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| Number | Title | Issue Date |
| 7656571 | Balanced light valve Radiation from an illumination source (102) is directed to a total internal reflector (TIR) modulator (10). The modulator includes a an electro-optic member (213) with a plurality of individually addressable pixel regions (210) comprised ... | 02/02/2010 |
| 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 a second polymeric material disposed as a plurality of elongated str... | 07/29/2008 |
| 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 for its filtered polarization, to achieve necessary throughput of a n... | 07/08/2008 |
| 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 body having a plurality of pores in which a translucent material is fi... | 04/29/2008 |
| 7335985 | Method and system for electrically coupling a chip to chip package A chip and a chip package can transmit information to each other by using a set of converters capable of communicating with each other through the emission and reception of electromagnetic signals. Both the chip and the chip package have at least one such converter ... | 02/26/2008 |
| 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, are positioned between the first surface and the second surface. In a ... | 11/06/2007 |
| 7221495 | Thin film precursor stack for MEMS manufacturing This invention provides a precursor film stack for use in the production of MEMS devices. The precursor film stack comprises a carrier substrate, a first layer formed on the carrier substrate, a second layer of an insulator material formed on the first layer, and a ... | 05/22/2007 |
| 7218799 | External optical modulator An optical modulator structure includes a block that includes electro-optical (EO) materials. A waveguide and electrode structure is formed on a substrate. The block is in close proximity to the waveguide and electrode structure so as to form optical modulation when... | 05/15/2007 |
| 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 critical angle of these prisms is selected to affect either the off-st... | 04/24/2007 |
| 7164520 | Packaging for an interferometric modulator A package is made of a transparent substrate having an interferometric modulator and a back plate. A non-hermetic seal joins the back plate to the substrate to form a package, and a desiccant resides inside the package. A method of packaging an interferometric modul... | 01/16/2007 |
| 7126738 | Visible spectrum modulator arrays Light in the visible spectrum is modulated using an array of modulation elements, and control circuitry connected to the array for controlling each of the modulation elements independently, each of the modulation elements having a surface which is caused to exhibit ... | 10/24/2006 |
| 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. At least one of the light paths acts as a propagating light path and... | 09/19/2006 |
| 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, non-linearly spaced passbands having center wavelengths that are corre... | 05/23/2006 |
| 7015559 | Method and system for electrically coupling a chip to chip package A chip and a chip package can transmit information to each other by using a set of converters capable of communicating with each other through the emission and reception of electromagnetic signals. Both the chip and the chip package have at least one such converter ... | 03/21/2006 |
| 6977767 | Plasmonic nanophotonics methods, materials, and apparatuses Controlling, guiding, manipulating, and circuiting light and performing surface-enhanced spectroscopy in a medium comprising plasmonic nanomaterials via the excitation of plasmon modes in the materials. The plasmonic nanomaterials are based on metal films with or wi... | 12/20/2005 |
| 6947613 | Wavelength selective switch and equalizer A device comprising a light modulator including a plurality of elements wherein each element is selectively operable such that the plurality of elements are dynamically configurable to combine selected ones of a plurality of grating periods such that selected portio... | 09/20/2005 |
| 6936489 | Method and system for electrically coupling a chip to chip package A chip and a chip package can transmit information to each other by using a set of converters capable of communicating with each other through the emission and reception of electromagnetic signals. Both the chip and the chip package have at least one such converter ... | 08/30/2005 |
| 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 (10). The exposure apparatus (8) direc... | 07/05/2005 |
| 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 relationship with the first reflector such that the input light received ... | 09/14/2004 |
| 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 body with physical dimensions smaller than the wavelength of the filter... | 09/14/2004 |
| 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). The exposure system (8) directs an ... | 06/15/2004 |
| 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 boundary of a waveguide. Wavelength-specific switching is achieve... | 08/13/2002 |
| 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. The protrusions (16) have defined a top face (20), a bottom ... | 10/30/2001 |
| 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 (32) on an electrooptic substrate (30) induces coupling betw... | 09/11/2001 |
| 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 chip packaged integrated circuit die. The optical modulator... | 04/10/2001 |
| 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 is deflected to a non-normal direction for passage through... | 10/12/1999 |
| 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 wavelength is accomplished by reliable piezoelectric actuators... | 09/19/1995 |
| 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 primary application of such a spatial light modulator is to ... | 02/08/1994 |
| 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 a rectangular-shaped outer electrode conducting block and ... | 10/06/1992 |
| 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 device, which device includes an array of modulation regi... | 07/18/1989 |
| 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, splitting the beam into the two components. One of the co... | 04/30/1985 |
| 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 thereof. The coated portions of the two crystals are juxtap... | 03/12/1985 |
| 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 alternately from the two surfaces. A plurality of semiconductor s... | 02/21/1984 |
| 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 positions in the system, as opposed to many well known line sc... | 10/12/1976 |
| 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 beam of light and arranged to apply said beam directly to... | 05/25/1976 |
