Having Polarizing Element Patents (Class 359/352)
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Patent number: 8755113Abstract: An inorganic, dielectric grid polarizer device includes a stack of film layers disposed over a substrate. Each film layer is formed of a material that is both inorganic and dielectric. Adjacent film layers each have different refractive indices. At least one of the film layers is discontinuous to form a form-birefringent layer with an array of parallel ribs having a period less than 400 nm. Another layer, different than the form-birefringent layer, is formed of an optically absorptive material for the ultra-violet spectrum.Type: GrantFiled: June 22, 2007Date of Patent: June 17, 2014Assignee: Moxtek, Inc.Inventors: Eric Gardner, Bin Wang, Mark Davis, John D. Dredge, Jr.
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Publication number: 20140160404Abstract: A display device for outdoor use has a display unit, and the display unit includes a polarizing plate having a light absorbing layer and a polarizer layer on a viewing side surface, the light absorbing layer includes a first light absorbing agent having at least one absorption peak in a wavelength range of from 280 to less than 360 nm and a second light absorbing agent having at least one absorption peak in a wavelength range of from 360 to 400 nm, and the light absorbing layer is disposed closer to the viewing side than the polarizer layer.Type: ApplicationFiled: December 10, 2013Publication date: June 12, 2014Applicant: FUJIFILM CORPORATIONInventors: Naoyoshi YAMADA, Yu NAITO, Nobutaka FUKAGAWA, Aiko YOSHIDA, Yukie WATANABE
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Publication number: 20140139911Abstract: A Faraday rotator is formed of a class of semiconductor materials of low free carrier density wherein, in the presence of a suitable magnetic field, interband transition Faraday rotation is opposite in sign from free carrier effect Faraday rotation and interband transition Faraday rotation predominates over free carrier effect Faraday rotation such that net Faraday rotation can remain nearly unchanged over broad IR spectral regions where the short wavelength limit is typically near the bandgap absorption. Thus, the class of semiconductors meeting these conditions can function as high performance broadband optical isolators in the infrared. Suitable materials include InAs of suitable purity.Type: ApplicationFiled: November 6, 2013Publication date: May 22, 2014Applicant: Electro-Optics Technology, Inc.Inventor: Amir A. Jalali
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Publication number: 20140139910Abstract: The disclosure is directed to an element that is capable of acting as both an optical polarizer and an optical attenuator, thus integrating both functions into a single element. The element comprises a monolithic or one piece glass polarizer (herein also call the “substrate”), a multilayer “light attenuation or light attenuating” (“LA”) coating that has been optimized for use at selected wavelengths and attenuations deposited on at least one polarizer facial surface, and a multilayer anti-reflective (AR) coating on top of the LA coating. The disclosure is further directed to an integrated optical isolator/attenuator comprising a first and a second polarizing elements and a Faraday rotator for rotating light positioned after the first polarizing element and before the second polarizing element, the integrated optical isolator/attenuator both polarizing and attenuation a light beam from a light source.Type: ApplicationFiled: November 1, 2013Publication date: May 22, 2014Applicant: CORNING INCORPORATEDInventors: RACHID GAFSI, Jue Wang
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Publication number: 20140133013Abstract: An optical component including: a first substrate body which is made of a platy member allowing infrared laser beam to be transmitted therethrough and having a refractive index of 2 to 4 with respect to the infrared laser beam, and which has an input surface where the infrared laser beam is incident, and an inclined surface inclined to the input surface at an angle of inclination, calculated in accordance with Formula (I): n(?)×sin ?(?)=1×sin(x)??(I) and formed with a transmitting phase retarding film that shifts a phase of the infrared laser beam; and a second substrate body which is made of the platy member and which has an output surface from which the infrared laser beam is emitted, and an inclined surface inclined at the angle of inclination to the output surface and formed with the transmitting phase retarding film. The inclined surfaces of both substrate bodies are arranged as opposed to each other so as to have a space therebetween.Type: ApplicationFiled: November 13, 2013Publication date: May 15, 2014Applicants: Sumitomo Electric Industries, Ltd., Sumitomo Electric Hardmetal Corp.Inventors: Hiromi IWAMOTO, Kunimitsu YAJIMA
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Publication number: 20140133014Abstract: The present invention relates to a borate birefringent crystal applicable to ultraviolet (UV) or deep ultraviolet (DUV) range, with chemical formula of Ba2Mg(B3O6)2. The borate birefringent crystal belongs to a trigonal system, with space group of R-3 wherein a=0.70528(3) nm, c=1.65520(9) nm and Z=12. The barium magnesium borate birefringent crystal is negative uniaxial (ne<no) with a birefringence of 0.077-0.229 and a transmission range of 177-3000 nm. The crystal is easy to cut, grind, polish, and preserve, and is stable in air and is not easy to deliquesce. The barium magnesium borate birefringent crystal can be grown by the Czochralski method, flux method or the method of spontaneous crystallization from a melt, and has larger birefringence (no?ne=0.077-0.229). The crystal has important applications in the fields of optics and communications, e.g. for fabricating the polarizing beam splitter prism.Type: ApplicationFiled: February 17, 2012Publication date: May 15, 2014Inventors: Rukang Li, Yingying Ma
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Patent number: 8724082Abstract: A semiconductor laser driver includes a light detection circuit to detect a quantity of light as a detected light emission intensity and output the detected light emission intensity to the control circuit, and a control circuit to control a light emission intensity for the semiconductor laser based on the detected light emission intensity and on a predetermined light emission intensity setting value. The light detection circuit includes a photoelectric conversion element to convert the quantity of light emitted from the semiconductor laser into an electrical current and output the converted electrical current, a current magnification setting circuit to amplify the electrical current output from the photoelectric conversion element to a predetermined amplified current at one of multiple different predetermined magnifications, a detection resistor to convert the amplified current output from the current magnification setting circuit into a voltage and output the voltage as the detected light emission intensity.Type: GrantFiled: March 4, 2011Date of Patent: May 13, 2014Assignee: Ricoh Company, Ltd.Inventor: Hiroaki Kyogoku
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Publication number: 20140111849Abstract: A polarizer may be flexibly mounted within a frame to yield. The polarizer may then be handled, within the frame, without directly contacting the polarizer. A plurality of such frame-mounted polarizers may be combined in a tray in which they are aligned to form a mosaic polarizer that may be configured as a one-dimensional, linear, polarizer array or a two-dimensional, rectangular, polarizer array.Type: ApplicationFiled: March 15, 2013Publication date: April 24, 2014Inventors: Deng Xuegong, Shiaw-Wen Tai, Denis Pristinski, Atsuo Kuki
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Patent number: 8705168Abstract: According to an aspect of an embodiment, an apparatus includes an optical branching unit for branching an input signal light in four directions, a polarization component extraction unit extracting four polarization components having mutually different polarization parameters from lights branched in four directions by the optical branching unit, and a determination unit determining input/non-input of the signal light based on the four polarization components extracted by the polarization component extraction unit.Type: GrantFiled: May 21, 2012Date of Patent: April 22, 2014Assignee: Fujitsu LimitedInventors: Masahiro Yuki, Kentaro Nakamura, George Ishikawa
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Publication number: 20140104519Abstract: Provided is a polarizer whereby screen brightness does not become zero regardless of the direction in which a viewer faces when the polarizer is used in a liquid crystal display device capable of displaying three-dimensional images, in which three-dimensional images are visible through a polarizing filter. The polarizer comprises a polarizing film and protective films disposed on both sides of the polarizing film; at least one of the protective films being an oriented film; and the tilt of the orientation axis of the oriented film or an axis orthogonal to the orientation axis relative to the polarization axis of the polarizing film being 1° or more and less than 45°.Type: ApplicationFiled: May 16, 2012Publication date: April 17, 2014Applicant: TOYOBO CO., LTD.Inventors: Kouichi Murata, Yoshitomo Ikehata
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Patent number: 8687274Abstract: While gold wire grids have been used to polarize infrared wavelengths for over a hundred years, they are not appropriate for shorter wavelengths due to their large period. With embodiments of the present invention, grids with periods a few tens of nanometers can be fabricated. Among other things, such grids can be used to polarize visible and even ultraviolet light. As a result, such wire grid polarizers have a wide variety of applications and uses, such as, e.g., in the fabrication of semiconductors, nanolithography, and more.Type: GrantFiled: October 31, 2006Date of Patent: April 1, 2014Assignees: Kabushiki Kaisha Toshiba, Princeton UniversityInventors: Koji Asakawa, Vincent Pelletier, Mingshaw Wu, Douglas H. Adamson, Richard A. Register, Paul M. Chaikin, Young-Rae Hong
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Patent number: 8670177Abstract: A multifunctional polarizing filter is used for a digital camera, and is produced by advanced optical technology to have a very small thickness and an integral structure in order to prevent a vignetting phenomenon in which the captured image is adversely affected by the frame of the filter.Type: GrantFiled: August 12, 2010Date of Patent: March 11, 2014Assignee: Marumi Optical Co., Ltd.Inventor: Yutaka Karasawa
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Patent number: 8643945Abstract: An infrared light reflector having an infrared light reflective layer formed by polymerizing an infrared light reflective layer composition that contains a polyfunctional polymerizable compound, a cholesteric liquid crystal compound and a fluorine-containing alignment controlling agent in an amount of at least 60 ppm relative to the liquid crystal compound, wherein when a functional layer composition is applied onto at least one surface of the infrared light reflective layer, the number of the coating liquid cissing defects having a diameter of at least 5 ?m is at most 10/m2.Type: GrantFiled: August 23, 2011Date of Patent: February 4, 2014Assignee: FUJIFILM CorporationInventor: Hidetoshi Watanabe
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Publication number: 20140029086Abstract: This disclosure provides a new method for polarizing an electromagnetic wave having a frequency of not less than 0.1 THz and not more than 0.8 THz using a polarizer. The method comprises: a step (a) of preparing the polarizer; wherein the polarizer comprises a sapphire single crystalline layer and a CaxCoO2 crystalline layer, the CaxCoO2 crystalline layer is stacked on the sapphire single crystalline layer, a surface of the CaxCoO2 crystalline layer has a (010) surface orientation, and the CaxCoO2 crystalline layer has a thickness of not less than 2 micrometers and not more than 20 micrometers; and a step (b) of irradiating the polarizer with the electromagnetic wave having a frequency of not less than 0.1 THz and not more than 0.8 THz to output an output wave having only a component parallel to a c-axis direction of the sapphire single crystalline layer.Type: ApplicationFiled: October 1, 2013Publication date: January 30, 2014Applicant: PANASONIC CORPORATIONInventors: Kohei TAKAHASHI, Tsutomu KANNO, Akihiro SAKAI, Yuka YAMADA
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Publication number: 20140021367Abstract: Provided are a polarized light splitting element, a method of manufacturing the same, a light radiating device, a method of radiating light, and a method of manufacturing an ordered photo-alignment film. The polarized light splitting element has excellent durability with respect to UV rays and heat, and low pitch dependence of polarization characteristics, so that it is easily manufactured. In addition, the polarized light splitting element may realize a high polarization degree and extinction ratio even in a short wavelength region.Type: ApplicationFiled: September 27, 2013Publication date: January 23, 2014Applicant: LG CHEM, LTD.Inventors: Tae Su KIM, Jeong Ho PARK, Bu Gon SHIN, Jae Jin KIM, Jong Byung LEE, Jin Mi JUNG
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Patent number: 8630037Abstract: A near-infrared (NIR) optical shutter comprises a multiple-bandpass filter that is characterized by a bandstop filter region located between first and second bandpass filter regions. The first bandpass filter region passes visible light; the bandstop filter region blocks NIR light of wavelengths within a NIR light sensor band region; and the second bandpass filter region passes NIR light of longer wavelengths than a longer wavelength boundary of the NIR light sensor band region. A polarization state changer positioned between NIR polarizing filters and optically associated with the multiple-bandpass filter causes visible light transmission selectively in first and second light states. The polarization state changer in the first light state causes substantially reduced optical shutter transmission of NIR light in the second bandpass filter region and in the second light state causes substantially increased optical shutter transmission of NIR light in the second bandpass filter region.Type: GrantFiled: February 14, 2013Date of Patent: January 14, 2014Assignees: L-C TEC Displays AB, HT, Inc.Inventors: Jesper Osterman, Se Jin Kang, Terry J. Scheffer
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Publication number: 20140009823Abstract: Provided are a method of manufacturing a polarized light splitting element, a polarized light splitting element, a light radiating device, a method of radiating light, and a method of manufacturing an orientationally-ordered photoalignment layer. The method of manufacturing a polarized light splitting element has a simple manufacturing process and a low production cost, and may be used to easily manufacture a large-scale UV ray polarized light splitting element. In addition, the polarized light splitting element may have excellent durability to UV rays and heat, and a low pitch dependency on a polarization characteristic, thereby facilitating performance of the manufacturing process, and excellent polarity in a short wavelength region.Type: ApplicationFiled: August 20, 2013Publication date: January 9, 2014Applicant: LG CHEM, LTD.Inventors: Jeong Ho PARK, Tae Su KIM, Jae Jin KIM, Jong Byung LEE, Jin Mi JUNG, Bu Gon SHIN
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Publication number: 20130335815Abstract: The present application relates to a polarization separation element, a method for manufacturing a polarization separation element, a device for irradiating light, a method for irradiating light, and a method for manufacturing a photo-alignment layer. An ultraviolet ray polarization separation element, according to the present invention, has superior resistance to ultraviolet rays and heat, and involves a simple manufacturing process due to less pitch dependency of polarizing characteristics. In addition, the polarization separation element according to the present application can achieve a superior degree of polarization and extinction ratio even within a short wavelength field.Type: ApplicationFiled: August 16, 2013Publication date: December 19, 2013Applicant: LG CHEM, LTD.Inventors: Tae Su KIM, Jae Jin Kim, Jong Byung Lee, Jeong Ho Park, Jin Mi Jung, Bu Gon Shin
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Patent number: 8593727Abstract: A method comprises spatially selectively irradiating in a predetermined pattern with an output beam of a laser system an interface between a polymer substrate and a metal film on the polymer substrate. The polymer substrate is substantially transparent to the output beam of the laser system; the metal film absorbs a substantial fraction of the output beam. Laser system output comprises a sequence of pulses. Beam size at the polymer/metal interface, pulse energy, and pulse duration are selected so that each pulse from the laser system that irradiates an area of the polymer/metal interface substantially completely removes by ablation the metal film from at least a portion of the irradiated area without substantially altering the surfaces or bulk of the polymer substrate and without leaving on the polymer substrate or on remaining areas of the metal film substantial residue of metal that resolidified after being melted by the laser irradiation.Type: GrantFiled: April 25, 2011Date of Patent: November 26, 2013Inventor: Vladimir G. Kozlov
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Publication number: 20130293949Abstract: An adhesive composition curable with an active energy ray includes radical polymerizable compounds (A), (B) and (C) as curable components. The composition includes the radical polymerizable compound (A) having an SP value of 29.0 to 32.0 (kJ/m3)1/2 both inclusive in a proportion of 20 to 60% by weight, the radical polymerizable compound (B) having an SP value of 18.0 (kJ/m3)1/2 or more, and less than 21.0 (kJ/m3)1/2 in a proportion of 10 to 30% by weight, and the radical polymerizable compound (C) having an SP value of 21.0 to 23.0 (kJ/m3)1/2 both inclusive in a proportion of 20 to 60% by weight, when the total amount of the adhesive composition is regarded as 100% by weight, and a homopolymer made from each of the radical polymerizable compounds (A), (B) and (C) has a glass transition temperature (Tg) of 60° C. or higher.Type: ApplicationFiled: December 13, 2011Publication date: November 7, 2013Applicant: NITTO DENKO CORPORATIONInventors: Takeshi Saito, Masashi Shinagawa, Tetsurou Ikeda, Tatsuya Yamasaki, Toshiki Oomine, Masayuki Satake, Shusaku Goto, Takeharu Kitagawa, Minoru Miyatake, Tomohiro Mori, Takashi Kamijo
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Publication number: 20130286401Abstract: Provided herein is an optical turbulence device configured for insertion between the target collimator and the sensor unit being tested, which simulates a turbulence effect. The turbulence device for imparting wavefront aberrations to a projected radiation beam includes an optical phase element for altering the optical phase of a radiation beam. The optical phase element includes a plurality of active areas disposed on a surface of the phase element. The plurality of active areas includes a plurality of variations for imparting wavefront aberrations to a radiation beam, thereby altering optical phase of the beam. The device further includes a driving mechanism coupled to the optical phase element for transitioning the optical phase element between a plurality of positions, thereby exposing a different active area of the optical phase element to the radiation beam. The optical phase element is configured to be positioned at an intermediate focal plane of an inverting a focal optical assembly.Type: ApplicationFiled: March 14, 2013Publication date: October 31, 2013Applicant: Manufacturing Techniques, Inc.Inventor: John M. Hall
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Patent number: 8556418Abstract: Curved lenses and methods for making curved lenses are described. One embodiment of a method of making a curved lens includes curving a lens blank made of a linear polarizer layer laminated together with a plurality of polymeric layers. The lens blank is curved by engendering rotational motion about a rotational axis of a roller having a forming surface thereon and lateral motion of a belt in contact with the forming surface. The lens blank is heated and pressed between the belt and the forming surface at a pressure, the pressure being supplied by tension on the belt. The pressure is maintained for a time sufficient to allow the lens blank to conform to the shape of the forming surface. Methods of the invention may be used to make curved lenses with different polarization properties and curvatures.Type: GrantFiled: April 16, 2012Date of Patent: October 15, 2013Assignee: Polaroid Eyeware LtdInventors: Eric Boinard, Pascal Boinard
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Publication number: 20130222892Abstract: The disclosure generally relates to optical devices, such as interactive displays, and in particular to interactive projection displays having passive interactive input devices. The present disclosure also provides a passive interactive input device (100, 130, 330, 430) having the ability to overcome problematic ambient interference signals in an interactive display, such as an interactive projection display (100).Type: ApplicationFiled: November 7, 2011Publication date: August 29, 2013Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventor: Ronald D. Jesme
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Publication number: 20130194658Abstract: A light-shielding lens which can cut ultraviolet or visible radiation having wavelengths of 430 nm and shorter or of 500 nm and shorter and which can sufficiently satisfy users' demand for its color. The lens contains 0.01 to 2 parts by mass of an indole-based ultraviolet absorbing dye having a melting point of 140 to 150° C., based on 100 parts by mass of a synthetic resin forming the lens, and preferably further contains an oil-soluble dye, whereby the lens can cut ultraviolet and visible radiation having wavelengths of 430 nm and shorter. Since the predetermined amount of the indole-based ultraviolet absorbing dye is sufficiently dissolved in the synthetic resin, it efficiently reveals its expected function. The lens can thus cut ultraviolet and visible radiation having wavelengths of 430 nm and shorter, or even 500 nm and shorter, while keeping highly transparent light color.Type: ApplicationFiled: March 12, 2013Publication date: August 1, 2013Applicant: Talex Optical Co., Ltd.Inventors: Kanichi TAMURA, Shoichi MITSUUCHI, Kenzo WADA
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Patent number: 8482717Abstract: The invention relates to a projection system, comprising a radiation source, an illumination system operable to illuminate a structured mask, and a projection objective for projecting an image of the mask structure onto a light-sensitive substrate, wherein said projection system comprises an optical system comprising an optical axis or a preferred direction given by the direction of a light beam propagating through the optical system; the optical system comprising a temperature compensated polarization-modulating optical element described by coordinates of a coordinate system, wherein one preferred coordinate of the coordinate system is parallel to the optical axis or parallel to said preferred direction; said temperature compensated polarization-modulating optical element comprising a first and a second polarization-modulating optical element, the first and/or the second polarization-modulating optical element comprising solid and/or liquid optically active material and a profile of effective optical thickneType: GrantFiled: August 29, 2008Date of Patent: July 9, 2013Assignee: Carl Zeiss SMT GmbHInventors: Damian Fiolka, Markus Deguenther
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Publication number: 20130155494Abstract: Disclosed is a miniature, two-dimensional, auto-cloning, polarizing beam splitter that includes a substrate and an optical multilayer. The substrate is formed with a periodic structure. The optical multilayer is formed on the periodic structure of the substrate. The optical multilayer includes a (LH)n structure wherein H represents a film of a high refractive index, and L represents a film of a low refractive index, and n is an integer. The auto-cloning polarizing beam splitter is operable to split infrared light of wavelengths of 1000 nm to 1300 nm.Type: ApplicationFiled: December 18, 2011Publication date: June 20, 2013Applicant: Chung-Shan Institute of Science and Technology, Armaments, Bureau, Ministry of National DefenseInventors: Sheng-Hui Chen, Cheng-Chung Lee, Chao-Chun Huang
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Patent number: 8466408Abstract: Provided is a surface film for a polarizing plate in which transparent patterns having a non-visible light reflective regularity are printed on a surface of a substrate and in which a reflection preventive layer or an antiglare layer is formed thereon or on a back side thereof, wherein an ink constituting the above transparent patterns contains a material reflecting a non-visible light. Capable of being provided is a surface film which can suitably be used for providing additional informations to an image display medium in such a manner that data are input by handwriting directly on a display device and in which the function described above is built-in from the beginning without making it necessary for the user to stick later a sheet having the above function.Type: GrantFiled: July 31, 2008Date of Patent: June 18, 2013Assignee: Dai Nippon Printing Co., Ltd.Inventors: Yuichi Miyazaki, Yasuki Suzuura, Satoko Maenishi, Keiko Tazaki
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Patent number: 8436983Abstract: An optical system is able to achieve a substantially azimuthal polarization state in a lens aperture while suppressing loss of light quantity, based on a simple configuration. The optical system of the present invention is provided with a birefringent element for achieving a substantially circumferential distribution or a substantially radial distribution as a fast axis distribution in a lens aperture, and an optical rotator located behind the birefringent element and adapted to rotate a polarization state in the lens aperture. The birefringent element has an optically transparent member which is made of a uniaxial crystal material and a crystallographic axis of which is arranged substantially in parallel with an optical axis of the optical system. A light beam of substantially spherical waves in a substantially circular polarization state is incident to the optically transparent member.Type: GrantFiled: January 14, 2005Date of Patent: May 7, 2013Assignee: Nikon CorporationInventor: Yasuhiro Omura
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Patent number: 8422134Abstract: A dual pulsed light generation apparatus including a polarization beam splitter (PBS), a first polarization reflector, and a second polarization reflector is provided. The PBS has a first plane, a second plane, and a dividing interface located between the first plane and the second plane. The PBS is located in the transmission path of an incident pulsed light and used for dividing the incident pulsed light into a first polarization pulsed light reflected by the dividing interface and a second polarization pulsed light passing through the dividing interface. The first polarization reflector is disposed opposite to the first plane and transforms the first polarization pulsed light into a third polarization pulsed light passing through the dividing interface. The first polarization reflector is disposed opposite to the second plane.Type: GrantFiled: June 30, 2010Date of Patent: April 16, 2013Assignee: Industrial Technology Research InstituteInventors: Ping-Han Wu, Kuang-Po Chang
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Publication number: 20130088772Abstract: Methods of making eyeglasses lens are disclosed where the layers of the lenses include an infrared dye absorbed coating layer to provide an additional layer of protection against infrared, wherein the said coating decreases damage to the retina and cornea, improves contrast of color, increases visibility, and improves aesthetics of the lens.Type: ApplicationFiled: January 16, 2012Publication date: April 11, 2013Inventor: Roger Wei-Yi Hsu
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Publication number: 20130077156Abstract: A multifunctional polarizing filter is used for a digital camera, and is produced by advanced optical technology to have a very small thickness and an integral structure in order to prevent a vignetting phenomenon in which the captured image is adversely affected by the frame of the filter.Type: ApplicationFiled: August 12, 2010Publication date: March 28, 2013Inventor: Yutaka Karasawa
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Publication number: 20130070331Abstract: A polarization switching apparatus has a first birefringent polarizer formed as a composite prism and disposed to direct incident light of a first polarization along a first optical path and light of a second polarization along a second optical path, wherein the second optical path is oblique to the first optical path. A beam redirector is disposed to redirect the first optical path from the first birefringent polarizer toward an input face of a second birefringent polarizer; wherein the second birefringent polarizer is also formed as a composite prism and is disposed to combine incident light of the first and second polarizations onto a common output path. A shutter apparatus is actuable to selectively block light of the first polarization or light of the second polarization from the input face of the second birefringent polarizer.Type: ApplicationFiled: May 2, 2012Publication date: March 21, 2013Inventors: Paul G. Dewa, Michael M. Dunn, Stephen K. Mack, Brian Monroe McMaster, Robert L. Michaels, Paul Francis Michaloski
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Publication number: 20130038927Abstract: The present invention provides a garnet single crystal comprising a terbium aluminum garnet single crystal, wherein a portion of the aluminum is substituted with scandium, and a portion of at least one of the aluminum and terbium is substituted with at least one type selected from the group consisting of thulium, ytterbium and yttrium.Type: ApplicationFiled: October 18, 2012Publication date: February 14, 2013Inventors: Tsubasa HATANAKA, Akiharu FUNAKI, Kiyoshi SHIMAMURA, Villora Encarnacion Antonia GARCIA
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Patent number: 8305683Abstract: A polarizer of the present invention having a higher level of polarization performance for a light in the deep ultraviolet wavelength range includes: a substrate transparent to deep ultraviolet light; and a periodic structure including a plurality of structural elements at predetermined intervals on the substrate, the polarizer being configured so that the deep ultraviolet light incident thereon is split into a light component reflected by the periodic structure and a light component passing between the structural elements adjacent to each other, and the periodic structure being composed of chromium oxide or tungsten.Type: GrantFiled: November 11, 2009Date of Patent: November 6, 2012Assignee: Canon Kabushiki KaishaInventors: Kosuke Asano, Taisuke Isano, Yasushi Kaneda
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Publication number: 20120268695Abstract: A device, in particular for display units, includes a first transparent panel element and a second transparent panel element and a coating introduced between the first transparent panel element and the second transparent panel element. The coating is an IR-reflective coating which is applied onto the first and/or second element. The at least first transparent panel element and the at least second transparent panel element and the coating form a lamination. The space between the panels is filled with a filler material.Type: ApplicationFiled: April 25, 2012Publication date: October 25, 2012Inventors: Marten Walther, Stephan Reimann
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Patent number: 8294836Abstract: A liquid crystal display device includes: a liquid crystal panel which has a liquid crystal device containing liquid crystal operating in twist nematic mode and a micro-lens array disposed adjacent to the liquid crystal device; a first optical compensating plate disposed on the incident side of the liquid crystal panel to optically compensate the liquid crystal device; and a second optical compensating plate disposed on the exit side of the liquid crystal panel to optically compensate the liquid crystal device. A first retardation of the first optical compensating plate in system optical axis direction is larger than a second retardation of the second optical compensating plate in the system optical axis direction.Type: GrantFiled: December 2, 2008Date of Patent: October 23, 2012Assignee: Seiko Epson CorporationInventor: Takashi Endo
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Patent number: 8259378Abstract: A scanning apparatus operable in the microwave, mm-wave, sub mm-wave (Terahertz) and infrared ranges comprises a primary drum (10) mounted for rotation about a central axis A of the primary drum being hollow and of rectangular polygonal form to provide a number of sides or facets (12, 14) each adapted to transmit such radiation, from a field of view, which is plane polarized in a first direction at 45° with respect to the rotary axis of the drum and to reflect radiation which is plane polarized in an orthogonal direction. Thus, radiation passing into the drum though whichever said side of the drum is currently facing the field of view and passing towards the diametrically opposite side will be plane polarized with a polarization direction such as to be reflected back by that diametrically opposite side towards the rotary axis of the drum.Type: GrantFiled: February 25, 2005Date of Patent: September 4, 2012Assignee: Farran Technology LimitedInventors: Alan H. Lettington, Brenda Lettington, legal representative
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Patent number: 8259392Abstract: A microlithography projection exposure system has an illumination system with an illumination optical system. The latter can have at least one diffractive optical element, which is divided into multiple adjacently arranged individual elements, each of which has one specified bundle-forming and polarizing effect.Type: GrantFiled: February 13, 2008Date of Patent: September 4, 2012Assignee: Carl Zeiss SMT GmbHInventors: Harald Volkenandt, Gundula Weiss
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Publication number: 20120218626Abstract: Disclosed is an infrared-ray reflective member which efficiently reflects infrared rays (heat rays) contained in sunlight while transmitting visible light rays. The infrared-ray reflective member has an infrared-ray reflective layer having a selective reflection layer for reflecting infrared rays of a right-circularly polarized light component or a left-circularly polarized light component, and the infrared-ray reflective layer has a first reflection band corresponding to a first radiant energy band containing a peak located closest to the short-wavelength side of the infrared range of the spectrum of sunlight on earth, and when the maximum reflectance in the first reflection band is determined at R1 and a wavelength in the short-wavelength side for allowing half-value reflectance of the R1 is determined at ?1, the ?1 is 900 nm to 1010 nm.Type: ApplicationFiled: October 8, 2010Publication date: August 30, 2012Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Satoru Hamada, Shoji Takeshige, Keiji Kashima, Takashi Kuroda
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Publication number: 20120183739Abstract: There are provided a UV high-transmittance double-layer wire grid polarizer for a photo-alignment film and a method for manufacturing the same. The UV high-transmittance double-layer wire grid polarizer for a photo-alignment film includes: a substrate; an anti-reflection layer disposed on the substrate; a patterned photoresist layer disposed on the anti-reflection layer; and metal thin films disposed on the photoresist layer and the anti-reflection layer.Type: ApplicationFiled: August 24, 2010Publication date: July 19, 2012Inventors: Jae-Jin Kim, Sin-Young Kim, Bu-Gon Shin, Tae-Su Kim
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Publication number: 20120162627Abstract: An illumination optical unit includes a collector mirror which produces a polarization distribution that is applied to the first faceted optical element during the operation of the illumination optical unit. There are at least two first facet elements to which radiation having a differing polarization is applied. The first faceted optical element has at least one first state in which the normal vectors of the reflective surfaces of the first facet elements are selected so that a first predetermined polarization distribution results at the location of the object field during the operation of the illumination optical unit.Type: ApplicationFiled: February 10, 2012Publication date: June 28, 2012Applicant: CARL ZEISS SMT GMBHInventors: Damian Fiolka, Ralf Stuetzle
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Publication number: 20120162960Abstract: A light-uniforming anti-glaring structure includes a light-polarizing reflection unit and a light-polarizing position adjusting unit. The light-polarizing reflection unit includes a multilayer reflector composed of a plurality of inter-stacked polymer films. One of the inter-stacked polymer films is a birefringence material layer that conforms to the condition of NX?NY?NZ, wherein NX is the index of refraction of light at X direction, NY is the index of refraction of light at Y direction, and NZ is the index of refraction of light at Z direction. The light-polarizing position adjusting unit is coupled with the light-polarizing reflection unit for adjusting the position of the light-polarizing reflection unit.Type: ApplicationFiled: September 21, 2011Publication date: June 28, 2012Applicant: EXTEND OPTRONICS CORP.Inventors: CHAO-YING LIN, JEN-HUAI CHANG
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Patent number: 8179520Abstract: The present invention provides an optical element which is used for light having a wavelength not more than 250 nm, and receives a light beam at a maximum incident angle not less than 55°, wherein the optical element includes an optical thin film in an effective aperture thereof, and a film thickness distribution of the optical thin film in the effective aperture includes a distribution in which a thickness of the optical thin film in an outermost periphery of the effective aperture is 1.10 times (inclusive) to 1.25 times (inclusive) a thickness of the optical thin film at a midpoint between an optical axis and the outermost periphery of the effective aperture.Type: GrantFiled: March 6, 2009Date of Patent: May 15, 2012Assignee: Canon Kabushiki KaishaInventor: Takumi Tokimitsu
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Publication number: 20120113380Abstract: The present invention relates generally to the field of organic chemistry and particularly to the nematic lyotropic liquid crystal solution and negative dispersion retardation plate for application in 3D liquid crystal displays. The negative dispersion retardation plate comprises a substrate, and at least one optically anisotropic retardation layer comprising a multi-component guest-host composition coated onto the substrate.Type: ApplicationFiled: November 6, 2011Publication date: May 10, 2012Applicant: Crysoptix KKInventors: Arthur Geivandov, Pavel Ivan Lazarev, Serguei Palto
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Publication number: 20120113356Abstract: A polarizing plate includes a polarizer, a thin film on the polarizer, the thin film having an in-plane phase difference (Ro) of about 500 nm to about 3000 nm, and a coating layer disposed on one side of the thin film and having a haze value of about 15% to about 35%.Type: ApplicationFiled: January 19, 2012Publication date: May 10, 2012Inventors: So-Hee YU, Tae-Hwan Kwon, Jae-Bin Song, Hae-Ryong Chung
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Publication number: 20120092757Abstract: An over/under lens for projecting a 3D film print possesses a circular polarization module that includes a clockwise circular polarization filter assembly and a counterclockwise circular polarization filter assembly. The clockwise and counterclockwise circular polarization filter assemblies advantageously limit cross talk occurring between left-eye and right eye images, thus improving the viewing experience.Type: ApplicationFiled: December 15, 2009Publication date: April 19, 2012Inventors: Mark J. Huber, William Gibbens Redmann, Jed Harmsen
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Publication number: 20120057222Abstract: A single crystal of magnesium fluoride having a large diameter and excellent optical properties such as internal transmittance and long term laser durability, and suited for use as optical elements for exposing apparatus. The single crystal of magnesium fluoride is of a cylindrical shape having a straight body portion of a diameter of not smaller than 10 cm, has an internal transmittance of at least 85%/cm at 120 nm and at least 98%/cm at 193 nm and has, desirably, an induced absorption of not larger than 0.0030 absorption/cm at 255 nm and, particularly desirably, not larger than 0.0010 absorption/cm. at 255 nm immediately after the irradiation with 2 million shorts of an ArF excimer laser of an energy density of 30 mJ/cm2 and 2000 Hz. The invention further provides an optical element for optical lithography comprising the single crystal and an optical member for vacuum ultraviolet ray transmission comprising the single crystal.Type: ApplicationFiled: September 3, 2010Publication date: March 8, 2012Inventors: Yasuhiro HASHIMOTO, Masao Ariyuki, Naoto Mochizuki, Tsuguo Fukuda
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Publication number: 20120050847Abstract: An infrared light reflector having an infrared light reflective layer formed by polymerizing an infrared light reflective layer composition that contains a polyfunctional polymerizable compound, a cholesteric liquid crystal compound and a fluorine-containing alignment controlling agent in an amount of at least 60 ppm relative to the liquid crystal compound, wherein when a functional layer composition is applied onto at least one surface of the infrared light reflective layer, the number of the coating liquid cissing defects having a diameter of at least 5 ?m is at most 10/m2.Type: ApplicationFiled: August 23, 2011Publication date: March 1, 2012Inventor: Hidetoshi WATANABE
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Publication number: 20110310470Abstract: At least one embodiment of the present invention provides a display device that is capable of suppressing reflection and temperature increases in a display panel so that a favorable display characteristic is obtained even during outdoor use, and that can be realized by a simple configuration. In at least one example embodiment, the present invention is a display device including: a display panel; and a protective plate disposed further toward a viewing surface side than the display panel, wherein a low reflection film formed with a nanostructure is provided on a main surface of the protective plate on the viewing surface side, and a circularly polarizing plate and an infrared ray shielding film are disposed in sequence from the protective plate side toward the display panel side on a main surface of the protective plate on a side for disposing the display panel.Type: ApplicationFiled: November 18, 2009Publication date: December 22, 2011Applicant: Sharp Kabushiki KaishaInventor: Wataru Horie
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Publication number: 20110261441Abstract: This invention relates to use of metamaterials for creating spectral selectors of electromagnetic radiation. Planar metamaterial films patterned on the sub-wavelength scale can be used in polarization filters instead of natural and synthesized bulk crystals. Characteristics and the quality factor of metamaterial filters is controlled by the geometry of the pattern. Various types of metamaterials and filter configurations are proposed.Type: ApplicationFiled: April 25, 2011Publication date: October 27, 2011Inventors: Nikolay I. Zheludev, Eric Plum, Vassili A. Fedotov