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6614581 |
Methods and apparatus for providing a multi-stop micromirror
A microstructure is provided which facilitates alignment by allowing movement of the microstructure between one of a plurality of positions. The microstructure is included in an electromechanical...
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6594060 |
Electromechanical conformal grating device with improved optical efficiency and contrast
An electromechanical conformal grating device having a period Λ, that includes: an elongated ribbon element including a light reflective surface; a pair of end supports for supporting the...
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6594059 |
Tilt mirror fabry-perot filter system, fabrication process therefor, and method of operation thereof
A tilt mirror Fabry-Perot tunable filter comprises a frame and a first mirror structure. A tether system connects the first mirror structure to this frame. The tether system is designed to enable...
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6591032 |
Optical switching and attenuation systems and methods therefor
Novel light switches and attenuators are disclosed. In one form of the invention, a novel 2×2 crossbar switch is formed by positioning a movable reflector intermediate four fiberoptic lines. In...
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6585410 |
Radiant temperature nulling radiometer
A self-calibrating nulling radiometer for non-contact temperature measurement of an object, such as a body of water, employs a black body source as a temperature reference, an optomechanical...
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6559999 |
System for modulating radiation using two rotating discs
The present invention is directed to a system for modulating thermal infrared radiation for a pyroelectric imaging sensor or similar sensor by providing two discs rotating at the same speed, both...
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6556334 |
Flat panel display using microelectromechanical device
There is provided a flat panel display using a micro-electromechanical device, comprising a back glass substrate having a transparent electrode of a transparent electric conductor; a front glass...
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6538799 |
Magnetically actuated torsional micro-mechanical mirror system
A torsional micro-mechanical mirror system includes a mirror assembly rotatably supported by a torsional mirror support assembly for rotational movement over and within a cavity in a base. The...
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6535663 |
Microelectromechanical device with moving element
A microelectromechanical (MEMS) device has a substrate, and a generally planar moving element, such as a mirror, disposed in parallel to the surface of the substrate. An actuator is operatively...
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6532096 |
System and method for canceling ringing in a MEMS device
A Finite Impulse Response (FIR) filter for suppressing ringing in tunable, or adjustable, members of MEMS devices is described. In embodiments of the invention, the FIR filter includes staggered...
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6487001 |
Article comprising wedge-shaped electrodes
An electrode for use in actuating MEMS elements. The electrode declines in height along its length from a first end thereof to second end thereof. In use, the first end of the electrode is disposed...
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6473217 |
Diaphragm device
The space required in the vicinity of a shutter aperture can be reduced to achieve an overall reduction in size of a device by providing a diaphragm mechanism for covering the shutter aperture...
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6466353 |
Low frequency optical shutter and driver
An optical shutter comprising a frame with an aperture and shutter blade for modulating a light beam or a particle stream passing through the aperture. The top end of the shutter blade comprises a...
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6437898 |
Device for changing the passage of light through a window, especially through the transparent cover of a motor vehicle roof
A device for changing the passage of light through a window, especially through a transparent cover of a motor vehicle roof toward the motor vehicle interior, by at least two strip-shaped grid...
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6437903 |
Light modulator with two mirror sets
Manufacture a spatial light modulator by fabricating a first set of micro-mirrors, then subsequently fabricating a second set of micro-mirrors interspersed with the first set, to reduce space...
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6428173 |
Moveable microelectromechanical mirror structures and associated methods
Microelectromechanical structures (MEMS) are provided that are adapted to controllably move mirrors in response to selective thermal actuation. In one embodiment, the MEMS moveable mirror structure...
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6404413 |
Electrostatic chromatophoric display
A display mechanism is described having the capability of showing two or more colors using one or more flexible membranes that electrostatically switch positions between stationary electrodes of...
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6404534 |
Micro-mirror device and driving method
A micro-mirror device and associated method, the device including a substrate, address electrodes provided on the substrate, and a micro-mirror facing the substrate and spaced a predetermined...
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6396620 |
Electrostatically actuated electromagnetic radiation shutter
An electromagnetic radiation shutter device driven by electrostatic forces comprises a stationary membrane capable of allowing electromagnetic radiation transmission therethrough, and a first and...
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6381062 |
Optical data modulation system with self-damped diffractive light modulator
A system for modulating a beam of light in accordance with an input data stream having a data rate greater than 2 MHz, includes a source of light for directing light along a predetermined path; a...
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6327071 |
Drive methods of array-type light modulation element and flat-panel display
In an array-type light modulation element drive method comprising the steps of arranging electromechanical light modulation elements for executing light modulation by displacement operation of a...
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6317108 |
Electrostatic video display drive circuitry and displays incorporating same
Disclosed is a low-cost, programmable electronically actuated, continuous use traffic sign including a pixellated display matrix, the display matrix being electronically actuatable to display a...
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6313937 |
Electrically actuated magnetic micro-shutters
A spatial light modulation device is formed by creating forming an electromagnetic field within a substrate with at least one movable element, fixedly attached to the substrate at a first end, from...
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6268908 |
Micro adjustable illumination aperture
The distribution of ultraviolet light irradiated from an illumination source to optical elements of a projection exposure device is varied by an illumination aperture. The illumination aperture is...
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6252696 |
Subassembly for generating an optically active slit
A subassembly for generating an optically active slit with a changeable slit width s, preferably for slit lamps, with two slit jaws which are displaceable relative to one another at a straight-line...
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6236491 |
Micromachined electrostatic actuator with air gap
A MEMS (Micro Electro Mechanical System) electrostatic device operated with lower and more predictable operating voltages is provided. An electrostatic actuator, an electrostatic attenuator of...
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6229650 |
Optical imaging head having a multiple writing bean source
A method for transferring an image to a medium includes: generating a substantially uniform line of radiation; producing diffractive light from the uniform line of radiation; passing zero order...
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6201631 |
Process for fabricating an optical mirror array
An electro-optic device which includes a mirror array attached to a base substrate is disclosed. The mirror array comprises a substrate having a plurality of spaced-apart mirrors with underlying...
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6201633 |
Micro-electromechanical based bistable color display sheets
A micro-electromechanical bistable shutter display device is provided capable of being implemented for both small screen, high resolution devices and for large billboard-type displays. The...
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6195196 |
Array-type exposing device and flat type display incorporating light modulator and driving method thereof
An array-type exposing device, for exposing an image forming body incorporated in an image forming apparatus, includes a flat light source for emitting a UV rays and a light modulator unit disposed...
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6163643 |
Micro-mechanical variable optical attenuator
An electronically variable optical attenuator includes focusing optics that enable the use of a micro-mechanical actuation device with minute movement properties. The actuation device controls the...
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6158297 |
Surface micromachined counter-meshing gears discrimination device
A surface micromachined Counter-Meshing Gears (CMG) discrimination device which functions as a mechanically coded lock. Each of two CMG has a first portion of its perimeter devoted to continuous...
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6147789 |
High speed deformable mirror light valve
A deformable mirror light valve comprised of an array of silicon nitride ribbons, metalized to reflect light. Each ribbon is electrostatically deformed to form a cylindrical mirror. Each deformable...
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6130771 |
Radiation valve and valve array
A radiation valve includes a transparent substrate and at least one opaque flexible planar member, rigidly attached to the substrate, that alternately assumes a closed orientation relative to the...
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6123985 |
Method of fabricating a membrane-actuated charge controlled mirror (CCM)
A membrane-actuated charge controlled mirror (CCM) that exhibits increased deflection range, reduced beam current and improved electrostatic stability is fabricated using a combination of flat...
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6081249 |
Wrap around membrane color display device
A flat panel color display device is comprised of a two-dimensional array of stacks of colored membranes. Each membrane is comprised of a conductive film sandwiched between colored insulating films...
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6067183 |
Light modulator with specific electrode configurations
A light modulator for modulating a beam of light of wavelength λ including a substrate, a fixed electrode formed over the substrate and arranged to reflect light; an insulative transparent layer...
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6046836 |
Low frequency optical shutter
An optical shutter comprising a frame with an aperture and shutter blade for modulating a light beam or a particle stream passing through the aperture. The top end of the shutter blade comprises a...
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6037719 |
Matrix-addressed display having micromachined electromechanical switches
A display includes a plurality of light-emitting devices arranged as a matrix of pixels and an addressing circuit coupled to each respective light-emitting device. The addressing circuit includes a...
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6031656 |
Beam-addressed micromirror direct view display
A flat-panel direct view display positions an array of electrostatically-actuated cantilevered micromirrors in front of a contrasting background and opposite a flat-panel electron beam source....
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6028691 |
Machine vision
A machine vision apparatus (24) and method are provided which allows imaging by or with the aid of artificial observation devices, such as video cameras, binoculars, telescopes, and other optical...
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6011640 |
High intensity lighting projectors
A high intensity light projector for stage, architectural and similar applications includes a controllable image quality projection gate providing advanced visual effects. The projection gate,...
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6002509 |
Beam scanner for confocal microscopes
A beam scanner is disclosed for confocal microscopes. The beam scanner is provided with a disc-shaped, rotary-driven base unit which largely prevents disruptive optical scattering. The beam scanner...
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5940216 |
Window tinting apparatus
The present invention relates to a window tinting apparatus (10) which comprises an outer window (16A) and an inner window (16B) having a window cavity (16C) there between. The window tinting...
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5912758 |
Bipolar reset for spatial light modulators
A method of resetting the cells of a spatial light modulator (FIG. 11). A saturation voltage pulse is applied, causing the cells to achieve a fully saturated state in a given amount of time. A...
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5910856 |
Integrated hybrid silicon-based micro-reflector
A light reflective device including an insulative substrate; a silicon wafer positioned over the insulative substrate and defining an opening and having a flexible beam portion having top and...
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5905589 |
Light transmittance adjusting apparatus
A light transmittance adjusting apparatus for adjusting a windowpane of an automobile or a building has a fixed member and a movable member arranged in parallel with each other and having a...
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5867302 |
Bistable microelectromechanical actuator
A bistable microelectromechanical (MEM) actuator is formed on a substrate and includes a stressed membrane of generally rectangular shape that upon release assumes a curvilinear cross-sectional...
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5829870 |
Variable headlamp system for an automotive vehicle using an electrostatic shutter
A headlamp system for an automotive vehicle is provided having a light source generating light, a reflector, a generally transparent light shield, an electrostatic shutter and a lens. The light...
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5818623 |
Scanning micro-elements for optical systems
This invention relates to a scanning micro-element for an optical system, characterized in that it comprises: a substrate (12), a membrane (14, 16) made of a dielectric material deposited on a...
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