Having Another Filter Patents (Class 359/590)
  • Patent number: 9948825
    Abstract: Provided is a processing apparatus that receives an operation and executes a process according to the operation, the processing apparatus including a housing that is provided with an opening facing a forward direction, a camera that causes a lens to be looked from the opening to generate a captured image, a filter that extends over a front surface of the lens and is placed with interposing a reflection reducing material between the filter and the housing, and a control unit that analyzes a human within an angle of a view of image capturing based on the captured image generated by the camera, using analysis results as one basis determines whether to cause the processing apparatus to transition to an enabled state, and causes the processing apparatus to transition to an enabled state when the determination of the transition to an enabled state is made.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: April 17, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Kenta Ogata
  • Patent number: 9638918
    Abstract: A display device includes a display panel having a display surface, an infrared cut filter layer disposed at a display surface side of the display panel, and a polarization layer disposed at a position farther from the display surface than the infrared cut filter layer in such a manner that the polarization layer is in contact with the infrared cut filter layer, the polarization layer having a higher transmittance of infrared light than that of the infrared cut filter layer.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: May 2, 2017
    Assignee: Japan Display Inc.
    Inventor: Toshinori Uehara
  • Patent number: 9579879
    Abstract: A method is provided for manufacturing an image on a substrate, wherein the image includes an indicia and a frame. The method includes covering at least a portion the substrate with a carrier comprising magnetically alignable flakes, aligning the magnetically alignable flakes with a magnetic field of a magnetic assembly comprising a metal plate with an opening, and solidifying the carrier. The frame is formed at an edge of the opening and the indicia is visible within the frame. The magnetic assembly includes two magnets disposed so that the North pole of one magnet and the South pole of another magnet are proximate to the metal plate at opposite sides of the opening.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: February 28, 2017
    Assignee: VIAVI SOLUTIONS INC.
    Inventor: Vladimir P. Raksha
  • Patent number: 8974066
    Abstract: Embodiments provided herein describe optical coatings, panels having optical coatings thereon, and methods for forming optical coatings and panels. A transparent substrate is provided. An optical coating is formed on the transparent substrate. The optical coating includes a plurality of plate-shaped silicon dioxide particles.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 10, 2015
    Assignees: Intermolecular, Inc., Guardian Industries Corp.
    Inventors: Nikhil Kalyankar, Richard Blacker, Scott Jewhurst, James Mulligan
  • Patent number: 8879150
    Abstract: Optical components and their methods of manufacture are provided, including a first stack of layers configured to exhibit a first stop band for s-polarized radiation and a second stop band for p-polarized radiation incident on the first stack of layers at an oblique angle, a second stack of layers configured to exhibit a third stop band for s-polarized radiation and a fourth stop band for p-polarized radiation incident on the second stack of layers at the oblique angle, where the cut-on wavelength for the first stop band is approximately equal to or larger than the cut-off wavelength for the third stop band. Optical components are further provided to include extended blocking functionality, and to permit stress balancing in thin-film coatings on opposite sides of a substrate.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: November 4, 2014
    Assignee: SEMROCK, Inc.
    Inventors: Ligang Wang, Craig Hodgson, Turan Erdogan
  • Patent number: 8879152
    Abstract: The present invention relates to an optical bandpass filter system that has at least one combination of a bandpass filter that provides a first nanostructured metallic layer (4) and a bandstop filter comprising a second nanostructured metallic layer (7), which are arranged one behind the other, and the layer thicknesses of which are different. The bandstop filter is tuned to the bandpass filter in such a way that it blocks a contiguous wavelength range that partially overlaps a pass-band width of the bandpass filter. With the suggested optical filter system it is possible to create various filter characteristics side by side in a small space with a small pass-band width.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: November 4, 2014
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
    Inventors: Stephan Junger, Wladimir Tschekalinskij, Norbert Weber
  • Patent number: 8861088
    Abstract: An optical filter 13 is provided with a quartz plate 2 and a filter group 3. The filter group 3 is constituted by combining a first filter 33 having transmission characteristics in the visible region and one preset band of the infrared region that is contiguous with the visible region, and a second filter 35 and a third filter 36 each having transmission characteristics in the visible region and another preset band of the infrared region that is removed from the visible region and having blocking characteristics in a band between the visible region and the other band of the infrared region. In the second filter 35 and the third filter 36, each of the bands in which blocking characteristics are obtained is approximately 150 nm or less, and the bands in which blocking characteristics are obtained overlap.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: October 14, 2014
    Assignee: Daishinku Corporation
    Inventor: Manabu Ohnishi
  • Patent number: 8861106
    Abstract: Systems for generating uniform monochromatic electromagnetic radiation that include an electromagnetic radiation source and a bandpass filter assembly to filter electromagnetic radiation emitted by the electromagnetic radiation source. The systems also include an optical integrating sphere to receive the filtered electromagnetic radiation and to uniformly scatter the filtered electromagnetic radiation within the optical integrating sphere, wherein the optical integrating sphere comprises an output to emit the uniformly scattered, filtered electromagnetic radiation.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: October 14, 2014
    Assignee: Raytheon Company
    Inventors: John R. Moore, Randall W. Zywicki
  • Patent number: 8830587
    Abstract: An apparatus for providing pump light of a first wavelength ?1 to a laser that emits a second wavelength ?2 has first and second lasers of the wavelength ?1 to direct light along first and second axes in a first direction. The first and second axes define a first plane P1. To form a composite light beam of wavelength ?1, a filter apparatus has a first filter on a first surface at an oblique angle to the first and second axes and that transmits ?1 and reflects ?2. A second filter on a second surface parallel to the first surface, reflects ?1 and transmits ?2. A third filter formed on the first surface coplanar with the first filter reflects ?1 and transmits ?2. The filter apparatus re-aligns the first and second axes along a second plane P2, orthogonal to P1 and parallel to the first direction.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: September 9, 2014
    Assignee: Corning Incorporated
    Inventors: Vikram Bhatia, Joshua Monroe Cobb
  • Publication number: 20140233105
    Abstract: The invention generally relates to optical filters that provide regulation and/or enhancement of chromatic and luminous aspects of the color appearance of light to human vision, generally to applications of such optical filters, to therapeutic applications of such optical filters, to industrial and safety applications of such optical filters when incorporated, for example, in radiation-protective eyewear, to methods of designing such optical filters, to methods of manufacturing such optical filters, and to designs and methods of incorporating such optical filters into apparatus including, for example, eyewear and illuminants.
    Type: Application
    Filed: August 30, 2013
    Publication date: August 21, 2014
    Inventors: Andrew W. Schmeder, Donald M. McPherson
  • Publication number: 20140210031
    Abstract: A variable optical filter is disclosed including a bandpass filter and a blocking filter. The bandpass filter includes a stack of alternating first and second layers, and the blocking filter includes a stack of alternating third and fourth layers. The first, second and fourth materials each comprise different materials, so that a refractive index of the first material is smaller than a refractive index of the second material, which is smaller than a refractive index of the fourth material; while an absorption coefficient of the second material is smaller than an absorption coefficient of the fourth material. The materials can be selected to ensure high index contrast in the blocking filter and low optical losses in the bandpass filter. The first to fourth layers can be deposited directly on a photodetector array.
    Type: Application
    Filed: January 28, 2014
    Publication date: July 31, 2014
    Inventors: Karen Denise HENDRIX, Charles A. HULSE, Richard A. BRADLEY, Jeffrey James KUNA
  • Publication number: 20140071534
    Abstract: According to one embodiment, a display device includes an interference filter including following layers, and a display layer. The first common layer includes first and second regions. The second common layer faces the first common layer. The first spacer layer is provided between the first and second common layers and includes first and second portions facing the first and second regions. The thickness of the first portion is different from the thickness of the second portion. The second spacer layer faces at least one of the first and second portions through the second common layer and is made of the same material as that of the first spacer layer. The coating layer faces the second common layer through the second spacer layer.
    Type: Application
    Filed: September 10, 2013
    Publication date: March 13, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hitoshi NAGATO, Takashi MIYAZAKI, Rei HASEGAWA, Kouji SUZUKI, Masaki ATSUTA
  • Patent number: 8507790
    Abstract: A solar element with increased efficiency and also a method for increasing the efficiency of a solar cell are provided. The solar cell comprises a luminescent element, an upconverter, and also at least one selectively reflecting structure.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: August 13, 2013
    Assignees: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V., Albert-Ludwigs-Universitaet Freiburg
    Inventors: Jan Christoph Goldschmidt, Philipp Loeper, Marius Peters
  • Publication number: 20130077029
    Abstract: According to one embodiment, an interference filter includes a base body, a lower semi-transmissive layer, and an upper semi-transmissive layer. The base body includes a major surface. The lower semi-transmissive layer is provided on the major surface. The upper semi-transmissive layer is provided on the lower semi-transmissive layer. The base body, the lower and upper semi-transmissive layers form a first region to selectively transmit blue light, a second region to selectively transmit green light, and a third region to selectively transmit red light, arranged in a plane parallel to the major surface. A distance between the lower semi-transmissive layer and the upper semi-transmissive layer in the second region is shorter than a distance between the lower semi-transmissive layer and the upper semi-transmissive layer in the first region, and shorter than a distance between the lower semi-transmissive layer and the upper semi-transmissive layer in the third region.
    Type: Application
    Filed: June 8, 2012
    Publication date: March 28, 2013
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Hitoshi NAGATO, Takashi Miyazaki, Yutaka Nakai, Hajime Yamaguchi
  • Patent number: 8398871
    Abstract: A method for designing a first optical filter, exhibiting a first filter performance satisfying a first preset criterion, and a second optical filter, exhibiting a second filter performance satisfying a second preset criterion, includes providing initial first and second filter designs for the first and second optical filters, respectively, as first and second ordered stacks of layers, respectively. A pair of layers, including a first layer, characterized by a first thickness, and a second layer, characterized by a second thickness, is selected from the first and second ordered stacks of layers. The first thickness is constrained to a first constrained thickness that is a positive integer multiple of the second thickness to yield a constrained first filter design. A predicted performance of the constrained first filter design is determined and compared with the first preset criterion for one of accepting and rejecting the constrained first filter design.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: March 19, 2013
    Assignee: OmniVision Technologies, Inc.
    Inventors: Lu Gao, Gary Duerksen, Paulo E. X. Silveira
  • Publication number: 20130063821
    Abstract: A photonic crystal structure includes a nano structure layer including a plurality of nano particles of various sizes, and a photonic crystal layer on the nano structure layer. The plurality of nano particles are spaced apart from each other. The photonic crystal layer has a non-planar surface, and is configured to reflect light of a particular wavelength.
    Type: Application
    Filed: August 1, 2012
    Publication date: March 14, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Deuk-seok Chung, Byong-gwon Song, Joon-won Bae, Young-jun Yun
  • Patent number: 8274739
    Abstract: A plasmonic Fabry-Perot filter includes a first partial mirror and a second partial mirror separated from the first partial mirror by a gap. At least one of the first partial mirror or the second partial mirror includes an integrated plasmonic optical filter array.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: September 25, 2012
    Assignee: NanoLambda, Inc.
    Inventors: Byounghee Lee, Byung Il Choi
  • Patent number: 8233219
    Abstract: Optical multilayer thin-film filters (OMTFFs) are disclosed. An exemplary filter includes a transparent substrate, a multilayer film (MF) on a surface of the substrate, and a top layer. The MF is of alternatingly laminated layers of a high-refractive-index (HRI) material and a low-refractive-index (LRI) material. The top layer is on an uppermost layer of the MF and is of a material having atoms of lower atomic weight than atoms of either the HRI or LRI materials. The OMTFFs are made in a vacuum environment by alternatingly laminating respective thin films of the HRI and LRI materials on the substrate. The top layer is formed on the MF. Between forming the MF and top layer is a suppression step in which the newly formed MF is exposed to moisture by briefly venting the vacuum to atmosphere. The moisture inhibits migration of the low-molecular-weight atoms into the HRI and LRI materials.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: July 31, 2012
    Assignee: Nihon Dempa Kogyo Co., Ltd.
    Inventors: Motoo Takada, Shinya Kikegawa, Toshimasa Nishi, Hiroto Ishikawa
  • Publication number: 20120170124
    Abstract: The present invention relates to a thin-film element (30) having an interference layer structure for security papers, value documents and the like, having at least two semitransparent absorber layers (34, 38) and at least one dielectric spacing layer (36) arranged between the at least two absorber layers. According to the present invention, it is provided that the two absorber layers (34, 38) are each formed from a material having a complex refractive index N whose real part n and imaginary part k differ at least in a portion of the visible spectral range by a factor of 5 or more.
    Type: Application
    Filed: September 10, 2010
    Publication date: July 5, 2012
    Applicant: GIESECKE & DEVRIENT GMBH
    Inventors: Christian Fuhse, Michael Rahm, Manfred Heim, Ralf Liebler
  • Patent number: 8160114
    Abstract: A single-mode, etched facet distributed Bragg reflector laser includes an AlGaInAs/InP laser cavity, a front mirror stack with multiple Fabry-Perot elements, a rear DBR reflector, and a rear detector. The front mirror stack elements and the rear reflector elements include input and output etched facets, and the laser cavity is an etched ridge cavity, all formed from an epitaxial wafer by a two-step lithography and CAIBE process.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: April 17, 2012
    Assignee: BinOptics Corporation
    Inventors: Alex A. Behfar, Kiyofumi Muro, Cristian B. Stagarescu, Alfred T. Schremer
  • Patent number: 8137869
    Abstract: A method for manufacturing and/or protecting an optical element, wherein the optical element has at least one surface comprising a profile having height differences, thereby providing cavities and elevations having a predetermined maximum height difference, includes providing a transmissive layer in the cavities and on the elevations of the optical elements, the transmissive layer having a first height in the cavities that is larger than the predetermined maximum height difference, and surfacing the transmissive layer after providing the transmissive layer such that the transmissive layer has a second height on the elevations that is substantially zero or larger, thereby providing a transmissive layer with a substantially planar surface.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: March 20, 2012
    Assignee: ASML Netherlands, B.V.
    Inventor: Levinus Pieter Bakker
  • Patent number: 8098431
    Abstract: Various embodiments of the invention relate to methods and systems for generating the color white in displays created from interferometric modulators and more specifically, to the generation of the color white through the use of reflected light at two wavelengths. In one embodiment, a display device displays the color white. The color white is generated by reflecting light from two pluralities of interferometric modulator types. The first modulator type reflects colored light at a specific wavelength. The second modulator type reflects colored light selected to be at a wavelength complementary to the first. The combined light reflected from the two types appears white in the display.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: January 17, 2012
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventor: Philip D. Floyd
  • Patent number: 8081384
    Abstract: A multilayer reflective film coated substrate includes a multilayer under film comprised of Mo/Si alternately-layered films, an intermediate layer in the form of a Si film, and a multilayer reflective film comprised of Mo/Si alternately-layered films for reflecting exposure light. The multilayer under film, the intermediate layer, and the multilayer reflective film are formed on a substrate in this order. Given that a cycle length of the multilayer under film is d bottom (unit:nm), a thickness of the intermediate layer is d Si (unit:nm), and a cycle length of the multilayer reflective film is d top (unit:nm), relationships of a formula (1) and a formula (2) are satisfied, the formula (1) given by n×d top?0.05?d bottom?n×d top+0.05 where n is a natural number equal to or greater than 1, and the formula (2) given by m×d top?1.2?d Si??m×d top+1.2 where m is an integer equal to or greater than 0.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: December 20, 2011
    Assignee: Hoya Corporation
    Inventors: Morio Hosoya, Takeyuki Yamada, Akira Ikeda
  • Patent number: 8040608
    Abstract: 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: Grant
    Filed: August 29, 2008
    Date of Patent: October 18, 2011
    Assignee: The General Hospital Corporation
    Inventors: Conor L. Evans, Johannes F. De Boer, Mattijs De Groot
  • Patent number: 7972004
    Abstract: 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: Grant
    Filed: April 18, 2008
    Date of Patent: July 5, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Terry Alan Bartlett, Paul L. Rancuret
  • Patent number: 7963676
    Abstract: A reflector window includes a light transmission window having a center and an outer edge and an optical coating of at least first and second materials having differing refractive indices deposited on a proximate side of the light transmission window. The optical coating includes a plurality of alternating layers of the first and second materials with each layer having a thickness which increases from the center to the outer edge of the light transmission window.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: June 21, 2011
    Inventor: Kuohua (Angus) Wu
  • Patent number: 7952804
    Abstract: 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: Grant
    Filed: November 19, 2007
    Date of Patent: May 31, 2011
    Assignee: Ricoh Company, Ltd.
    Inventor: Manabu Seo
  • Publication number: 20110026123
    Abstract: A wavelength-division apparatus and a wavelength combining apparatus are provided. Each of the wavelength-division apparatus and the wavelength combining apparatus includes a transparent block having one surface which is coated with an anti-reflective coating layer and the other surface which is coated with a partial transmitting coating layer. Each of the anti-reflective coating layer and the partial transmitting coating layer is coupled to a plurality of wavelength-selective filters that separate optical signals of different wavelengths through different paths other than a transmission path or a receiving path. Thus, the optical signals of the respective wavelengths output through the different paths can be used for various purposes such as monitoring the signal intensity and/or the signal quality.
    Type: Application
    Filed: May 4, 2010
    Publication date: February 3, 2011
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Joon-ki LEE, Sae-kyoung KANG, Jyung-chan LEE, Kwang-joon KIM
  • Patent number: 7864428
    Abstract: An optical recognition device is provided. The optical recognition device includes a transparent substrate, a patterned infrared reflective film formed thereon, and an infrared anti-reflective film sheltering a gap in a recognition pattern of the patterned infrared reflective film, wherein the patterned infrared reflective film reflects the recognition pattern by reflection of infrared light and transmission of visible light. The invention also provides a display incorporating the optical recognition device.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: January 4, 2011
    Assignee: AU Optronics Corp.
    Inventors: Pei-Yu Chen, Sheng-Wen Cheng, Chen-Hsien Liao
  • Patent number: 7835415
    Abstract: A single-mode, etched facet distributed Bragg reflector laser includes an AlGaInAs/InP laser cavity, a front mirror stack with multiple Fabry-Perot elements, a rear DBR reflector, and a rear detector. The front mirror stack elements and the rear reflector elements include input and output etched facets, and the laser cavity is an etched ridge cavity, all formed from an epitaxial wafer by a two-step lithography and CAIBE process.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: November 16, 2010
    Assignee: BinOptics Corporation
    Inventors: Alex A. Behfar, Kiyofumi Muro, Cristian B. Stagarescu, Alfred T. Schremer
  • Patent number: 7811725
    Abstract: A color filter substrate includes a transparent substrate, a first and second reflective layers, a spacer layer, and an interference layer. The spacer layer is interposed between the two reflective layers and includes a plurality of first, second and third regions that are distinguished from one another according to their respective thicknesses, where the first, second and third regions overlap red, green and blue pixel portions, respectively. An interference layer is formed on the second reflective layer at positions overlapping the red pixel portions.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: October 12, 2010
    Assignee: Wintek Corporation
    Inventors: Chien-Chung Chen, Chin-Pei Hwang
  • Patent number: 7804648
    Abstract: A multilayer reflective film coated substrate includes a multilayer under film comprised of Mo/Si alternately-layered films and a multilayer reflective film comprised of Mo/Si alternately-layered films for reflecting exposure light. The multilayer under film and the multilayer reflective film are formed on a substrate in this order. Given that a cycle length of the multilayer under film is d bottom (unit:nm) and a cycle length of the multilayer reflective film is d top (unit:nm), a relationship of a formula (1) is satisfied when d bottom>d top, the formula (1) given by (n+0.15)×d top?d bottom?(n+0.9)×d top where n is a natural number equal to or greater than 1.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: September 28, 2010
    Assignee: Hoya Corporation
    Inventors: Morio Hosoya, Takeyuki Yamada, Akira Ikeda
  • Patent number: 7790978
    Abstract: This invention relates to the field of thermophotovoltaic (TPV) direct energy conversion. In particular, TPV systems use filters to minimize parasitic absorption of below bandgap energy. This invention constitutes a novel combination of front surface filters to increase TPV conversion efficiency by reflecting useless below bandgap energy while transmitting a very high percentage of the useful above bandgap energy. In particular, a frequency selective surface is used in combination with an interference filter. The frequency selective surface provides high transmission of above bandgap energy and high reflection of long wavelength below bandgap energy. The interference filter maintains high transmission of above bandgap energy and provides high reflection of short wavelength below bandgap energy and a sharp transition from high transmission to high reflection.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: September 7, 2010
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Randolph J. Dziendziel, Paul F. Baldasaro, David M. DePoy
  • Patent number: 7684113
    Abstract: An imaging apparatus comprising an optical member in an optical path from a lens to an imaging device, said optical member comprising a water-repellent or water/oil-repellent coating, a first antireflection coating, an infrared-cutting glass, a lowpass filter, and an infrared-cutting coating in this order from the side of said lens.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: March 23, 2010
    Assignee: HOYA Corporation
    Inventors: Kazuhiro Yamada, Naohito Sasaki, Hiroyuki Nakayama
  • Patent number: 7675677
    Abstract: A pair of binoculars has lenses constituting optical filters with a transmissivity range within the wavelength range between about 650 nm and at least 800 nm and also with an additional transmissivity band within a wavelength range from about 310 nm to about 600 nm. The objects viewed with such a pair of binoculars appear as an image that is carried by a satin-finished metallic surface.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: March 9, 2010
    Assignee: Noctron Holding S.A.
    Inventor: Georg Diamantidis
  • Patent number: 7639910
    Abstract: An optical module is configured with a combination of a single-mode oscillating light source and an optical filter. In this optical module, the single-mode oscillating light source outputs a single-mode, frequency-modulated signal. Further, the optical filter converts the frequency modulation to an amplitude modulation. And, the single-mode oscillating light source and the optical filter are packaged without active alignment on the same substrate. Accordingly, it is possible to realize an optical module in a simple and low-cost configuration by packaging the single-mode oscillating light source and the optical filter by passive alignment, without active alignment, on the same substrate, and by using a simple optical filter such as a waveguide ring resonator, which converts a frequency modulation to an amplitude modulation.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: December 29, 2009
    Assignee: NEC Corporation
    Inventors: Hiroyuki Yamazaki, Takaaki Hatanaka
  • Patent number: 7564627
    Abstract: An optical element structured in accordance with the invention comprises a substrate with at least two zones with different optical functions. The coating systems in the two zones can in each case be subdivided into a zone-specific internal partial coating system and a complementary partial coating system that is common to all the zones, where the complementary partial coating system comprises at least one layer and in the zones in which the internal partial coating systems comprises at least one layer said coating system is arranged between the substrate and the complementary partial coating system.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: July 21, 2009
    Assignee: Oerlikon Trading AG, Trubbach
    Inventors: Claus Heine-Kempkens, Othmar Züger, Michael Hunziker
  • Patent number: 7527680
    Abstract: Data of a barometric pressure that a barometric pressure sensor outputs, and data of an air volume that an air-volume sensor outputs are input into a system control circuit. The system control circuit is provided with a table storing portion. In the table storing portion, a control table is stored. The control table is formed of a plus supplied-voltage value to fan power set by a barometric pressure value and an air-volume value, and a warning instruction. In a case that the warning instruction is selected based on the barometric pressure value and the air-volume value, the system control circuit turns on a warning-use LED so as to inform a user that a filter is clogged.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: May 5, 2009
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hirotake Horiguchi, Takeshi Higashino, Ryosuke Sato
  • Patent number: 7525730
    Abstract: Various embodiments of the invention relate to methods and systems for generating the color white in displays created from interferometric modulators and more specifically, to the generation of the color white through the use of reflected light at two wavelengths. In one embodiment, a display device displays the color white. The color white is generated by reflecting light from two pluralities of interferometric modulator types. The first modulator type reflects colored light at a specific wavelength. The second modulator type reflects colored light selected to be at a wavelength complementary to the first. The combined light reflected from the two types appears white in the display.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: April 28, 2009
    Assignee: IDC, LLC
    Inventor: Philip D. Floyd
  • Patent number: 7511888
    Abstract: A projection optical system having a multilayered film mirror arranged to provide an approximately uniform reflectance throughout a predetermined light incidence angle range to thereby assure a desired optical performance. A projection exposure apparatus having such a projection optical system, and a device manufacturing method using such an exposure apparatus. A non-periodic film is used in a reflection multilayered film upon a mirror having a largest light incidence angle range or a mirror having a largest average of light incidence angle, and this effectively reduces a pupil transmittance distribution in the projection optical system.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: March 31, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshiyuki Sekine
  • Publication number: 20090033222
    Abstract: In a plasma display apparatus of the preset invention, an external light shielding sheet configured to shield externally incident light to the greatest extent possible is disposed at the front, thus effectively implementing a black image and improving the bright and dark room contrast. Furthermore, pattern units of the external light shielding sheet are formed using a conductivity material. Accordingly, there is an advantage in that EMI emitted from a panel can be prevented from being radiated to the outside.
    Type: Application
    Filed: September 28, 2006
    Publication date: February 5, 2009
    Inventors: Yu Park, Tae Deok Seo, Hun Gun Park
  • Patent number: 7450306
    Abstract: An exemplary optical filter includes a substrate, a plurality of contiguous identical lower filter cavities formed on the substrate, and a plurality of contiguous upper filter cavities formed on the lower filter cavities. Each of the lower filter cavities includes two high refractive index layers and one low refractive index layer sandwiched between the high refractive index layers. Each of the upper filter cavities includes two low refractive index layers and one high refractive index layer sandwiched between the low refractive index layers. The plurality of upper filter cavities includes a first filter cavity, a plurality of second filter cavities, a third filter cavity, and a plurality of fourth filter cavities.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: November 11, 2008
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Ga-Lane Chen
  • Patent number: 7428102
    Abstract: An optical element which includes an optical block having a cavity part formed on an optical path and an inclined face formed in an internal face of the cavity part at a prescribed inclining angle with respect to a traveling direction of light. Multilayer films of the same structure are formed at least on the internal face of the cavity part and on an interface between a light incident end and/or emission end of the optical block and outside. The multilayer film formed on the incline face in the internal face of the cavity part has at least a wavelength selecting function for light to be used.
    Type: Grant
    Filed: December 9, 2005
    Date of Patent: September 23, 2008
    Assignee: Enplas Corporation
    Inventors: Akira Niwayama, Eddie Azuma
  • Patent number: 7405872
    Abstract: A combination of filters for filtering selected wavelengths of electromagnetic radiation is provided on a transparent substrate such as a plastic film or glazing of a window. The combination of filters prevents or attenuates the passage of wavelengths through the substrate into a building, where the passage of the wavelengths into the building could adversely affect people or machinery within the building. The combination of filters is useful improve wireless networks performance by blocking or attenuating undesired electromagnetic interference, and radio frequency interference.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: July 29, 2008
    Assignees: ASTIC Signals Defenses LLC, CPFilms, Inc.
    Inventors: Deron Simpson, Lisa Y. Winckler
  • Patent number: 7394986
    Abstract: The invention relates to wavelength-selective optical filters for allowing light of a narrow optical spectral band, centered around a wavelength (?c) to pass through them, while reflecting the wavelengths lying outside this band. According to the invention, the transfer function (T1,2(?)) of the component is defined by multiplying two transfer functions of spectrally offset Fabry-Perot filters.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: July 1, 2008
    Assignee: Atmel Grenoble S. A.
    Inventors: Romain Ramel, Sylvie Jarjayes, Stéphane Gluck
  • Patent number: 7355792
    Abstract: A CWDM filter of the present invention comprises a substrate; a first portion formed on the substrate having at least two first stacking structures; a second portion superposed on the first portion including at least two second stacking structures; and a first matching layer sandwiched between the first and second portions. Each of the first stacking structures of the first portion has a Fabry-Perot cavity and a first coupling layer which are stacked over each other in turn from the substrate. Each second stacking structure has a (HnLH) structure and a second coupling layer, wherein n represents a positive integer greater than 1, L represents a low index layer with a thickness of ?o/4, H represents a high index layer with a thickness of ?o/4, and ?o is the center wavelength of said noise.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: April 8, 2008
    Assignee: Asia Optical Co., Inc
    Inventor: Chang Chen E Shang
  • Patent number: 7295368
    Abstract: A combination of filters for filtering selected wavelengths of electromagnetic radiation is provided on a transparent substrate such as a plastic film or glazing of a window. The combination of filters prevents or attenuates the passage of wavelengths through the substrate which would pose a security risk. The combination of filters is useful to prevent unauthorized data collection and information exchange from or within buildings or otherwise prevent such unauthorized data collection and information exchange from, for example, computer monitors or screens, personal digital assistance, and local area networks. The substrate with the combination of filters may be in the form of a bag or a tent.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: November 13, 2007
    Assignees: Astic Signals Defenses, LLC, CPFilms, Inc.
    Inventors: Deron Simpson, Lisa Y. Winckler, Ronald L. Spraker
  • Patent number: 7209608
    Abstract: Provided is a Fabry-Perot type wavelength tunable optical filter, comprising a first mirror; a second mirror located over the first mirror; a driving body located over the first mirror, and having both ends fixed to the first mirror through a spacer; a plurality of electrodes, each formed on both ends of the driving body; a rod structure connecting a center of the driving body and the second mirror; a plurality of fixing means, each fixed to the first mirror at both sides of the rod structure through the spacer; and a plurality of elastic bodies connecting the rod structure with the plurality of fixing means and acting as a rotational axis. And the mirror is driven by the rod structure acting as a lever that has an elastic body as a rotational axis, when warping is generated by electro-thermal expansion, electromagnetic force or external force. Thereby the mirror can be driven in the larger wavelength tunable range and the low power consumption.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: April 24, 2007
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Chang Kyu Kim, Myung Lae Lee, Chi Hoon Jun, Chang Auck Choi, Yun Tae Kim
  • Patent number: 7199928
    Abstract: An optical element has a structure in that a first mirror stack layer is formed on a substrate. A first transparent conductive film, a conductive buffer layer, a spacer layer having a primary or secondary electrooptic effect, a conductive buffer layer and a second transparent conductive film are stacked thereon in succession; and a second mirror stack layer is further formed thereon. A voltage is applied between the first and second transparent conductive films. The applied voltage change the refractive index of the spacer, changes a wavelength to be transmitted through or reflected from the layer.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: April 3, 2007
    Assignee: Santec Corporation
    Inventor: Noboru Uehara
  • Patent number: 7177075
    Abstract: A combination of filters for filtering selected wavelengths of electromagnetic radiation is provided on a transparent substrate such as a plastic film or glazing of a window. The combination of filters prevents or attenuates the passage of wavelengths through the substrate which would pose a security risk. The combination of filters is useful to prevent unauthorized data collection and information exchange from or within buildings or otherwise prevent such unauthorized data collection and information exchange from, for example, computer monitors or screens, personal digital assistance, and local area networks. The substrate with the combination of filters may be in the form of a bag or a tent.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: February 13, 2007
    Assignees: Astic Signals Defenses, LLC, CPFilms, Inc.
    Inventors: Deron Simpson, Lisa Y. Winckler, Ronald L. Spraker