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7453641 |
Structures and methods for reducing aberration in optical systems
An optical system includes at least one cubic crystalline optical element aligned along an optical axis, the at least one cubic crystalline optical element being birefringent and imparting...
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7450231 |
Deviation angle self compensating substantially achromatic retarder
A substantially achromatic multiple element compensator system for use in wide spectral range (for example, 190-1700 nm) rotating compensator spectroscopic ellipsometer and/or polarimeter systems....
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7443585 |
Polarizer, polarization light source and image display unit using them
A polarization component, capable of efficiently reflecting an obliquely transmitted light beam toward a light source without degrading the transmission-polarization property of a perpendicular...
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7440075 |
Birefringent optical system
The invention relates to an optical system comprising a fluid chamber 1 and a birefringent part. The fluid chamber comprises first and second fluids 10, 12 having different indices of...
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7418202 |
Article having a birefringent surface and microstructured features having a variable pitch or angles for use as a blur filter
An optical low pass filter or blur filter, and method of making the filters, using an article having a birefringent surface for refracting incoming light when used with an image sensor. The...
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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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7413317 |
Polarized UV exposure system
A light exposure system is used to expose an alignment layer formed of anistropically absorbing molecules so as to allow alignment of subsequently applied liquid crystal polymer (LCP) molecules....
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7400448 |
Birefringent spectral filter
A birefringent spectral filter comprises a first birefringent stage and a polarizing beam splitter optically coupled to the first birefringent stage. The first birefringent stage is adapted to...
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7382535 |
Wave plate and associated method
An improved wave plate and associated method are provided. The wave plate includes a plurality of layers of uniaxial crystal including at least one layer of positive uniaxial crystal and at least...
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7381339 |
Increased yield of cubic crystalline optical elements by crystal orientation
Increased yield of optical elements from cubic crystal rods, such as made of calcium fluoride, is made possible by orienting the optical elements for supporting the propagation of light along one...
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RE40251 |
Optical element, polarization illumination device, and projector
Two polarization conversion element arrays are disclosed. Each polarization conversion element array is composed of a plurality of polarization conversion elements for converting light incident...
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7362504 |
Miniature circulator devices and methods for making the same
Miniature optical devices, including circulator array devices, are fabricated using thin film coating technology. A typical optical device includes two refraction elements arranged opposite each...
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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...
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7360899 |
Beamsplitting structures and methods in optical systems
Various embodiments involving structures and methods for illumination can be employed, for example, in projectors, head-mounted displays, helmet-mounted displays, back projection TVs, flat panel...
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7359584 |
Polarization beam separator and combiner
The present invention relates to a device for use in a fiber optic system that may be a communication system, a sensing system or other system using guided-wave optical components. Reducing the...
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7359119 |
Optical arrangement for pre-processing primary illumination light
An optical arrangement for pre-processing primary illumination light is proposed, wherein a provided spectral processing section (P) comprises a multi-prism assembly ( 10 ) consisting of a...
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7357510 |
Projection-type 3-D image display device using single projector
A projection-type 3-D image display device includes a single display element, a polarization conversion switch, a first image shifter, a second image shifter, a projection lens unit, a mirrored...
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7355791 |
Optical system and photolithography tool comprising same
An optical system, for example a lens for a photolithography tool, includes a group of optical elements (L 1 , L 2 ) that each comprise a birefringent cubic crystal such as CaF 2 . The crystal...
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7354162 |
Projector
A projector includes: a light source device that emits substantially parallel illumination light; a first lens array having a plurality of first small lenses each of which divides the illumination...
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7343057 |
Integratable optical isolator in a Mach-Zehnder interferometer configuration
A method of operating an optical isolator having first and second optical splitter-combiners disposed within a semiconductor die. The optical splitter-combiners are coupled together into an...
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7335874 |
Method and apparatus for generating a circularly polarized illumination beam
A method and apparatus for illuminating a subject with deep UV light and detecting 2-dimensional image information, e.g., a transmission image, fluorescence image, reflected light image, etc. The...
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7334900 |
Three-dimensional image projecting apparatus
The invention provides a three-dimensional image projecting apparatus. The three-dimensional image projecting apparatus comprises a light signal generator, a filter device, a focusing device and a...
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7327518 |
Attenuator for high-power unpolarized laser beams
A method for attenuating an unpolarized laser beam includes separating the laser beam into two plane-polarized beams. The plane-polarized beams are polarization rotated. Each of the...
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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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7321464 |
Electroluminescent light source and display incorporating same
A brightness enhanced reflective polarizer includes a reflective polarizer and a structured surface material.
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7319558 |
Wide-band wave plate and a controlling method thereof
A wide-band wave plate having at least two wave plates, each of which has a microstructure to generate a phase difference, the microstructure having a cycle not shorter than 1/n min of a shortest...
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7317539 |
Polarizing beam splitter device, interferometer module, lithographic apparatus, and device manufacturing method
The invention relates to a polarizing beam splitter device, an interferometer module system, a lithographic apparatus, and a device manufacturing method. The polarizing beam splitter device...
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RE39951 |
Polarization conversion element, polarization illuminator, display using the same illuminator, and projector
A polarizing conversion device in accordance with the invention includes a first optical element for condensing an incident beam and forming a plurality of intermediate beams spatially separated...
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7312924 |
Polarizing multiplexer and methods for intra-oral scanning
A polarizing multiplexer includes a first arm with a first beam splitter to receive a first unpolarized light from an object and a first retarder coupled to the first beam splitter to generate a...
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7295371 |
High efficiency electromagnetic beam projector, and systems and methods for implementation thereof
This invention relates to electromagnetic wave beam paths, formation of the beam, illumination of programmable electromagnetic wave field vector orientation rotating devices (“PEMFVORD”) with...
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7286289 |
Surveillance window
A surveillance window including at least one set of linear polarizer and quarter-waveplate and a reflecting surface. The surveillance window appears dull and opaque to a subject, while allowing a...
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7280275 |
High efficiency beam distribution with independent wavefront correction
A beam distribution apparatus includes a stack of parallelogram prisms and beam-splitting coatings each located between opposing parallel faces of adjacent parallelogram prisms. The stack is...
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7278743 |
Single panel illumination system and projection display apparatus using the same
The present invention provides an illumination system and projection system using the same. The present invention can eliminate the reflective light on the internal optical surface of the optical...
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7274510 |
Circulator and polarization beam combiner
System and techniques for reducing the polarization dependency of an optical component by combining the actions of a circulator and a polarization beam combiner to separate an optical signal into a...
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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...
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7260281 |
Integratable optical isolator in a Mach-Zehnder interferometer configuration
An optical isolator includes first and second optical splitter-combiners disposed within a semiconductor die. The optical splitter-combiners are coupled together into an interferometer...
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7259914 |
Attenuator for high-power unpolarized laser beams
A method for attenuating an unpolarized laser beam includes separating the laser beam into two plane-polarized beams. The plane-polarized beams are polarization rotated. Each of the...
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7258445 |
Polarization splitter, optical unit and image projector
A polarization splitter includes first and second glass members, and a polarization splitting layer and an adhesive layer arranged between the first and second glass members, wherein the...
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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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7253956 |
Optical isolator element, a method for producing such an element, and an optical isolator using such an element
An optical isolator is constructed such that an optical isolator element in which at least one flat Faraday rotator and at least two flat polarizers are bonded to each other into an integral unit...
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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...
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7242517 |
Optical devices comprising series of birefringent waveplates
Bidirectional isolating devices including non-reciprocal rotators (i.e. Faraday rotators) and wavelength selective reciprocal polarization rotators are disclosed. Each wavelength selective rotator...
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7232223 |
Illumination optical system and projection display optical system
An illumination optical system is disclosed, which provides a luminous flux with a small incident angle on an illumination surface in one axis direction on a section of the luminous flux. The...
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7227686 |
Tunable PMD emulators and compensators
Tunable PMD emulators and compensators for producing different PMD profiles with an adjustable average DGD value.
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7218451 |
Integrated optical multiplexer and demultiplexer
Optical multiplexers and demultiplexers are provided. In one implementation an apparatus is provided. The apparatus includes a first laser diode pair, a second laser diode pair, a polarization...
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7218447 |
Diamond-like carbon film and method for qualitatively transforming diamond-like carbon film
A diamond-like carbon (DLC) film having refractive indices distributed in a pattern oriented within the plane of the film or on a bias with respect to the thickness of the film. Such films may be...
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7206466 |
Polarization dependent loss loop
A system and method for reducing polarization dependent loss in optical circuits is disclosed. The system includes a first optical device having an output, and a polarization controller optically...
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7206060 |
Illumination optical system, exposure apparatus, and device fabrication method with a polarizing element and an optical element with low birefringence
An illumination optical system for illuminating a target surface using light from a light source, said illumination optical system includes a polarizing element that is arranged in an optical path...
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7199936 |
Method and apparatus for polarizing electromagnetic radiation
According to one aspect of the invention, a method and apparatus for polarizing electromagnetic radiation is provided. The electromagnetic radiation may be divided into first and second portions,...
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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...
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