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8073296 |
Optical device, and virtual image display device
A virtual image display device which displays a two-dimensional image for viewing a virtual image in a magnified form by a virtual optical system. The virtual image display device includes an...
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8023783 |
Optical device, and virtual image display device
A virtual image display device is provided which displays a two-dimensional image for viewing a virtual image in a magnified form by a virtual optical system. The virtual image display device...
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8018636 |
Laminated holographic medium, recording apparatus/method, reproduction apparatus/method for the same and design method of laminated hologram medium
A medium 1, that is a laminated holographic medium of the present invention is composed of two or more core layers 2; 3 or more cladding layers 3 set so as to bind the core layers 2; one or more...
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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...
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7949218 |
Waveguide for heat assisted magnetic recording
An apparatus includes a slider mounted on an arm, a first waveguide including a first core guiding layer, a second waveguide mounted on the slider and including a second core guiding layer having a...
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7934840 |
Optical device and projection system comprising the same
An optical device comprises a light source unit comprising a plurality of light sources, a light mixing unit that is formed on the light source unit and comprises a light guiding part guiding light...
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7915811 |
Organic electrolumescent display
An organic electro luminescent display with auxiliary layers on a cathode contact and an encapsulating junction region to easily remove polymer organic layers of the junction. The organic electro...
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7859731 |
Illumination apparatus for display device using hologram-based light guide plate (LGP)
An illumination apparatus and method for a display device designed such that light is incident on a hologram or hologram pattern at an angle for which diffraction efficiency is the highest. The...
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7845841 |
Angle sweeping holographic illuminator
Light guides of various shapes are configured to adjust the angle of the individual light rays in a bundle of light within the light guide so that the angle of the respective rays are adjusted...
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7815318 |
Projector capable of adjusting brightness and brightness uniformity
A projector capable of adjusting brightness and brightness uniformity includes a light module, a light pipe, a first lens module, a second lens module and an image module. The light module...
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RE41570 |
Distributed optical structures in a planar waveguide coupling in-plane and out-of-plane optical signals
A slab optical waveguide confines in one transverse dimension optical signals propagating in two dimensions therein, and has a set of diffractive elements collectively arranged so as to exhibit...
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7762703 |
Heads-up display, motor vehicle and method of operating a heads-up display
A heads-up display comprises a monochrome display device for generating an image and an optical device for generating a virtual image from the image of the display device. The monochrome display...
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7764413 |
General diffractive optics method for expanding an exit pupil
An exit pupil extender with one input optical element and two exit optical elements disposed on different sides of the input optical element. The exit pupil extender also comprises two intermediate...
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7729748 |
Optical in-vivo monitoring systems
Systems for highly efficient, in-vivo collection of modulated infra-red light are presented. Specifically, these devices are arranged in an important format with a view to integration with a...
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7677733 |
Method of designing a matched light guide for a stereoscopic 3D liquid crystal display
A method of designing a backlight light guide for an autostereoscopic 3D display includes specifying a backlight having a light guide thickness and extractor angle and a light transmission surface...
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7618147 |
Efficient illumination for display systems and in methods for displaying
A display system (100, 200, 300, 350, 400, 450) for displaying an image is described. The display system (100, 200, 300, 350, 400, 450) typically comprises one or a plurality of individual light...
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7616851 |
Tunable wavelength filter device
A tunable wavelength filter device that includes a light wave circuit having an input light wave path, an output light wave path, and a plurality of reflector elements between the input light wave...
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7551818 |
High power optical fiber laser array holographic coupler manufacturing method
A chirped grating is made in a thin film layer or a glass layer for producing a holographic optical element within the layer well suited for use as an optical coupler for coupling side fired laser...
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7530698 |
Positioning device for a projection apparatus
A positioning device for positioning an integration rod module disposed in an optical path between a light source device and a projection lens within a projection apparatus includes a flexible...
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7492524 |
Zoom lens system, imaging apparatus, method for vibration reduction, and method for varying focal length
Providing a zoom lens system with a vibration reduction function, a high zoom ratio, and a wide angle of view, an imaging apparatus, a method for vibration reduction, and a method for varying a...
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7483605 |
Methods for optical attenuation and switching optical beams
Low loss, reliable variable optical attenuators and 1×2 switches and polarization insensitive low loss, reliable variable optical attenuators and 1×2 optical switches are described. In one e...
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7453612 |
Optical device, and virtual image display
An optical device including an optical waveguide upon which a group of parallel light beams different in traveling direction from each other are incident and from which the group of parallel light...
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7440153 |
Backlight unit for flat panel display and flat panel display apparatus having the same
A backlight unit for a flat panel display and a flat panel display apparatus having the same. The backlight unit for a flat panel display includes a light source emitting light, a light guide panel...
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7387389 |
Image display system and method
An image display device includes an image processing unit, a light source assembly, an optical modulator assembly, and a projection lens assembly. The image processing unit is configured to receive...
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7359597 |
Birefringence control in planar optical waveguides
A planar optical waveguide has a set of diffractive elements and confines propagating optical signals in at least one transverse spatial dimension. Each diffractive element set routes, between...
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7324278 |
Black matrix light guide screen display
Provided is a black matrix light guide screen display. In a particular embodiment, provided are a plurality of aligned light guides, each having an input end, a midsection and a magnifying output...
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7292755 |
Optical resonator formed in a planar optical waveguide with a distributed optical structure
An optical apparatus comprises a planar optical waveguide having at least two reflectors. The planar optical waveguide substantially confines in at least one transverse spatial dimension optical...
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7286732 |
Distributed optical structures designed by computed interference between simulated optical signals
An optical apparatus comprises a planar optical waveguide and at least one set of diffractive elements formed in or on the waveguide. The waveguide is arranged to confine propagating optical...
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7268942 |
Method of making a self-aligned light guide screen
Provided is a method of making a self-aligned light guide screen. More specifically, in a particular embodiment, fabrication may commence by providing a first ribbon section of light guides with at...
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7256915 |
Switchable polymer-dispersed liquid crystal optical elements
Transmission and reflection type holograms may be formed utilizing a novel polymer-dispersed liquid crystal (PDLC) material and its unique switching characteristics to form optical elements....
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7227675 |
Hologram recording medium, recording/reproducing apparatus and method therefor
A hologram recording medium in which data is recorded at a high density, the input of a reference beam to an area to which data is not to be recorded of a recording layer is prevented when...
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7224867 |
Holographic spectral filter
Method and apparatus are contemplated for receiving from an input, an optical signal in a volume hologram comprising a transfer function that may comprise temporal or spectral information, and...
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7220005 |
Projection type video display apparatus
An object of the invention is to achieve a high intensity, a compact structure, a cost reduction and a heat radiation of a liquid crystal panel, in a projection type video display apparatus...
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7206107 |
Method and system for beam expansion in a display device
An exit pupil extender wherein the relative amount of different color components in the exit beam is more consistent with that of the input beam. In order to compensate for the uneven amount in the...
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7193755 |
Optical image reader
An optical image reader includes a transparent light guide plate having an object placement surface, an illumination light source for emitting light to an end face of the plate, a holographic...
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7190859 |
Distributed optical structures in a planar waveguide coupling in-plane and out-of-plane optical signals
A slab optical waveguide confines in one transverse dimension optical signals propagating in two dimensions therein, and has a set of diffractive elements collectively arranged so as to exhibit...
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7184627 |
Optical waveguide grating coupler incorporating reflective optical elements and anti-reflection elements
An optical wavelength grating coupler incorporating one or more distributed Bragg reflectors (DBR) or other reflective elements to enhance the coupling efficiency thereof. The grating coupler has a...
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7170142 |
Planar integrated circuit including a plasmon waveguide-fed Schottky barrier detector and transistors connected therewith
A planar integrated circuit includes a semiconductor substrate having a substrate surface and a trench in the substrate, a waveguide medium in the trench having a top surface and a light...
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7116453 |
Optical processor
Method and apparatus are disclosed for optical packet decoding, waveform generation, and wavelength multiplexing/demultiplexing using a programmed holographic structure. A configurable programmed...
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7095537 |
Method and system for optical coupling using holographic recording media
A method for optical coupling comprises: includes providing a holographic recording media fixed relative to at least two optical elements; creating a hologram by transmitting light from each of the...
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7072538 |
Planar reconfigurable optical add/drop module
A reconfigurable optical add/drop module (ROADM) for dynamically adding or dropping various wavelengths of an optical signal without having to physically replace the module with a...
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7042604 |
Self-aligning holographic optical system and related methods
Systems and methods for making a self-aligning optical system are provided, Briefly described, in architecture, one such system for making an optical system, among others, can be implemented as...
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7025461 |
Interactive display system having a digital micromirror imaging device
A display system includes a waveguide optical panel having an inlet face and an opposite outlet face. A projector cooperates with a digital imaging device, e.g. a digital micromirror imaging...
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7026701 |
Schottky barrier photodetectors
A Schottky barrier photodetector comprises a waveguide structure formed by a thin strip of material having a relatively high free charge carrier density, for example a conductor or certain classes...
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7013060 |
Optical cross-connect device
An optic switch for cross-connecting input light signals incoming from inlet fiber cables to outlet fiber cables is disclosed that makes use of a holographic filter (5) having a series of preformed...
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7006266 |
Optical switching devices
The invention provides an optical switcing device, including a substrate having at least one polarization-selective multiplexing grating; at least one polarization-selective demultiplexing grating,...
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6987907 |
Tunable holographic drop filter with quasi phase-conjugate fiber coupling
The present invention is a method and apparatus for a rotating, tunable, holographic drop filter connected to a fiber optic source. The filter uses a quasi phase-conjugate optical system for a...
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6980338 |
Image-reproducing apparatus and image-reproducing method
An optical member 7 is bonded, at its rear side 7b, to a holographic stereogram 6. The front side 7a of the optical member 7 consists of parallel triangular prisms. Illumination light 9 is applied...
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6967755 |
Holographic ROM system including an alignment apparatus for aligning a holographic medium and a mask
A holographic ROM system includes an alignment apparatus for aligning a holographic medium for storing data and a mask with patterns of the data. The alignment apparatus has a beam irradiating unit...
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6956994 |
Method for manufacturing a FBG having improved performances and an annealing-trimming apparatus for making the same
A method for manufacturing a FBG having improved performances and an annealing-trimming apparatus for making the same are provided. The trimming and the annealing steps are advantageously combined...
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