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Match Document Document Title
8879150 Optical thin-film polarizing bandpass filter  
Optical components and their methods of manufacture are provided, including a first stack of layers configured to exhibit a first stop band for s-polarized radiation and a second stop band for...
8867132 Thermochromic filters and stopband filters for use with same  
Thermochromic filters use combinations of absorptive, reflective, thermoabsorptive, and thermoreflective elements covering different portions of the solar spectrum, to achieve different levels of...
8792165 Internally patterned multilayer optical films with multiple birefringent layers  
A reflective film includes interior layers that selectively reflect light by constructive or destructive interference, the layers extending from a first to a second zone of the film. The interior...
8576485 Photo-induced dichroic polarizers and fabrication methods thereof  
A method of forming a polarizing material is provided including exposing a layer of dichroic material to activating light illumination to provide an ordered structure with a distinguished...
8550348 Optoelectronic device  
An optoelectronic device for detecting marks with defined contrast patterns includes a transmitter to emit polarized light beams, a receiver to receive light beams and having an output to produce...
8369014 Polarization independent birefringent tunable filters  
Novel, polarization-insensitive, birefringent, broadband tunable filter arrangements that allow high throughput, based on a combination of tunable birefringent layers or polarization dependent...
8259213 Digital camera and digital camera system  
A digital camera includes: a lens unit that forms a subject image on an imaging plane; an image sensor that includes color filters each disposed at one of pixels disposed in a lattice-like pattern...
8120730 Hybrid polarizer  
A hybrid polarizer includes an absorbing element having a first major surface and a second major surface. The hybrid polarizer also includes a first birefringent reflective polarizer disposed on...
7982955 Birefringent filter using reflective polarizers and dichroic elements  
An optical filter uses two or more reflective polarizers together with retarders to form birefringent filters with controlled transmission. The energy reflected by these polarizers is absorbed by...
7859753 Optical birefringence filters with interleaved absorptive and zero degree reflective polarizers  
A wavelength discriminating optical filter has birefringent retarders stacked between polarizing filters, in relative rotational orientations causing passband wavelengths to emerge in a...
7701633 Prism optical system and image pickup apparatus  
A prism optical system including an optical low-pass filter disposed on an incident side of a luminous flux, and a prism arranged to perform a color separation to a plurality of color bands by an...
7628493 Projector based on tunable individually-addressable Fabry-Perot filters  
A projection system includes a display apparatus comprising a plurality of tunable Fabry-Perot filters, each of the filters being configured for shifting between a state in which the filter...
7626154 Imaging device  
Frequency characteristics of an optical low-pass filter (2) are set in such a way that a first false color passing rate indicative of the rate of frequency components passing through a frequency...
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...
7567382 Optical filter  
An optical filter such that at least one optically anisotropic crystal plate and at least one substrate are stuck together in a state in which a principal face of the optically anisotropic crystal...
7541600 Lithographic and measurement techniques using the optical properties of biaxial crystals  
A method and apparatus for accurately retrieving the position of an optical feature. The method uses the optical properties of biaxial crystals to conically refract the optical feature and...
7488237 Optical filter, production method for this optical filter and optical device using this optical filter and housing structure for this optical filter  
An optical low pass filter is constituted by a quartz birefringent plate a quarter wavelength plate and a quartz birefringent plate layered in that order. Curved chamfered portions are formed at a...
7417796 Wavelength discrimination filter for infrared wavelengths  
An optical comb filter has polarizers placed before and after two or more birefringent elements, each having a fixed retarder and an aligned tunable liquid crystal. The birefringent elements are...
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...
7394188 Phosphor based light source component  
A method of making a light source includes the steps of forming a first optical component having a phosphor material in fixed relation to a first multilayer interference reflector, providing a...
7371329 Method for filtering particles from a fluid  
Methods for filtering particles from a fluid are disclosed, wherein an array of microstructures defining respective microchannels having respective minimum widths are used to separate the fluid...
7362489 Multi-conjugate liquid crystal tunable filter  
A hyper-spectral imaging filter has serial stages along an optical signal path with angularly distributed birefringent retarders and polarizers forming interference filters. The retarders can...
7349089 High transmission multi-wavelength filter and method  
An optical arrangement and method of filtering include a beam splitter that accepts an incident beam and transmits light from the incident beam of a first polarization and reflects light from the...
7286290 Optical illumination apparatus  
An optical illumination apparatus has a polarization conversion device for converting light from a light source into light polarized uniformly in a predetermined manner and an optical integrator...
7268944 Optical interleaver, filter cell, and component design with reduced chromatic dispersion  
An optical interleaver for use in a range of telecommunications applications including optical multiplexers/demultiplexers and optical routers. The optical device includes an optical processing...
7251382 Functional tunable multichannel filter  
Disclosed herein is a functional tunable multichannel filter which is capable of adjusting channel spacing and/or a wavelength location using polarization controllers (λ/2, (λ/4). The functional...
7245432 Dual diffraction-grating device  
A diffraction grating device (100) has both reflecting (108) and transmitting (106) gratings inter leaved to allow both transmission diffraction patterns and reflection diffraction patterns to be...
7227684 Method and system for providing beam polarization  
A radiation polarizer, controller, and a method of radiation polarization and beam control, are disclosed. The radiation polarizer includes a substrate, at least one anti-reflection coating layer...
7206465 All-fiber linear design depolarizer for all-states of polarization  
An all-fiber, all-states of polarization linear design depolarizer is provided. It is made of two polarization combiners (PC1,PC2) with a 2×2 directional coupler (DC) between them. The connections...
7196847 Device and method for an optical tunable polarization interface filter  
The tuner has constituent component for constructing a tunable or switchable spectral filter, including single and multiple stage filters and fitters without intermediate polarizer, over a...
7196797 Differential interferometer with improved cyclic nonlinearity  
An interferometer system includes a plane mirror interferometer, a turning mirror, a retardation plate assembly having a retardation plate that can be adjusted and then fixed, and a...
7195356 Split-path color switching system and method  
The present application describes a retarder stack color switch using a single polarization analyzer for reflective-mode projection displays. The single polarization analyzer permits additive mode...
7173763 Optical interleaver and filter cell design with enhanced clear aperture  
An optical interleaver for use in a range of telecommunications applications including optical multiplexers/demultiplexers and optical routers. The optical device includes an optical processing...
7170678 Optical color separation and synthesis system, and method of constructing optical color separation and synthesis system  
An optical color separation and synthesis system is constructed according to a method, in which four first to fourth polarization beam splitters are arranged in such a manner that polarization...
7164530 Polarizing filter and optical device using the same  
A polarizing filter has a laminate structure: wherein one to four layers of first dielectric thin films 1 and one to four layers of second dielectric thin films 2 are alternately laminated on a...
7154667 Birefringent networks  
A birefringent network can be formed from a pair of beam directing elements that sandwich a birefringent filter. One of the beam director elements can be a polarizing beam splitter and the other...
7145719 Optical cores and projection systems containing the optical core  
LCD projection systems that use reflective LCD imager units commonly use one or more polarization beamsplitters to separate the light incident on the imager from the light reflected by one or more...
7130121 Erbium-doped fiber amplifier and integrated module components  
An EDFA with integrated input and output modules is presented. The integrated input module has a packaged pump laser diode mounted to the metal EDFA package to provide a heat sink for the pump...
7123412 Optical device  
An optical device of the present invention comprises an image sensing device, a package for accommodating the image sensing device, the package including an opening of a square configuration as...
7116848 Optical spectrum analyzer using a diffraction grating and multi-pass optics  
A polarization independent optical spectrum analyzer comprises a diffraction grating, input and output slit means and polarization-maintaining multi-pass optics for directing a light beam to and...
7113337 Multilayer optical coating  
Anisotropic multilayer thin-film coating that may be used in fabrication of various optical elements, such as polarizers, beam splitters, interference-polarizing light filters, polarizing mirrors,...
7106508 Hybrid cell  
The present invention is a hybrid cell that utilizes a PBS pair in conjunction with a wedge tuner and a crystal to achieve a more stable interleaver. A first PBS splits an incoming optical signal...
7106512 Wavelength selective switching device and method for selectively transmitting optical signals based on wavelength  
A wavelength selective switching device and method for selectively transmitting optical signals based on wavelength utilizes diffraction to spatially separate the optical signals of different...
7106509 Filter for enhancing vision and/or protecting the eyes and method of making a filter  
The selective filtering of light by polarization interference may be used to enhance vision and/or protect eyes from harmful light rays. For example, such filtering may be used in sunglasses,...
7102821 Apparatus and system for a re-configurable channel dropping de-multiplexer  
An improved apparatus and system for a re-configurable optical channel dropping de-multiplexer is herein disclosed. A re-configurable channel dropping de-multiplexer in accordance with the present...
7098442 Thin micropolarizing filter, and a method for making it  
A polarizing filter includes a portion with a filtering layer having a plurality of openings extending therethrough, where this portion has a maximum physical thickness in a radiation travel...
7088510 Anti-aliasing optical filter for image sensors  
An anti-aliasing filter includes a polymeric double-refraction plate (“DRP”). The DRP of the anti-aliasing filter has at least a first liquid photo-polymerization (“LPP”) layer disposed on the...
7075719 Optical filter and optical device provided with this optical filter  
Light emitted from a taking lens 20 enters a first birefringent plate 1a to be spatially divided along a first direction extending perpendicular to the direction in which the light advances to...
7038745 Brightness enhancing reflective polarizer  
A multiple layer reflective polarizer 12 is described. This element is placed between and optical cavity 24 and an LCD module 16 to form an optical display. The reflective polarizer reflects some...
7031060 Non-moving parts add/drop device  
The instant invention provides an add/drop device including a wavelength filter, a quarter waveplate disposed on either side of the wavelength filter, and a polarizing beamsplitter disposed on...

Matches 1 - 50 out of 344 1 2 3 4 5 6 7 >