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7589881 |
Electro-optic device and electronic apparatus
An electro-optic device includes first and second pixels that form first and second images, respectively. The first and second pixels are arranged alternately in a first direction. A light blocking...
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7585800 |
Silica glass and optical material
It is to obtain a silica glass suitable as a material for an optical material constituting an optical system to be used for EUVL, which has a low coefficient of thermal expansion from 0 to 100°...
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7586664 |
Transparent electrode for an electrochromic switchable cell
An electrochromic switchable transparency, e.g. a window and/or a mirror includes an electrochromic switchable medium between a pair of electrode assemblies. At least one of the electrode...
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7567369 |
Optical apparatus
To provide an optical apparatus which controls an interface state to change a focal length by using an optical element having a container sealing first liquid that is conductive or polarized and...
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7551341 |
Serial modulation display having binary light modulation stage
A display has first and second spatial light modulators for modulating light from a light source. The first spatial light modulator has a plurality of elements switchable between ON and OFF states...
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7426069 |
Optical apparatus and imaging apparatus
An optical apparatus is disclosed. The optical apparatus includes: a first optical element having a first polarizing layer containing a material having a refractive index that changes in accordance...
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7298540 |
Equalizing optical wavelength routers
A dynamic equalizing optical channel router includes an input port for receiving a wavelength division multiplexed composite optical signal comprising a plurality of channels; at least one output...
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7206114 |
Plasmon-photon coupled optical devices
The present invention is directed to optical devices. More specifically, the disclosed devices include a film defining a periodic array of surface elements so as to give rise to surface plasmon...
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7190519 |
Plate-like polarizing element, a polarizing conversion unit provided with the element, and a projector provided with the unit
This specification discloses a polarizing. element for dividing light into first and second polarized lights differing in polarized state from each other by a polarizing dividing surface, directing...
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7142344 |
Optical apparatus
To provide an optical apparatus which controls an interface state to change a focal length by using an optical element having a container sealing first liquid that is conductive or polarized and...
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7110154 |
Plasmon-photon coupled optical devices
The present invention is directed to optical devices. More specifically, the disclosed devices include a film defining a periodic array of surface elements so as to give rise to surface plasmon...
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7023602 |
Reflective LCD projection system using wide-angle Cartesian polarizing beam splitter and color separation and recombination prisms
An optical imaging system including an illumination system, a Cartesian PBS, and a prism assembly. The illumination system provides a beam of light, the illumination system having an f/# less than...
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7002760 |
Adjustable convergence device for a projector and projector equipped with such a convergence device
An improved adjustable convergence device for adjusting the position of a pixel light modulator of a projector comprising at least two such light modulators mounted on the frame of the projector,...
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6963441 |
Deactivated electro-optic material and method of forming the same
An electro-optically deactivated transmissive material comprises a plurality of chemicals which are sufficient, in combination, to enable formation of an electro-optic material having an index of...
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6958843 |
Wide-range and high-resolution variable optical delay
Variable optical delay (VOD) systems are provided that include optical switching techniques, and optical manifold techniques, and/or index switching techniques. In certain embodiments, liquid...
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6947618 |
Polarization controller
Polarization controlling elements equivalent to quarter and half waveplates are constructed from sequences of variable retarder plates having fixed retardation axes. An endless polarization control...
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6895688 |
Liquid crystal polarization rotator and method of using same
A liquid crystal polarization rotator device is able to rotate polarization fast enough to compensate polarization mode dispersion. The amount or degree of rotation is rapidly reconfigurable. The...
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6876403 |
Polarized light color filter and video projector comprising the same
A polarized light color filter for producing R, G and B primary lights from inputted white light in time division. The filter is small in size and strong against mechanical vibration. The...
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6876481 |
Spatial light modulator
A spatial light modulator includes: a magnetic layer that is made of a magneto-optic material and includes a plurality of pixels in each of which a magnetization direction is independently set and...
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6768573 |
Polarization control optical space switch
The present invention is directed to an optical space switch accommodating a plurality of input light paths and output light paths. The optical space switch comprises a plurality of polarization...
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6728020 |
Optical element suitable for projection display apparatus
Platelike first transparent members 321 and platelike second transparent members 322 are prepared. Each first transparent member has substantially parallel first and second surfaces (film...
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6724513 |
Electro-optic device and electronic instrument
An electro-optic device has, on a TFT array substrate, a pixel electrode; a TFT connected thereto; a scanning line and a data line connected to the thin film transistor; a pixel potential side...
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6717706 |
State of polarization detector
State of polarization detectors and polarization control systems are disclosed. For example, the invention features an integrated optical assembly including: (i) a series of polarization-sensitive...
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6700694 |
Ferro-electric azimuth rotator
An electrically controllable azimuth optical rotator ( 10 ) includes a first quarterwave plate ( 16 ) for receiving a first beam of electromagnetic energy ( 22 ) having a first arbitrary...
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6618204 |
Light modulator, light source using the light modulator, display apparatus using the light modulator, and method for driving the light modulator
A light modulator is comprised of two unit devices each using surface plasmon generated at the interface between thin metal films respectively formed on prisms and an electro-optical material, and...
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6552836 |
High performance polarization controller and polarization sensor
The invention is an instrument for sensing the state of polarization (SOP), and for transforming the SOP of a beam of light from an incident continuously-varying arbitrary SOP to a desired exit...
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6539138 |
System and method for switching optical signals through free space
A method and system is disclosed for switching signals between at least one optical fiber and a plurality of nodes through free space. The invention includes a switch that comprises at least one...
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6529307 |
Selective intensity modulation of channels in a multiplexed optical communication system
A method and apparatus for achieving dynamic intensity modulation of the channels in a wavelength-division multiplexed optical communication system is presented. Wavelengths are spatially separated...
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6486997 |
Reflective LCD projection system using wide-angle Cartesian polarizing beam splitter
An optical imaging system including a wide-angle Cartesian polarizing beam splitter, light valve illumination optics having an f/#≦2.5, and at least one reflective light valve. The Cartesian...
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6426821 |
Optical upconverter apparatuses, methods and systems
Apparatuses, methods, and systems are disclosed that provide for simultaneously upconverting electrical signals carrying information at electric frequencies onto optical subcarrier lightwave...
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6384972 |
Projection display with three polarization beam splitter prisms
A projection display is used to process a light beam that includes first, second and third color components and that is to be provided to a projection lens. The projection display includes a...
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6373617 |
Optical system having optical control beam
An optical device having a first input for at least one input optical signal having a random state of polarization and a first optical element capable of dividing, in space, the input optical...
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6373614 |
High performance polarization controller and polarization sensor
The invention is an instrument for sensing the state of polarization (SOP), and for transforming the SOP of a beam of light from an incident continuously-varying arbitrary SOP to a desired exit...
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6278540 |
Efficient color filtering and beam steering based on controlled total internal reflection
Efficient color filtering and beam steering by combining the total internal reflection and the electro-optic effect in a special way.
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6275321 |
Polarization-insensitive optical modulators
The or each strained quantum well layer of a quantum confined Stark effect modulator is provided with a substructure of substructure layers not all having the same lattice constant. The thickness...
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6219171 |
Apparatus and method for stepper exposure control in photography
An apparatus and a method for stepper exposure control by utilizing a shutter assembly formed of electro-optic crystal materials in a photolithographic process are disclosed. In the apparatus, a...
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6115169 |
Semiconductor optical modulator and integrated optical circuit device
A semiconductor optical modulator which, with a relatively simple configuration, eliminates phase modulation of output light from the semiconductor optical modulator by applying a voltage to a...
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6040936 |
Optical transmission control apparatus utilizing metal films perforated with subwavelength-diameter holes
Generally speaking, in accordance with the invention, an optical transmission modulation apparatus is provided for modulating light transmitted through the apparatus. The apparatus comprises a...
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5986784 |
Adaptive polarization diversity detection scheme for coherent communications and interferometric fiber sensors
A method and apparatus for overcoming polarization induced signal fading in both heterodyne communication and interferometric sensing. An adjustable birefringent element in series with a...
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5973823 |
Method for the mechanical stabilization and for tuning a filter having a photonic crystal structure
A method for mechanically stabilizing and for tuning a filter having a photonic crystal structure The cavities of the filter fabricated as a photonic crystal structure are filled with optically...
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5892612 |
Tunable optical filter with white state
A switchable optical birefringent filter for polarized light incident thereon includes first and second retarder networks in optical series and a switch associated with at least one of the first...
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5889607 |
Optical modulator, optical short pulse generating device, optical waveform shaping device, and optical demultiplexer device
Incident light 1 is inputted to an electro-absorption-type optical modulator 4 via an optical circulator 2 and a lens 3, and subjected to intensity modulation that corresponds to a modulation...
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5796510 |
Ladder-structured photonic variable delay device
An ladder-structured variable delay device for providing variable true time delay to multiple optical beams simultaneously. The device comprises multiple basic units stacked on top of each other...
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5786926 |
Electro-optical device having inverted domains formed inside a ferro-electric substrate and electro-optical unit utilizing thereof
An electro-optical device such as an optical deflector comprising a ferro-electric substrate, electrodes provided on principal surfaces of this substrate and an inverted domain having a polygonal,...
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5777780 |
Electrochromic device and method for manufacturing the same
There is provided an electrochromic device comprising a pair of transparent substrates facing each other, a pair of transparent electrodes facing each other between the pair of transparent...
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5689358 |
Optical functional devices and integrated optical devices having a ridged multi-quantum well structure
An optical functional device includes a semiconductor substrate, an optical functional layer provided on said semiconductor substrate and selected from the group consisting of a light emitting...
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5659416 |
Thermometer for remote temperature measurements
An instrument is provided for measuring the temperature of an object from infrared radiation emitted by the object. The instrument includes a radiation detector, a temperature indicating device...
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5585957 |
Method for producing various semiconductor optical devices of differing optical characteristics
An optical functional device includes a semiconductor substrate, an optical functional layer provided on said semiconductor substrate and selected from the group consisting of a light emitting...
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5477350 |
Interferometric spatial switch for polarized or unpolarized light using liquid crystal
An interferometric switch for spatially switching either linearly polarized or unpolarized externally derived beams of substantially coherent light includes an optical input unit for dividing an...
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5436755 |
Dual-beam scanning electro-optical device from single-beam light source
A raster output scanning system is disclosed which utilizes a single light source, an electro-optical device and a beam-splitter to generate two light beams in order to simultaneously scan two...
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