Matches 1 - 50 out of 248 1 2 3 4 5 >


Match Document Document Title
9014518 Bearing monitoring using a fiber Bragg grating  
A bearing comprises a Bragg grated optical fiber to measure one or more parameters of the bearing. The optical fiber is coupled to the bearing in such a way that at least a part of the optical...
8976450 Optical light switch having two internally located diffraction gratings separated by liquid medium  
A light switch (or valve) made up of two mutually inverted, substantially identical diffraction gratings with a liquid medium therebetween, arranged to allow the grating substrates to be shifted...
8965152 Waveguides  
A projection display 210 arranged to display an image to an observer 212 use waveguide techniques to generate a display defining a large exit pupil at the point of the observer 212 and a large...
8854596 Active optical device employing refractive index variable regions  
An active optical device includes a substrate; a plurality of refractive index variable regions formed on the substrate; and a voltage applier which applies an electric field to the plurality of...
8842363 Dynamically varying an optical characteristic of light by a sub-wavelength grating  
An apparatus for dynamically varying an optical characteristic of a light beam includes an optical element configured to receive a beam of light. The optical element includes at least one...
8811823 Dynamic optical devices  
The invention provides an optical device, including a light-transmissive substrate, and a pair of different, parallel gratings including a first grating and second grating, located on the...
8808586 Molded part and optical device using the molded part  
A molded part prepared by a mold transfer method using a die, including a surface which includes a slope, wherein a direction of a normal line of the slope is different from a die releasing...
8743460 Diffractive optical element and method for manufacturing same  
An element includes a first resin layer and a second resin layer disposed between a first glass lens substrate and a second glass lens substrate, a boundary surface between the first resin layer...
8717676 Light outcoupling structure for a lighting device  
A diffractive light outcoupling unit for forming a part of a directive light outcoupling system of a lighting device including a plurality of diffractive outcoupling units. The diffractive light...
8699137 Agile optical phased array device and applications  
A device that provides light beam switching, agile steering of the light beam over a range of angles, and generation of arbitrary wavefront shapes with high spatial and temporal resolution. The...
8687277 Stacked-grating light modulator  
A “Stacked-Grating Light Modulator” (“SGLM”) comprises two diffraction grating elements, a reflection grating and a transmission grating, in close parallel proximity. An incident beam transmits...
8681423 Light modulation employing fluid movement  
A light modulator includes a light guide to guide light, a diffraction grating at a surface of the light guide, and a fluid having a refractive index substantially matched to a refractive index of...
8681424 Diffractive optical element containing grating surface and grating wall surface, and optical system having the same  
A diffractive optical element has higher diffraction efficiency of diffracted light of a designed order in a visible wavelength range. The diffractive optical element includes a diffraction...
8593562 Optical aliasing filter, pixel sensor arrangement and digital recording device  
A refraction at a suitably structured surface for example with an arrangement of the same between image plane and mapping optics is used to realize on the one hand a desired aliasing filtering or...
8537310 Polarization-independent liquid crystal display devices including multiple polarization grating arrangements and related devices  
A liquid crystal device includes a first polarization grating (101), a second polarization grating (102), and a liquid crystal layer (103). The first polarization grating (101) is configured to...
8500805 Method for manufacturing aphakic intraocular lens  
A method of manufacturing an aphakic intraocular lens that is capable of ensuring every multi-focusing effect more securely, while reducing the impact of aperture changes and lens eccentricity. At...
8498053 Spatial light modulator using electrowetting cells  
A spatial light modulator for modulating light field amplitude comprises a surface relief grating adapted to act as a diffractive lens, where a material is used to fill at least one groove of a...
8488646 HCG reflection enhancement in diverse refractive index material  
Enhanced reflectivity High-Contrast Gratings are described which operate in different medium. An HCG is described with a deep/buried metallization layer separated at a distance of least three to...
8405900 Projection apparatus  
There is provided a projection apparatus including a light source, a micromirror element which tilts a plurality of micromirrors arranged in an array +A° or −A° (A>0) separately from an array...
8369017 Optical pulse shaping method and apparatus  
The invention disclosed here teaches methods and apparatus for altering the temporal and spatial shape of an optical pulse. The methods correct for the spatial beam deformation caused by the...
8363298 Diffraction gratings with tunable efficiency  
The specification and drawings present a new method, apparatus and software product for modulation of the optical intensity using electro-wetting (EW) diffraction gratings in the electronic...
8314990 Film having a reflective layer with at least one pigmented lake layer, process for the production thereof and use  
A film (1) which includes at least one transparent replicating layer (2) having a diffractive relief structure (3) and a reflective layer, the reflective layer being formed by at least one...
8306376 Method and apparatus for multiplexing optical information for recording and reproducing optical information over optical storage medium  
There is provided an optical multiplexer including: a substrate having a plurality of beam transmitting portions; and diffraction gratings diffracting beams irradiated to the beam transmitting...
8274738 Space-variant polarization manipulation of thermal emission  
A method for Space-variant polarization manipulation of enhanced nondirectional thermal emission in a narrow spectral peak is disclosed, comprising providing a subwavelength grating irradiating...
8270080 Diffractive optical element and method for manufacturing same  
An element includes a first resin layer and a second resin layer disposed between a first glass lens substrate and a second glass lens substrate, a boundary surface between the first resin layer...
8264936 Diffractive optical element, objective optical system including the same, and optical pickup including the same  
A diffractive optical element includes a first optical part and a second optical part bonded to each other with a bonded surface therebetween configured as a diffraction surface. In this...
8238027 Security element provided in the form of a multilayered film body  
A security element in the form of a multi-layer film body with a security element and a process for the production of such a security element. The film body has a replication lacquer layer and a...
8228129 Photonic crystal resonant defect cavities with nano-scale oscillators for generation of terahertz or infrared radiation  
A thermally powered source of IR or THz radiation combines low dimension nano-scale oscillators such as nano-wires and nano-tubes with micro-scale photonic crystal resonant defect cavities for...
8218239 Light-diffusing grating  
The invention relates to a transparent substrate comprising at its surface a grating of lines of at least 200 light-diffusing elements, said elements being separated by domains with a different...
8106993 Diffractive imaging lens, diffractive imaging lens optical system, and imaging apparatus using the diffractive imaging lens optical system  
A diffractive imaging lens 10 includes a surface on which a diffraction grating pattern is formed. The diffraction grating pattern is formed of a plurality of steps formed concentrically with an...
8072684 Optical device using laterally-shiftable diffraction gratings  
A double-sided grating divider acts as a light switch where the upper and lower grating dividers are arranged to accommodate a relative lateral shift therebetween of about one-fourth of the period...
8014050 Agile holographic optical phased array device and applications  
A device that provides light beam switching, agile steering of the light beam over a range of angles, and generation of arbitrary wavefront shapes with high spatial and temporal resolution. The...
8009356 Tunable surface plasmon devices  
A tunable extraordinary optical transmission (EOT) device wherein the tunability derives from controlled variation of the dielectric constant of a semiconducting material (semiconductor) in...
8000001 Method of forming polymeric microarray support  
The invention comprises a polymeric microarray support (1) for an optical assay arrangement (2) comprising optical means (3, 4, 6) for detection of light emitted from the support. The microarray...
7986605 Optical pickup and optical disc apparatus using the same  
An optical pickup includes a light source emitting a light beam, an objective lens condensing the light beam emitted from the light source onto an optical disc, at least one divergent angle...
7972004 System and method for uniform light generation  
A system and method for uniform light generation in projection display systems. An illumination source comprises a light source to produce colored light, and a scrolling optics unit optically...
7940457 Energy-efficient optoelectronic smart window  
In an aspect, described herein is a dynamically controllable optoelectronic smart window which utilizes a diffraction grating for selective transmission or rejection of a specific region of the...
7903337 High contrast grating light valve  
A grating light valve is provided with a plurality of spaced reflective ribbons, spatially arranged over a semiconductor substrate, the ribbons and substrate being provided with reflective...
7864426 High aspect-ratio X-ray diffractive structure stabilization methods and systems  
A method to stabilize planar nanostructures, for example grating and zone plate lenses that are typically used for directing or focusing x-ray radiation, includes the deposition of a top,...
7843638 Optical system for light flux transfer, and retinal scanning display using such an optical system  
The present invention provides an optical system that can reduce the occurrence of aberration, and a scanning retinal display that uses such an optical system. A first diffraction section and the...
7801008 Diffractive optical element, objective optical system including the same, and optical pickup including the same  
A diffractive optical element includes a first optical part and a second optical part bonded to each other with a bonded surface therebetween configured as a diffraction surface. In this...
7746558 Method for producing grating images  
A method for producing a grating image, which has at least one grating field recognizable with the naked eye, in which are disposed grating elements, which are produced by a writing apparatus. In...
7738173 Optical safety element and system for visualising hidden information  
The invention concerns an optical security element and a system for visualising items of concealed information comprising such an optical security element. The optical security element has a...
7729052 Non-planar optical diffraction grating having an arbitrary parallel groove profile  
An optical diffraction grating having a superior ultra-precise non-planar surface shape desired in extremely sensitive and complex optical imaging devices (e.g. spectrometers or hyperspectral...
7724298 Image processing system and method for pick up and display of an object including division of an optical image of the object into a spectrum  
The present invention relates to an image processing system and an image processing method, an image pickup apparatus and an image pickup method, and an image display device and an image display...
7679826 Diffractive, polarization modulating optical devices  
An optical device includes an encoding surface having a micro-relief pattern (22) over at least part thereof designed to produce a predetermined diffracted first image when illuminated in use, and...
7679825 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Optical safety element and system for visualising hidden information
 
The invention concerns an optical security element and a system for visualising items of concealed information comprising such an optical security element. The optical security element has a...
7630135 Two-dimensional blazed MEMS granting  
A method for assuring a blazed condition in a DMD device used in telecommunications applications. By meeting certain conditions in the fabrication and operation of the DMD, the device can achieve...
7619820 Dot matrix holograms with spatially varying period  
A diffractive unit which can reduce the effect of the nonlinearity of the photo-resist recording material to produce a diffractive device with brilliant color, and describes a method for...
7595931 Grating for EUV lithographic system aberration measurement  
A grating includes an absorptive substrate and a plurality of reflective lines on the absorptive substrate. Each reflective line is formed by a plurality of reflective areas. The reflective areas...

Matches 1 - 50 out of 248 1 2 3 4 5 >