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7570427 |
Geometrical phase optical elements with space-variant subwavelength gratings
A space variant polarization optical element for spatially manipulating polarization-dependent geometrical phases of an incident light beam. The element comprises a substrate with a plurality of...
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7570425 |
System, apparatus and method for high efficiency low leakage LCD polarizer
An apparatus for a liquid crystal display includes a polarizer film configured to receive light from a liquid crystal display and an optical polarizer screen configured to filter light for the...
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7548370 |
Layered structure for a tile wave plate assembly
The present invention relates to an apparatus for polarizing an incident light beam. In embodiments, a tile wave plate assembly is provided. The tile wave plate includes a layered structure having...
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7535640 |
Imaging system for emulation of a high aperture scanning system
An optical imaging system for inspection microscopes with which lithography masks can be checked for defects particularly through emulation of high-aperture scanner systems is provided. The imaging...
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7511886 |
Optical beam transformation system and illumination system comprising an optical beam transformation system
An optical beam transformation system has a sequence of optical elements arranged along an optical axis of the optical beam transformation system and designed for transforming an entrance light...
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7511884 |
Stationary and dynamic radial transverse electric polarizer for high numerical aperture systems
A radial transverse electric polarizer device is provided. The device includes a first layer of material having a first refractive index, a second layer of material having a second refractive...
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7505204 |
Crystallization apparatus, crystallization method, and phase shifter
A crystallization apparatus includes an illumination system which applies illumination light for crystallization to a non-single-crystal semiconductor film, and a phase shifter which includes first...
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7484850 |
Illuminating device and projector
Aspects of the invention can provide an illuminating device and the like capable of efficiently supplying polarized light in a particular oscillation direction and suitable for a projector having a...
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7414786 |
System and method converting the polarization state of an optical beam into an inhomogeneously polarized state
A system for converting the polarization state of an optical beam which propagates along a path from an initial polarization state into an inhomogeneous polarization state includes a first...
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7375888 |
Optical component
An optical component contains two or more hidden images for authentication and antiforgery purposes. The images are successively revealed and concealed when the optical component is held between...
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7375887 |
Method and apparatus for correcting a visible light beam using a wire-grid polarizer
An optical system and method for providing a visible light beam with a desired characteristic includes a visible light source producing a visible light beam defining an optical train. An optical...
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7324280 |
Apparatus for providing a pattern of polarization
A polarization pattern assembly produces a polarization pattern. In an embodiment, a polarization pattern assembly includes a frame that supports a polarization pane in a central region of the...
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7298940 |
Illumination system and display system employing same
A compact, light weight, efficient and cost-effective illumination system for optical displays is disclosed. The illumination system is capable of producing a self-luminous light beam of selected...
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7297393 |
Optical film
Birefringent optical films have a Brewster angle (the angle at which reflectance of p-polarized light goes to zero) which is very large or is nonexistent. This allows for the construction of...
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7256937 |
Structured polarizer and method for making the same
A structured polarizer (linear polarizing filter) with side-by-side in a plane (lateral) regions having different polarization directions, complete extinction and complete transparency, is...
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7221508 |
Reflex-type screen
The reflex-type screen includes an aluminum film reflecting layer for reflecting incident light, a lower adhesive layer which is made of adhesive agent, a polarization layer for transmitting the...
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7192425 |
Laser treatment apparatus
A laser treatment apparatus comprises: an optical guiding body which guides a treatment laser beam omitted from a laser source; an irradiation optical system for irradiating the treatment beam...
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7186968 |
Polarization sensitive solid state image sensor including integrated photodetector and polarizing assembly and associated methods
A polarization sensitive solid state image sensor includes an integrated photodetector and polarizing assembly. The polarizing assembly is formed directly on an upper dielectric surface of the...
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7147903 |
High efficiency optical devices
Optical devices such as backlight assemblies, according to the present invention include a multilayer optical film in which at least one of the layers comprises an oriented birefringent polymer....
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7133619 |
Polarization mode dispersion compensation module
An operation unit of a PMD compensation module includes a PBS (polarization beam splitter), a compensating part and a combiner. The PBS separates an optical input into a first polarized signal and...
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7079245 |
Method and apparatus for detecting gap of liquid-crystal panel and apparatus therefor
Light from a light source 10 is linearly polarized by a polarizer 11. Then it propagates via a half-mirror 12 almost parallel to the normal to a reflective liquid-crystal panel 13 and falls...
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6992822 |
Projection display system using a diffuse reflecting polarizer
In one embodiment, a projection screen includes a diffuse reflecting polarizer that diffusively reflects light polarized in a first direction and transmits light polarized in a second direction....
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6987256 |
Polarized semi-active laser last pulse logic seeker using a staring focal plane array
An improvement in a semi-active laser last pulse logic missile seeker is disclosed and claimed. In one embodiment, the improvement includes a first polarizer disposed in the detection field of view...
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6910771 |
Polarized light converting device and method
An integrally-formed polarized light converting device of a projection display unit comprises a medium of a predetermined thickness converting incident light entering at the Brewster Angle into...
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6885502 |
Radial polarization-rotating optical arrangement and microlithographic projection exposure system incorporating said arrangement
An optical arrangement is disclosed wherein an entering beam is converted into an exiting beam having a total cross section of light which is linearly polarized essentially in the radial direction...
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6881454 |
Substantially colorless and optically anisotropic material
A substantially colorless and optically anisotropic material is obtained from substantially colorless and optically anisotropic micelles. The micelles are oriented in a definite direction. The...
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6785050 |
Corrosion resistant wire-grid polarizer and method of fabrication
A polarizing device, such as a wire-grid polarizer, includes a substantial mono-layer of a corrosion inhibitor without adversely affecting the optical properties of the polarizing device. The...
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6764181 |
Polarization arrangement
A tilted polarization splitter ( 13 ) for use with a projection lens ( 15 ) and a light modulating panel ( 11 ) is provided. The polarization splitter has an ultra thin substrate ( 14 ) whose...
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6721078 |
Switchable interleaved channel separator devices and systems
The present invention provides an improved switchable interleaved channel separator device. The switchable interleaved channel separator device utilizes an adjustable reflective non-linear...
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6666944 |
Method of manufacturing optical filter
The present invention has an object to provide a manufacturing method of readily realizing an optical filter having a flat transmission characteristic and a superior cutoff characteristic relative...
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6646801 |
Glare reduction system and method
A system and method for reducing glare is provided in accordance with the present invention. The system may include a first polarizer transmitter for filtering light from a source, and a second...
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6641883 |
High efficiency optical devices
Optical devices such as light pipes which incorporate multilayer optical films in which the refractive indices of two adjacent layers in the thickness direction are substantially matched or are...
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6639719 |
System and method for using multiple beams to respectively scan multiple regions of an image
An image system includes a screen and a beam generator. The screen has first and second regions with adjustable brightness levels. The beam generator directs first and second electromagnetic off...
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6585378 |
Digital cinema projector
A digital cinema projector ( 100 ) for projection of color images onto a display surface comprises a light source ( 116 ), which produces a beam of light. Beam-shaping optics ( 130 ) homogenize and...
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6552850 |
Device, method, and system of display for controlled viewing
The present invention provides a device, method, and system for secure viewing and use of banking and other electronic access devices. The present invention comprises a computer/video display...
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6496287 |
Optical identification element
An optical component in the form of an identification element (such as for counterfeit protection or copy protection) includes an optically anisotropic layer comprising regions of different optical...
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6481851 |
Adjustable contrast reflected display system
A transparent-reflective display constructed to be alterable so that reflected images are viewed upon a transparent surface that can alter to a darkened surface, thereby changing contrast of the...
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6414790 |
Polarized non-rotating variable light transmitting window
A window whose light transmission can be mechanically controlled and varied smoothly from a high value of approximately 40% to a low value of approximately 1% is achieved without the requirement of...
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6384971 |
Methods for manufacturing micropolarizers
A method of mass producing a micropolarizer including the steps exposing films of predetermined polarization states to electromagnetic radiation through masks of predetermined patterns, etching...
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6368760 |
Phase sheet
The phase sheet includes a first region and a second region which have respectively different slow axis directions or fast axis directions. A polymer constituting the sheet contains a photoisomeric...
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6343228 |
Method and apparatus for fluorescence imaging of tissue
Fluorescence imaging of tissue is used as a diagnostic tool in which geometric effects and specular reflections are compensated for by normalizing a fluorescence image with a cross-polarized image.
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6301044 |
Apparel color and image effect system
A system for producing a visual effect at a surface of apparel worn by a performer including: a latent image projector which projects light comprising polarizer-encoded latent visual information,...
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6275291 |
Micropolarimeter and ellipsometer
A micropolarimeter and ellipsometer for obtaining complete optical information of superficially illuminated specimens. A compact construction is designed to facilitate their use. To obtain the...
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6252712 |
Optical system with polarization compensator
An optical system with at least one optical element that causes a disturbance of the distribution of polarization over the cross section of a light beam wherein at least one birefringent optical...
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6069737 |
Optical arrangement with a diffractive optical element
An optical arrangement, in particular for use as a transmitting and/or receiving optical system in optoelectronic sensors, comprises at least one diffractive optical element integrated into...
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6067193 |
Polarization device and projection type display apparatus
A polarization device comprises: a light source; a first lens plate including a plurality of lenses in a planar configuration that divides light emitted from the light source into beams defined by...
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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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5854710 |
Optical fourier processing
The invention relates to systems and methods for optical Fourier processing and logic operations based on the discovery that the photoinduced anisotropy of photochromic materials such as...
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5844717 |
Method and system for producing micropolarization panels for use in micropolarizing spatially multiplexed images of 3-D objects during stereoscopic display processes
A method of mass producing a micropolarizer including the steps exposing films of predetermined polarization states to electromagnetic radiation through masks of predetermined patterns, etching...
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5841581 |
Method and apparatus for making a spatially selective high resolution light filter
A method and apparatus that bonds two orthogonally polarized plastic films into a single sheet, self aligned, orthogonally polarized filter. A laser heats regions of the films to depolarize...
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