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7405857 |
Light emitting diode (LED) device and method of making same
A light managing screen may provide a rear projection screen, front projection screen or component thereof. The screen may comprise a polymeric composition including a first polymeric material, and...
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7397604 |
Narrow bandpass filter assemblies for solar telescopes
The invention relates to the combination of lower transmittance etalons with higher transmittance filters, including use of a single circular polarizer with high efficiency and optical performance...
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7365895 |
Display device
A display device comprising the following arranged from light input side in the order listed below: a first reflector having a semi-transmissive and semi-reflective property; a translucent porous...
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7292383 |
Contained resonant cavity and systems incorporating same
A contained resonant cavity. The contained resonant cavity includes a first surface and a second surface that are partially transmissive and partially reflective, One or more reflective sidewall,...
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7207678 |
Prism for high contrast projection
Prism elements having TIR surfaces placed in close proximity to the active area of a SLM device to separate unwanted off-state and/or flat-state light from the projection ON-light bundle. The TIR...
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7108402 |
Apparatus and methods relating to precision control of illumination exposure
Illumination exposure control systems comprising reflective pixelated spatial light modulators that reflect substantially all of the light impinging on them into at least two different light paths....
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7050215 |
Method and apparatus for providing a gas correlation filter for remote sensing of atmospheric trace gases
A correlation filter is provided having passbands at wavelengths corresponding to the absorption spectrum of an atmospheric gas of interest. In particular, the correlation filter features narrow,...
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6914708 |
Apparatus and method for selectively exposing photosensitive materials using a spatial light modulator
An exposure apparatus ( 8 ) for fabricating optical film ( 40 ) by exposing a pattern such as for photoalignment, where the optical film ( 40 ) has a photosensitive layer ( 20 ) and a substrate (...
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6791757 |
Optical device for filtering and sensing
An apparatus for filtering electromagnetic waves and sensing deposition of chemical species, the apparatus having a substrate having a surface relief structure containing at least one dielectric...
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6791736 |
Optical device for dispersion compensation
An optical device for receiving input light and for acting on the input light to produce output light includes a first reflector and a second reflector supported in a spaced-apart, confronting...
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6751003 |
Apparatus and method for selectively exposing photosensitive materials using a reflective light modulator
An exposure system ( 8 ) for fabricating optical film ( 40 ) by exposing a pattern such as for photoalignment, where the optical film ( 40 ) has a photosensitive layer ( 20 ) and a substrate ( 10...
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6433911 |
Frustrated total internal reflection-based micro-opto-electro-mechanical modulator/demodulator
A micro-opto-electro-mechanical systems (MOEMS) modulator based on the phenomenon of frustrated total internal reflection (FTIR). The modulator effects amplitude and phase modulation at the...
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6310712 |
Discrete element light modulating microstructure devices
A light modulating or switching array (10) having a plurality of discrete protrusions (16) formed of electro-optic material, each of which is electrically and optically isolated from each other....
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6288823 |
Slow wave electrooptic light modulator apparatus and method
A highly efficient electrooptic means and method of light modulation utilizing slow wave optical propagation is provided. A grating structure (35) integrated with a single mode optical waveguide...
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6215577 |
Method and apparatus for optically modulating an optical beam with a multi-pass wave-guided optical modulator
An optical modulator that modulates light through the semiconductor substrate through the back side of an integrated circuit die. In one embodiment, an optical modulator is disposed within a flip...
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5966234 |
Retro-reflecting electroabsorption optical modulators
An optical fiber compatible modulator device provides high-contrast levels switchable using modest applied voltages. As a two-port optical modulator, a normal light signal incident at a first port...
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5452121 |
Variable spectral resolution agile filter
A variable spectral resolution agile filter has instantly adjustable spectral resolution with no required mechanical motion and a quickly adjustable center wavelength. Adjustment of the center...
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5285308 |
Spatial light modulators for incoherent/coherent multiplexed holographic recording and readout
The present invention relates to a novel spatial light modulator comprising a plurality of individual pixels that each contain separate detectors, electronic circuitry, and optical modulators. A...
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5153770 |
Total internal reflection electro-optic modulator
The TIR modulator has an electrode array distributed across an area of the reflecting surface of the electro-optic material. The electrode array has interdigitated electrodes extending inward from...
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4848880 |
Spatial light modulator
An electro-optical device for providing spatial modulation of an incoming electromagnetic wave signal, and preferably a two-dimensional incoming signal applied orthogonally to an input plane of the...
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4514046 |
Polarization-insensitive optical switch and multiplexing apparatus
Polarization-insensitive optical switch and dual channel carrier multiplexer includes a polarization beam splitter for receiving an input collimated beam which has arbitrarily polarized components,...
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4504121 |
Interferometric multimode fiber optic switch and modulator
Interferometric multimode fiber optic switches and modulators include combinations of various components. Two electro-optical crystals have a dielectric beam splitting coating affixed to portions...
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4432614 |
High frequency light modulator
An electrooptic device for controlling the intensity of a monochromatic light beam comprises a transparent element having opposed planar surfaces operable to reflect a collimated light beam...
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3986175 |
Light optic data handling system
The system herein includes light optic means which functions as a light beam distributor in making available, almost instantly, an information bearing beam of light at a multiplicity of output...
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3958862 |
Electro-optical modulator
An electro-optical modulator comprises a block of electro-optical material, a pattern of interdigitated electrodes on one face of the material, a source of light adapted to provide a non-convergent...
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3791718 |
WIDEBAND TRAVELING-WAVE MICROSTRIP MEANDER-LINE LIGHT MODULATOR
A traveling-wave electro-optical light modulator comprises an electro-optl crystal wafer with electrodes on the top and bottom surfaces and a high reflectivity coating covering the side surfaces...
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3726585 |
ELECTRICALLY MODULATED RADIATION FILTERS
The intensity of a monochromatic light beam is modulated by passing it through a multilayer arrangement near the critical angle of incidence thereby causing multiple reflections in one of these...
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3699347 |
VARIABLE ELECTRO-OPTIC FILTER AND READOUT APPARATUS
An electro-optic filter is disclosed having a Fabry-Perot structure including an electro-optic medium whose index of refraction varies as a function of the intensity of an electric field applied to...
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3694052 |
ELECTROOPTIC MODULATOR UTILIZING PHASE RETARDATION EFFECT OF INTERNAL REFLECTIONS
A lithium tantalate crystal is configured to have plural surfaces for producing sufficient internal reflection of a light beam to effect approximately a complete phase reversal of one component of...
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3656836 |
LIGHT MODULATOR
The application of a voltage between the semiconductor and the conducting layers of a structure wherein said layers are separated by an insulator layer allow the modulation of a luminous radiation...
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3567847 |
ELECTRO-OPTICAL DISPLAY SYSTEM
An electro-optical display system particularly for projecting an enlarged color television image on a screen in which the transmitted signals are converted into points of light modulated by a...
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3551028 |
ELECTRO-OPTICAL LIGHT MODULATOR - LOW VOLTAGE
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3516727 |
MULTIPASS INTERFEROMETRIC OPTICAL MODULATOR
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3515458 |
RADIATION SCANNING SYSTEM
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3498693 |
RADIATION TRANSLATING DEVICES
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3462712 |
OPTICAL MODULATOR
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3379486 |
Plural internal reflection polarized light modulator
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3307897 |
Light modulator
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3242805 |
Semiconductor light modulator or detector
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3233108 |
Method and apparatus for producing phase modulation of light with a semiconductor
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3158746 |
Light modulation in a semiconductor body
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