Selective Wavelength Transmission Or Reflection Patents (Class 359/589)
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Publication number: 20110310477Abstract: A display device for a vehicle includes a front face cover that covers a front face of a display section for displaying information of the vehicle, and an antireflection film provided on a surface of the front face cover. The surface of the front face cover has a curved face which is formed so that an observation color of the curved face viewed from an eye range of a person sitting on a seat of the vehicle differs depending on an observation position in the eye range due to a difference in an interference wavelength of reflection light reflected by the antireflection film, the reflection light advancing toward the eye range from the front surface.Type: ApplicationFiled: June 17, 2011Publication date: December 22, 2011Applicant: YAZAKI CORPORATIONInventor: Shuichi ISHIBASHI
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Patent number: 8081373Abstract: The color reflected by an interferometric modulator may vary as a function of the angle of view. A range of colors are thus viewable by rotating the interferometric modulator relative to an observer. By placing a textured layer between an observer and an interferometric modulator, a pattern which includes the range of colors may be viewed by the observer, and the range of colors may thus be viewable from a single viewing angle.Type: GrantFiled: October 12, 2010Date of Patent: December 20, 2011Assignee: Qualcomm Mems Technologies, Inc.Inventors: Manish Kothari, Gaurav Sethi, Jonathan Charles Griffiths, Eric Worthington
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Patent number: 8072679Abstract: A microscope includes optics configured to direct beams onto an object including a reflective material, a detector configured to receive a field spectrum formed by beams reflected by the object, and a calculator configured to reconstruct an image of the object from the field spectrum detected by the detector.Type: GrantFiled: May 23, 2008Date of Patent: December 6, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-wan Kim, Dong-gun Lee, Sung-min Huh
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Patent number: 8064632Abstract: An interference filter having a plurality of layers and a spectrum as a function of angle of observation is combined with a metameric element adjacent the interference filter and appearing to have a same color as the interference filter at at least one angle of observation and a contrasting color as said interference filter at least one other angle of observation. A plurality of interference filter layers, including a metallic layer, can be provided on a support structure for the layers. The support structure is then adapted to allow the layers to be seen from a top and a bottom side, with the layers being adapted to have different spectra as a function of angle of observation in reflection and transmission.Type: GrantFiled: April 23, 2007Date of Patent: November 22, 2011Assignee: Corporation de l'Ecole Polytechnique de MontfInventors: Bill Baloukas, Ludvik Martinu
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Publication number: 20110279901Abstract: A multilayer filter includes a multilayer part in which a layer composed of a first material and a layer composed of a second material having a refractive index different from that of the first material are stacked in an alternating pattern. The multilayer part has a cyclic film-thickness structure in which three or more layers are defined as one cycle.Type: ApplicationFiled: May 6, 2011Publication date: November 17, 2011Applicant: OLYMPUS CORPORATIONInventor: Tadashi WATANABE
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Patent number: 8045269Abstract: An optical filter has a multilayer thin film comprising first to i-th layers stacked in alternate layers of high and low refractive indices on a transparent substrate. Respective odd-numbered layers (high refractive index layers) and respective even-numbered layers (low refractive index layers) form repetitive sequences of layers each of which cyclically changes in optical thickness throughout the multilayer thin film. Each of k-th from-the-bottom alternate layers of high and low refractive indices has such an optical thicknesses as meet the following conditional expressions (1) and (2), concurrently: n×d=(.c/4)×[1+sin{(k?1)×.}×.]??(1) 0 . . . <1 ??(2) where .c is the center wavelength of reflection band, n is the refraction index of the layer for the d-line, d is the physical thickness of the layer, . is a factor of a pitch angle represented by 2./the number of layers a one layer-stack, . is the rate of amplitude.Type: GrantFiled: March 24, 2008Date of Patent: October 25, 2011Assignee: Fujinon CorporationInventor: Shuji Akiya
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Publication number: 20110255167Abstract: A reflective film includes a first optical stack that provides a first reflective characteristic and a second optical stack that provides a second reflective characteristic. The optical stacks also have first and second absorptive characteristics that are suitable to absorptively heat the respective stacks upon exposure to light including a write wavelength while maintaining the structural integrity of the stacks. The absorptive heating can change the first and second reflective characteristics to third and fourth reflective characteristics, respectively. A blocking layer that at least partially blocks light of the write wavelength may also be provided between the optical stacks to permit absorptive heating of any selected one of the optical stacks. The reflective characteristics of the optical stacks can thus be independently modified in any desired patterns by appropriate delivery of light beams that include the write wavelength.Type: ApplicationFiled: December 22, 2009Publication date: October 20, 2011Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: William Ward Merrill, Douglas S. Dunn, Przemyslaw P. Markowicz
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Patent number: 8040608Abstract: Exemplary apparatus and/or method can be provided using which, it is possible to provide information associated with at least one portion of a sample. For example, at least one electro-magnetic radiation received from the at least one portion of the sample can be separated into a plurality of first radiations, one of the first radiations having a phase delay that is different from a phase delay of another of the first radiations. In addition, at least one of the first radiations can be received and separated into second radiations according to wavelengths of the received at least one of the first radiations. Further, it is possible to detect the second radiations and generate information regarding a position of the at least one portion of the sample as a function of at least one characteristic of at least one interference of the first radiations.Type: GrantFiled: August 29, 2008Date of Patent: October 18, 2011Assignee: The General Hospital CorporationInventors: Conor L. Evans, Johannes F. De Boer, Mattijs De Groot
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Patent number: 8035285Abstract: Disclosed herein are optical interference multilayer coatings having region provided by a physical vapor deposition process and region provided by a chemical vapor deposition process. Also disclosed herein are methods of making such coatings, as well as lamps comprising a light-transmissive envelope, at least a portion of the surface of the light-transmissive envelope being provided with the optical interference multilayer coating noted above. Such coatings, when used on lamps, may advantageously offer improved energy efficiencies for such lamps.Type: GrantFiled: July 8, 2009Date of Patent: October 11, 2011Assignee: General Electric CompanyInventors: Zhibo Zhao, Tianji Zhao, Rajasingh Schwartz Israel, Jiawei Li
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Patent number: 8035894Abstract: A Fresnel lens screen 20 is comprised of a light entering surface partial total reflection type Fresnel lens 24, a first light diffusing part 26 disposed behind the Fresnel lens, and a first base 25. An image display element 30 disposed behind the Fresnel lens screen 20 has a lens element 31, a second base 32, and a third base 35. Second light diffusing parts 33 are disposed behind the second base 32. Each of the second light diffusing parts 33 includes two types of particulates having different particle sizes which are distributed therein.Type: GrantFiled: October 30, 2009Date of Patent: October 11, 2011Assignee: Mitsubishi Electric CorporationInventors: Takao Endo, Yuzo Nakano, Hayato Takeuchi
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Publication number: 20110243162Abstract: An optical member made of polycrystalline silicon formed from high-purity trichlorosilane as a raw material, and that absorbs and scatters an infrared ray in a wavelength region of 4 ?m or less. In the optical member, a ratio A/B between a transmittance A of an infrared ray having a wavelength of 4 ?m and a transmittance B of an infrared ray having a wavelength of 10 ?m is 0.9 or less, and an average crystal grain size of the polycrystalline silicon is 5 ?m or less. This polycrystalline silicon is produced by hydrogen reducing SiHCI3 by heating a base material to 800 to 900° C. using a chemical vapor deposition method. In this way, an infrared ray transmissive optical member, a manufacturing method thereof, an optical device, an infrared detector, and an optical apparatus capable of sensing a human body with high sensitivity and accuracy are realized.Type: ApplicationFiled: June 14, 2011Publication date: October 6, 2011Inventors: Takashi Fujii, Kazuyuki Hirao, Kanji Sakata
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Publication number: 20110235182Abstract: Provided are a reflective structure, a display apparatus including the reflective structure, and methods of manufacturing the reflective structure and the display apparatus. The reflective structure may include a reflective layer having a multiple uneven structure. The reflective layer may have a curved surface as a result of a plurality of first uneven portions, and wherein the curved surface may has a plurality of second uneven portions having a scale less than that of the first uneven portions. The plurality of first uneven portions may have a micro-scale size, and the plurality of second uneven portions may have a nano-scale size. The reflective layer may be arranged on a lower structure including a plurality of nanoparticles. A flexible material layer may be formed on the reflective layer.Type: ApplicationFiled: August 11, 2010Publication date: September 29, 2011Applicants: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Moon Gyu Han, Hong-seok Lee, Jung H. Shin, Kyung Jae Chung
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Patent number: 8025957Abstract: A transparency includes a first ply having a first visible light transmission and a second ply having a second visible light transmission, with the first visible light transmission being greater than the second visible light transmission. A solar control coating is located between the first ply and the second ply. The solar control coating has a first infrared reflective metallic layer, a second infrared reflective metallic layer and a third infrared reflective metallic layer. The first infrared reflective metallic layer is thicker than the second infrared reflective metallic layer and the second infrared reflective metallic layer is thicker than the third infrared reflective metallic layer.Type: GrantFiled: August 20, 2008Date of Patent: September 27, 2011Assignee: PPG Industries Ohio, Inc.Inventor: James P. Thiel
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Patent number: 8027389Abstract: A transmission circuit (101) for transmitting data onto a transmission line, and a mask circuit (102) for generating a mask signal (105) for removing a reflected wave based on a transmission timing notification signal (104) supplied form the transmission circuit (101) are provided. For example, a timer circuit (301) causes the mask signal (105) to be effective only for a predetermined time immediately after transmission. A logic circuit (302) is used to remove a reflected wave from the received signal (106) based on the mask signal (105), and a resultant masked received signal (107) is input to a reception circuit (103).Type: GrantFiled: December 6, 2006Date of Patent: September 27, 2011Assignee: Panasonic CorporationInventors: Takeshi Kado, Hideo Imai
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Patent number: 8023191Abstract: Methods of fabricating a static interferometric image device and static interferometric image device formed by the same are disclosed. In one embodiment, a method includes providing a substrate. A plurality of liquid layers are formed over the substrate by an inkjet process such that the layers are lateral to one another. The liquid layers contain a solidifiable material or particles. Then, the plurality of liquid layers are solidified to form a plurality of solid layers. In some embodiments, the substrate includes pre-defined cavities, and the liquid layers are formed in the cavities. In other embodiments, the substrate includes a substantially planar, stepped, or continuously transitioning surface, and the liquid layers are formed on the surface. The inkjet process provides optical fillers or spacers for defining interferometric gaps between absorbers and reflectors in the display device, based at least partially on an image that the display device is designed to display.Type: GrantFiled: May 7, 2008Date of Patent: September 20, 2011Assignee: QUALCOMM MEMS Technologies, Inc.Inventors: Mark W. Miles, Brian W. Arbuckle, Ion Bita, Manish Kothari, Patrick F. Brinkley, Gang Xu, Nassim Khonsari, Jonathan C. Griffiths
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Publication number: 20110222160Abstract: A method of manufacturing an optical filter according to the invention includes the steps of forming a first bonding film in a first bonding area of a first substrate provided with a first reflecting film, forming a second bonding film in a second bonding area of a second substrate provided with a second reflecting film, irradiating the first bonding area with ozone or an ultraviolet ray using a first mask member, irradiating the second bonding area with ozone or an ultraviolet ray using a second mask member, and bonding the first bonding film and the second bonding film to each other to bond the first substrate and the second substrate to each other, thereby protecting the reflecting films from ozone or ultraviolet radiation to prevent the reflecting films from being deteriorated in the manufacturing process.Type: ApplicationFiled: March 11, 2011Publication date: September 15, 2011Applicant: SEIKO EPSON CORPORATIONInventor: Seiji YAMAZAKI
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OPTICAL FILTER, ANALYTICAL INSTRUMENT, OPTICAL APPARATUS, AND METHOD OF MANUFACTURING OPTICAL FILTER
Publication number: 20110222159Abstract: An optical filter according to the invention includes: first and second substrates opposed to each other; first and second reflecting films provided to the first and second substrates; first and second bonding films provided to the first and second substrates; and first and second barrier films disposed on surfaces of the first and second reflecting films, wherein the first barrier film has a transmittance of ozone lower than a transmittance of ozone the first reflecting film has, and the second barrier film has a transmittance of ozone lower than a transmittance of ozone the second reflecting film has. Accordingly, the reflecting films are protected from ozone or ultraviolet radiation during the manufacturing process of the optical filter and thereby the optical filter characteristics is prevented from being deteriorated.Type: ApplicationFiled: February 17, 2011Publication date: September 15, 2011Applicant: SEIKO EPSON CORPORATIONInventor: Seiji YAMAZAKI -
Patent number: 8018652Abstract: The present invention provides an optical filter including a substrate having a plurality of layers of materials stacked upon it each of which layers is formed from one or both of: a first material having a first index of refraction; and, a second material having a second index of refraction being less than the first index of refraction; wherein the plurality of layers of materials include a first layer and a second layer each formed from an inhomogeneous mixture of said first material and said second material; and a third layer formed from the first material being stacked in between the first layer and the second layer; wherein the optical thickness of each of said first and said second layers is greater than the optical thickness of said third layer.Type: GrantFiled: December 18, 2003Date of Patent: September 13, 2011Inventors: Denny Wernham, John Russell, Glenn Morgan Jones
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Patent number: 8014071Abstract: The present invention provides a light selective transmission filter which selectively shields light and has a high transmittance of light at a specific wavelength such as visible rays, and which has a sufficiently reduced thickness and excellent heat resistance. The present invention further provides a lens unit including such a light selective transmission filter. The light selective transmission filter selectively reducing a transmittance of light has a thickness of less than 200 ?m and includes a base material containing a functional film with reflow resistance. The lens unit includes such a light selective transmission filter and a lens.Type: GrantFiled: December 27, 2007Date of Patent: September 6, 2011Assignee: Nippon Shokubai Co., Ltd.Inventors: Ai Matsumoto, Tatsushi Hirauchi, Junichi Nakamura, Yasunori Tsujino, Shinpei Sato, Keiko Ando, Yoko Matsui, Kozo Tajiri
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Patent number: 8014062Abstract: The present invention relates generally to a method and apparatus for attaching a close proximity filter to an FPA (focal plane array) and more particularly, to a method and apparatus that allows improved spectral discrimination of a mid-wave infra red (MWIR) detector by applying an improved multi-color filter to a focal plane array (FPA), while employing existing production equipment and techniques to reduce cost and improve production yield.Type: GrantFiled: March 6, 2008Date of Patent: September 6, 2011Assignee: Lockheed Martin CorporationInventors: Jeffrey W. Scott, Gene R. Loefer, Nicholas J. Pfister
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Patent number: 8004764Abstract: A filter and method for filtering an optical beam are disclosed. One embodiment of the filter is an optical filter for filtering an incident light beam, comprising an optically effective material characterized by: a light transmittance of less than 1% for wavelengths below 420 nm; and a light transmittance for wavelengths complementary and near complementary to wavelengths below 420 nm that, combined with the transmittance for wavelengths below 420 nm, will yield a filtered light beam having a luminosity of about 90% and an excitation purity of 5% or less. The complementary wavelengths can be wavelengths above about 640 nm, wavelengths above about 660 nm, and/or wavelengths from about 540 nm to about 560 nm.Type: GrantFiled: October 26, 2005Date of Patent: August 23, 2011Assignee: Novartis AGInventors: Alex N. Artsyukhovich, T. Scott Rowe
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Patent number: 8002442Abstract: A color filter (1) for illumination purposes, such as, for example, for stage illumination is proposed, which comprises a full-surface antireflection layer (3) and an additional, multilayered structured interference filter layer (4) arranged on it.Type: GrantFiled: November 12, 2008Date of Patent: August 23, 2011Assignee: Schott AGInventors: Andree Mehrtens, Lutz Zogg
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Publication number: 20110199685Abstract: An optical device includes a shaped layer, an optical function layer, and an embedding resin layer. The shaped layer has a structure forming a concave section. The optical function layer is formed on the structure, and partially reflects incident light. The embedding resin layer is made of energy beam curable resin, the embedding resin layer having a first layer having a first volume, and a second layer formed on the first layer, the second layer having a second volume, the concave section being filled with the first layer, a ratio of the second volume to the first volume being equal to or larger than 5%, the structure and the optical function layer being embedded in the embedding resin layer. In the optical device, at least one of the shaped layer and the embedding resin layer has light transmissive property, and an entrance surface for the incident light.Type: ApplicationFiled: February 9, 2011Publication date: August 18, 2011Applicant: SONY CORPORATIONInventor: Hiroyuki Ito
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Patent number: 8000013Abstract: Disclosed herein are photopolymerizable compositions and formulations that comprise photochromic dyes, photochromic blue light blocking dyes, permanent dyes, permanent blue blocking dyes, and/or their combinations. In some variations, these formulations are suited for example, for sandwiching between lens blanks to form semi-finished lens assemblies to form a tinted lens useful in sunglasses. The formulations are also suitable for correcting optical aberrations, and may provide a photochromic effect when exposed to sunlight.Type: GrantFiled: March 20, 2007Date of Patent: August 16, 2011Assignee: Ophthonix, Inc.Inventors: Jagdish M. Jethmalani, Gomaa Abdelsadek, Erdem Cetin, Shawn McCarty, Junhao Ge
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Patent number: 8000002Abstract: The invention is based on the object of providing UV interference filters having improved long-term stability. For this purpose, a method for producing a dielectric transmission interference filter is provided, in which an alternating layer system having the constituents magnesium fluoride, lead fluoride and antimony oxide is produced on a substrate by co-evaporation. After deposition, the substrate is subjected to heat treatment and irradiated with UV light in order to stabilize the layer system.Type: GrantFiled: May 29, 2008Date of Patent: August 16, 2011Assignee: Schott AGInventors: Ulf Brauneck, Ulrich Jeschkowski, Thomas Strohmaier, Wolfgang Erbach
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Patent number: 7986455Abstract: A multilayer mirror includes a layer sequence arranged on a substrate and a plurality of layer pairs. Each layer pair includes a first layer composed of a first material and a second layer composed of a second material. The first layers and the second layers each have a thickness of more than 2 nm, and the first material or the second material is a silicon boride or a molybdenum nitride.Type: GrantFiled: August 8, 2008Date of Patent: July 26, 2011Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Torsten Feigl, Nicolas Benoit, Sergiy Yulin, Nobert Kaiser
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Patent number: 7972004Abstract: A system and method for uniform light generation in projection display systems. An illumination source comprises a light source to produce colored light, and a scrolling optics unit optically coupled to the light source, the scrolling optics unit configured to create lines of colored light from the colored light, and to scroll the lines of colored light along a direction orthogonal to a light path of the illumination source. The scrolling optics unit comprises a single light shaping diffuser to transform the colored light into the lines of colored light, an optical filter positioned in the light path after the light shaping diffuser, and a scrolling optics element positioned in the light path after the optical filter. The single light shaping diffuser is capable of simultaneously transforming colored light into lines of colored light having substantially uniform intensity to provide uniform illumination.Type: GrantFiled: April 18, 2008Date of Patent: July 5, 2011Assignee: Texas Instruments IncorporatedInventors: Terry Alan Bartlett, Paul L. Rancuret
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Publication number: 20110149400Abstract: The present invention relates to a process for producing multilayers formed by thin mesoporous films of oxides or hybrid organic/inorganic materials by means of a combination of sol-gel methods, self-assembly of surfactants and selective functionalization of the surfaces of the pores. Each of the constituent layers has a chemical composition, thickness, and index of refraction.Type: ApplicationFiled: September 18, 2007Publication date: June 23, 2011Applicants: CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS, CONSEJO NACIONAL DE INVESTIGACIONES CIENTIFICAS Y TECNICASInventors: Hernan Ruy Miguez Garcia, Galo Juan De Avila Arturo Soler Illia, Maria Cecilia Fuertes, Javier Lopez Alcaraz
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Publication number: 20110141569Abstract: Multi-spectral filter elements and methods of formation are disclosed. Each multi-spectral filter element may include a plurality of sub-filters that are, in some embodiments, each adapted to respond to electromagnetic radiation within respective ones of a plurality of spectral bands. A method embodiment includes forming an optical cavity layer. Volume of the optical cavity layer can be reduced in at least N?1 number of spatial regions. The reducing may include a number of selective removal steps equal to the binary logarithm function Log2 N. In this example, each spatial region corresponds to a respective one of the plurality sub-filters. The plurality of sub-filters include at least N sub-filters. In particular embodiments, the respective ones of the plurality of spectral bands may be at least partially discrete with respect to each other.Type: ApplicationFiled: December 10, 2009Publication date: June 16, 2011Applicant: Raytheon CompanyInventor: Justin G. A. Wehner
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Patent number: 7952805Abstract: A transparent solar control film may have a single or multiple layer core that includes at least one layer of an orientated thermoplastic polymer material. Infrared radiation absorbing nanoparticles that preferentially absorb at least about 100 times more infrared radiation than visible radiation may be dispersed within the at least one layer of an oriented thermoplastic polymer layer. The transparent solar control film may have a haze value of less than about 5 percent.Type: GrantFiled: August 22, 2006Date of Patent: May 31, 2011Assignee: 3m Innovative Properties CompanyInventors: Daniel J. McGurran, Edward J. Kivel, Jeffrey A. Boettcher, Laurence R. Gilbert, Mitsuhiro M. Kominami, Raghunath Padiyath, Stephen J. Strauss
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Patent number: 7952797Abstract: A reflective optical element and an EUV lithography appliance containing one such element are provided, the appliance displaying a low propensity to contamination. The reflective optical element has a protective layer system consisting of at least one layer. The optical characteristics of the protective layer system are between those of a spacer and an absorber, or correspond to those of a spacer. The selection of a material with the smallest possible imaginary part and a real part which is as close to 1 as possible in terms of the refractive index leads to a plateau-type reflectivity course according to the thickness of the protective layer system between two thicknesses d1 and d2. The thickness of the protective layer system is selected in such a way that it is less than d2.Type: GrantFiled: March 6, 2009Date of Patent: May 31, 2011Assignee: CARL ZEISS SMT GmbHInventors: Johann Trenkler, Hans-Jürgen Mann, Udo Nothelfer
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Patent number: 7952804Abstract: There is disclosed an optical filter element that includes a translucent substrate; a laminated film formed by laminating plural thin films including a metal film on the translucent substrate; and a parallel structure in which parallel concave-shaped defective parts are periodically provided at a pitch shorter than a transmitted light wavelength. The parallel structure is formed in at least a part of the laminated film.Type: GrantFiled: November 19, 2007Date of Patent: May 31, 2011Assignee: Ricoh Company, Ltd.Inventor: Manabu Seo
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Patent number: 7944613Abstract: A light dispersion filter is composed of three or more optically transparent layers each having a value equal to the value of the product of the refractive index and thickness of the optically transparent layer and transmitted light, and a plurality of partially reflective layers arranged alternately with the optically transparent layers and having predetermined reflectivities. Alternatively, a light dispersion filter has a plurality of etalon resonators which are arranged in series such that the value of the product of the refractive index of air and the interval of the etalon resonators is equal to the value of the product of the refractive index and thickness of the optically transparent layers.Type: GrantFiled: February 4, 2009Date of Patent: May 17, 2011Assignee: NEC CorporationInventor: Kenji Sato
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Patent number: 7940459Abstract: A dichroic, light refracting resin panel comprises one or more dichroic/refracting films that have been embedded and/or laminated between a plurality of resin substrates, such as copolyester, polycarbonate, and/or acrylic substrates. The dichroic resin panel can be manufactured with a variety of different materials, and with autoclave or hot press methods in a manner that ensures structural and aesthetic integrity. Specifically, a dichroic resin panel in accordance with the present invention can be created in such a way as to avoid delamination despite a variety of end-uses and formations (e.g., curved panel, embossed/textured surfaces). In addition, the dichroic resin panels can be handled, transported, and installed in a variety of exterior or interior applications, even where certain building code requirements may be relatively stringent. The dichroic resin panels can be used in a variety of structural and/or aesthetic applications.Type: GrantFiled: February 25, 2008Date of Patent: May 10, 2011Assignee: 3form, Inc.Inventors: John E. C. Willham, Wendy E. K. Langan
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Publication number: 20110096395Abstract: Polymer fibers are formed with concentric alternating layers of different polymer materials. The layers pairs have cross-sectional thicknesses selected for reflecting light at a selected visible wavelength. A cross-sectional dimension of the core is at least ten times an average of the selected thicknesses of the alternating layers. Some articles formed by the fibers are formed by attaching one fiber to another: the color of the fibers at the point of attachment is different from the colors of the fibers elsewhere. The fibers may be deformed to change its color properties by elongating the cross-section of the polymer fiber along a first cross-sectional axis. In some embodiments, the fibers are polarization sensitive.Type: ApplicationFiled: March 2, 2009Publication date: April 28, 2011Inventors: Gregory L Bluem, Joan M. Frankel, David C. Kramlich, Robert L. Brott, Shandon D. Hart, Lynn E. Lorimor, Patrick R. Fleming, William J. Kopecky, Bruce B. Wilson, James M. Jonza
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Publication number: 20110089338Abstract: An optical filter is provided which includes a plurality of hard coating layers of alternating high and low refractive index provided on a substrate and has an associated first transmission band. The filter also includes at least one additional plurality of hard coating layers including high and low refractive index layers and Herpin equivalent layers sandwiched therebetween. The additional plurality of layers has an associated second transmission band that substantially coincides with the first transmission band, but provides additional blocking at wavelengths outside the first transmission band. Relatively wide transmission bands and high blocking over an extended range of wavelengths can be achieved such that the filter is suitable for use in multiphoton fluorescence systems.Type: ApplicationFiled: July 19, 2010Publication date: April 21, 2011Inventors: Craig Hodgson, Turan Erdogan, Ligang Wang
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Patent number: 7927723Abstract: A film stack includes an interlayer dielectric formed over one or more devices. The film stack further includes a first layer having a high extinction coefficient formed on the interlayer dielectric and a second layer having a low extinction coefficient formed on the first layer. The first and second layers prevent ultraviolet induced damage to the one or more devices while minimizing reflectivity for lithographic processes.Type: GrantFiled: March 29, 2005Date of Patent: April 19, 2011Assignees: Spansion LLC, GlobalFoundries Inc.Inventors: Angela T. Hui, Ning Cheng, Minh Van Ngo, Hirokazu Tokuno, Wenmei Li
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Publication number: 20110085240Abstract: A light dispersion filter is composed of three or more optically transparent layers each having a value equal to the value of the product of the refractive index and thickness of the optically transparent layer and transmitted light, and a plurality of partially reflective layers arranged alternately with the optically transparent layers and having predetermined reflectivities. Alternatively, a light dispersion filter has a plurality of etalon resonators which are arranged in series such that the value of the product of the refractive index of air and the interval of the etalon resonators is equal to the value of the product of the refractive index and thickness of the optically transparent layers.Type: ApplicationFiled: December 20, 2010Publication date: April 14, 2011Inventor: Kenji SATO
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Patent number: 7924504Abstract: A color filter structure includes a substrate, in which a number of first pixel regions, a number of second pixel regions, and a number of third pixel regions are defined on the substrate. Each first pixel region includes a first stack layer; each second pixel region includes a second stack layer; and each third pixel region includes the first stack layer and the second stack layer.Type: GrantFiled: January 1, 2008Date of Patent: April 12, 2011Assignee: United Microelectronics Corp.Inventors: Chao-An Su, Tzung-I Su, Ching-Hung Kao
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Publication number: 20110080572Abstract: An optical element including an anti-reflective coating is provided. The optical element includes a silicon substrate and a reflective layer disposed onto a first portion of the surface of the silicon substrate. An anti-reflective layer is disposed onto a second portion of the surface of the silicon substrate such that destructive interference at the anti-reflective layer substantially reduces any reflection of radiation incident on the anti-reflective layer.Type: ApplicationFiled: October 6, 2009Publication date: April 7, 2011Applicant: ASML Holding N.V.Inventor: Parag Vinayak KELKAR
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Publication number: 20110069391Abstract: A method and apparatus for producing low cost miniature images is provided. Modulated layers of materials over silicon substrate provide the shades of gray or colors needed to provide the perception of an image. Reflective characteristics as well as refractive characteristics of materials and modulated layers serve to produce the desired effects. Quasi-random geometries eliminate unwanted rainbow impressions. The resultant image is highly resistant to environmental conditions. Metal anodizing and coloring methods as well as metal anodizing interference thin layers methods are used to add more colors to the images. Relatively high-pitch patterns within the image produce secondary visual effects.Type: ApplicationFiled: September 18, 2010Publication date: March 24, 2011Inventor: Haim Zvi Melman
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Patent number: 7911692Abstract: A screen includes: a substrate; and a first color material layer disposed on one surface of the substrate, wherein the first color material layer includes a first color material adapted to absorb light with a part of wavelengths of an incident light, and the first color material has a peak absorption wavelength in a visible light range, and a size of causing Mie scattering on the light in the visible light range.Type: GrantFiled: June 24, 2010Date of Patent: March 22, 2011Assignee: Seiko Epson CorporationInventor: Junichi Okamoto
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Patent number: 7907340Abstract: Taught herein is an integragted narrow bandpass filter array and a method of its fabrication. The filter array is a Fabry-Perot type of filter array, wherein the pass band changes with the thickness of the spacer layer. The integrated filter array comprises a substrate, a lower mirror stack, a spacer array, and an upper mirror stack. The spacer array is an array of varied thicknesses formed using a combinatorial deposition technique. The spacer array is used to control the pass band of each mini-size narrow bandpass filter and realizes the integration of narrow bandpass filters with different pass bands on a single substrate. The merit of this technique lies in its fabrication efficiency and finished product rate which are much higher than for conventional methods. The filter array is completely matched with detector arrays and functional in most of the important optical ranges.Type: GrantFiled: October 26, 2007Date of Patent: March 15, 2011Assignee: Shanghai Institute of Technical Physics, Chinese Academy of SciencesInventors: Shaowei Wang, Wei Lu, Xiaoshuang Chen, Ning Li, Bo Zhang, Zhifeng Li, Pingping Chen
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Patent number: 7901736Abstract: The invention relates to a multilayer material deposited by ALD. A multi-layer structure of a high refractive index material is deposited on a substrate using ALD at a temperature below about 450° C. Advantageous results are obtained when a high refractive index material A is coated with another material B after a certain thickness of material A has been achieved. Thus, the B barrier layer stops the tendency for material A to crystallize. The amorphous structure gives rise to less optical loss. Further, the different stress nature of materials A and B may be utilized to achieve a final optical material with minimal stress. The thickness of each material B layer is less than that of the adjacent A layer(s). The total effective refractive index of the high refractive index material A+B being shall be greater than 2.20 at a wavelength of 600 nm. Titanium oxide and aluminium oxide are preferred A and B materials. The structure is useful for optical coatings.Type: GrantFiled: December 19, 2005Date of Patent: March 8, 2011Assignee: Planar Systems OyInventors: Jarmo Maula, Kari Härkönen, Anguel Nikolov
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Patent number: 7903338Abstract: An interface between two different optical materials can comprise a stack of thin film layers that manage light incident on that interface. One of the optical materials can have a first composition and a first refractive index, while the other optical material can have a second composition and a second refractive index. The stack can comprise thin film layers of the first optical material interleaved between thin film layers of the second optical material. The layers of the stack can be configured to provide the stack with an aggregate composition of at least one of the optical materials that progressively varies from one end of the stack to the other end. To provide the progressive variation in composition, the layers of one of the optical materials can have a progressively increased thickness across the stack, or can progressively increase in number, for example.Type: GrantFiled: July 7, 2007Date of Patent: March 8, 2011Assignee: Cirrex Systems LLCInventor: Michael L. Wach
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Publication number: 20110043823Abstract: The invention relates to an optical filter and a method for its production, and to a device for the examination of the spectral and spatial distribution of an electromagnetic radiation irradiated from an object. The invention is based on the task of providing an optical filter of the above described type that is inexpensive to produce, which can be used to detect a plurality of wavelengths, in which, however, tuning of the DBR mirrors by means of displacement is not necessary. Furthermore, a method for the production of such a filter is provided.Type: ApplicationFiled: August 9, 2007Publication date: February 24, 2011Inventors: Hartmut Hillmer, Wolfgang Koecher, Juergen Krieg, Carl Sandhagen, Hardy Hoheisel, Winfried Willemer
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Patent number: 7843632Abstract: In a first aspect, a method of fabricating an EUV light source mirror is disclosed which may comprise the acts/steps of providing a plurality of discrete substrates; coating each substrate with a respective multilayer coating; securing the coated substrates in an arrangement wherein each coated substrate is oriented to a common focal point; and thereafter polishing at least one of the multilayer coatings. In another aspect, an optic for use with EUV light is disclosed which may comprise a substrate; a smoothing layer selected from the group of materials consisting of Si, C, Si3N4, B4C, SiC and Cr, the smoothing layer material being deposited using highly energetic deposition conditions and a multilayer dielectric coating. In another aspect, a corrosion resistant, multilayer coating for an EUV mirror may comprise alternating layers of Si and a compound material having nitrogen and a 5th period transition metal.Type: GrantFiled: August 16, 2006Date of Patent: November 30, 2010Assignee: Cymer, Inc.Inventor: Norbert R. Bowering
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Patent number: 7839571Abstract: A curve representing a characteristic of a blue-light reflecting dichroic film DB and a curve representing a characteristic of a red-light reflecting dichroic film DR are configured to have shapes that track an ideal spectral characteristic of green. Accordingly, it is possible to obtain a characteristic approximated to the ideal spectral characteristic without using a trimming filter having a dichroic film in an exiting surface of a prism. Since it is not necessary to use the trimming filter having the dichroic film, it is possible to prevent ghost and flare from occurring due to the dichroic film of the trimming filter. Accordingly, it is possible to embody an imaging apparatus having the ideal spectral characteristic with ghost and flare being reduced.Type: GrantFiled: March 17, 2008Date of Patent: November 23, 2010Assignee: Fujinon CorporationInventors: Arihiro Saita, Shuji Akiya, Etsuo Terayama
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Patent number: 7835074Abstract: A mini-scope for multi-directional imaging is disclosed. The mini-scope includes an elongated mini-scoped body. An emissions aperture is disposed on the distal end of the elongated mini-scope body, which can be configured to emit a beam of optical energy propagating through a flexible optical conductor. A selective mirror is also positioned at the distal end of the elongated mini-scope body and is configured to selectively pass or reflect the beam of optical energy based on the optical characteristics of the beam. A SSID is further disposed on the distal end of the elongated mini-scope body for imaging illumination reflected by an external object in response to the beam of optical energy. This illumination is directed to pass through or reflect from the selective mirror to the camera based on optical characteristics of the beam.Type: GrantFiled: June 5, 2007Date of Patent: November 16, 2010Assignee: Sterling LCInventors: Stephen C. Jacobsen, David Marceau, Fraser Smith
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Patent number: RE42617Abstract: An image projection system includes a light source for generating a light beam, a reflective housing, and an invisible-light reflector. The reflective housing includes an opening and forms an accommodating space for accommodating the light source so that the light beam can emit from the opening along an optical path. The invisible-light reflector, whose normal is arranged to form an acute angle with the optical path, is installed at a reflecting position intersecting with the optical path outside the opening of the reflective housing. The invisible light of the light beam will be reflected back to the accommodating space by the invisible-light reflector without any destruction caused by the invisible light.Type: GrantFiled: May 16, 2008Date of Patent: August 16, 2011Assignee: BenQ CorporationInventors: Hung-Jen Wei, Chih-Chang Chou, Ming-Kuen Lin