Hybrid optical multi-axis beam steering apparatus  
An apparatus for precisely steering a beam of light by making use of a hybrid inter optical alignment that occurs when a beam steering mechanism is micro-machined with respect to a crystallographic...
7196833 Apparatus for simultaneous OTDM demultiplexing, electrical clock recovery and optical clock generation, and optical clock recovery  
An apparatus for simultaneous OTDM demultiplexing, electrical clock recovery and optical clock generation, and optical clock recovery using a traveling-wave electroabsorption modulator. The...
7196832 Substrate for electrooptic device and method of manufacturing the same, electrooptic device, and electronic equipment  
A substrate for an electrooptic device comprising a light-transmissive base member, a reflection layer formed on the base member so as to include each reflection portion and a corresponding...
7190505 Electrochromic device having an improved fill port plug  
An electrochromic device, comprising: (a) a first substantially transparent substrate having an electrically conductive material associated therewith; (b) a second substrate having an electrically...
7184190 Electro-optic reflective element assembly  
An electro-optic reflective element assembly includes a pair of substrates and an electro-optic medium sandwiched therebetween. Each of the pair of substrates includes at least one conductive or...
7184189 Apparatus for simultaneous OTDM demultiplexing, electrical clock recovery and optical clock generation, and optical clock recovery  
An apparatus for simultaneous OTDM demultiplexing, electrical clock recovery and optical clock generation, and optical clock recovery using a traveling-wave electroabsorption modulator. The...
7177062 Display drive method and display apparatus  
The present invention is directed to a display method of performing image display, which comprises outputting corresponding subfield data every plural subfields by pulse width modulation to thereby...
7173753 Optical data receiver systems  
An optical data receiver for the distribution and demodulation of compressed TDM data packages comprises, optical distributor means to which the data packages are applied for selective distribution...
7170057 Image enhancement system and method for night goggles  
A dichroic type narrow-band-pass filter is used as a beamsplitter inside a night vision goggle eyepiece. The filter is combined with appropriately aligned polarizers and liquid crystal type shutter...
7167293 Silicon-based electro-optic phase modulator with reduced residual amplitude modulation  
An arrangement for removing unwanted amplitude modulation from the output of an electro-optic phase modulator (formed within a silicon-on-insulator (SOI) system) includes resonant filters that are...
7165851 Optical frequency linear chirp variable unit  
A linear opto-frequency chirp amount variable apparatus using a dielectric multilayer film mirror, which does not require the optical axis to be realigned each time the amount of a chirp is to be...
7162108 Planar lightwave circuit variable optical attenuator  
The invention relates to a variable optical attenuator constructed as a Mach Zehnder planar lightwave circuit, particularly including a channel waveguide support structure for heat isolation and...
7161725 Frequency locker  
A method and assembly for frequency stabilization of an optical signal especially from a laser, the assembly ( 11 ) comprising beam splitter ( 15 ), a passive frequency discriminator ( 16 ), and a...
7154658 Wavefront correction system  
A wavefront correction system using a dual frequency liquid crystal spatial light modulator to vary phase relationships of a wavefront is disclosed. A light beam from the dual frequency liquid...
7149024 Optical modulator module  
The present invention provides an optical modulator module comprising: a chip carrier; a semiconductor optical modulator for modulating light based on an electronic signal; a strip conductor...
7130108 Display members  
A display member for use at a temperature greater than at least about 40° C. The display member includes an arrangement of a plurality of optically anisotropic rotatable elements comprising a...
7116460 Modulation control  
A modulator arrangement for modulating an optical signal using a quadrature phase shift key for use in an optical wavelength division multiplex (WDM) optical communications system comprising a...
7116458 Coherent generation, conversion, and modulation of electromagnetic radiation using shock waves or solitons propagating through polaritonic or excitonic materials  
An optical modulator includes a crystal structure that exhibits polaritonic or excitonic behavior. A shock wave propagates through the crystal structure so as to optically modulate and manipulate a...
7106486 Optical modulator control system  
An apparatus comprising a control system coupled to an optical modulator. The control system including an Radio Frequency (RF)/dither ratio unit coupled to the optical modulator, wherein the...
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