Selective Wavelength Transmission Or Reflection Patents (Class 359/589)
  • Patent number: 10613262
    Abstract: An optical laminate includes a wavelength selective reflective element which is provided with a reflection layer selectively reflecting light in a specific reflection wavelength region, and an absolute phase adjustment layer which is provided on at least one surface side of the wavelength selective reflective element and has optical isotropy, and the absolute phase adjustment layer has an in-plane distribution of at least one of a refractive index or a film thickness, and thus has an in-plane distribution of an optical path length in a film thickness direction.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: April 7, 2020
    Assignee: FUJIFILM CORPORATION
    Inventors: Yukito Saitoh, Daisuke Kashiwagi
  • Patent number: 10606100
    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: Grant
    Filed: September 12, 2017
    Date of Patent: March 31, 2020
    Assignee: ENCHROMA, INC.
    Inventors: Andrew W. Schmeder, Donald M. McPherson
  • Patent number: 10488568
    Abstract: An apparatus is disclosed comprising an optical filter array including an array of optical filter elements; wherein each optical filter element has opposing mutually parallel principal faces connected by sidewalls including at least one pair of opposing trapezoidal sidewalls and at least one pair of opposing sidewalls that are not mutually parallel; and wherein the opposing mutually parallel principal faces of the filter elements collectively define optical entrance and exit apertures of the optical filter array and include interference filters. Further disclosed is a method of illuminating such a filter array.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: November 26, 2019
    Assignee: Materion Corporation
    Inventors: Kevin R. Downing, Michael J. Tatarek
  • Patent number: 10359552
    Abstract: An optical filter may reduce the frequency and/or severity of photophobic responses or for modulating circadian cycles by controlling light exposure to cells in the human eye in certain wavelengths, such as 480 nm and 590 nm, and a visual spectral response of the human eye. The optical filter may disrupt the isomerization of melanopsin in the human eye reducing the availability of the active isoform, whereas the attenuation of light weighted across the action potential spectrum of the active isoform attenuates the phototransduction cascade leading to photophobic responses. Embodiments of an optical filter are described. In one embodiment an optical filter may be configured to transmit less than a first amount of light in certain wavelengths, and to transmit more than a second amount of light weighted across the visual spectral response. Methods of use and methods of manufacturing optical filters are also described.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: July 23, 2019
    Assignee: University of Utah Research Foundation
    Inventors: Steven M. Blair, Bradley Jay Katz
  • Patent number: 10281622
    Abstract: A multilayer polymeric reflector is provided which comprises: a) a plurality of first optical layers, each first optical layer comprising a polyester having terephthalate comonomer units and ethylene glycol comonomer units, the polyester having a glass transition temperature, where each first optical layer is oriented, and b) a plurality of second optical layers disposed in a repeating sequence with the plurality of first optical layers, each second optical layer comprising a blend of polymethyl methacrylate (PMMA) and polyvinylidene fluoride (PVDF), where the blend has a glass transition temperature less than the glass transition temperature of the polyester comprising the first optical layers, and where the amount of PVDF in the PMMA/PVDF blend is greater than and not equal to about 40% and not more than about 65%. Articles comprising the multilayer polymeric reflector are also provided.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: May 7, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Huiwen Tai
  • Patent number: 10277009
    Abstract: Provided are electromagnetic wave reflectors and optical devices including the same. An electromagnetic wave reflector may include a plurality of layers which have an aperiodic structure and/or thickness. The plurality of layers may satisfy a condition of spatial coherence with respect to electromagnetic waves. The electromagnetic wave reflector may include a plurality of first material layers including a first material having a first refractive index and a plurality of second material layers including a second material having a second refractive index different from the first refractive index. At least two of the plurality of first material layers may have different thicknesses. At least two of the plurality of second material layers may have different thicknesses. At least one of the plurality of first material layers and at least one of the plurality of second material layers may have different thicknesses.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: April 30, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Heejeong Jeong, Chanwook Baik
  • Patent number: 10229955
    Abstract: A organic electroluminescence device includes: a plurality of pixels each including an organic layer and a second electrode in this order on a first electrode having light reflectivity, and each configured to emit light of one wavelength out of two or more different wavelengths, the organic layer including an organic electroluminescence layer; and a black matrix layer provided on light emission side of the second electrode, and having first apertures for the respective pixels. The black matrix layer has inclined surfaces inside the respective first apertures, and inclination angles of the inclined surfaces are set, based on emission wavelengths of the pixels.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: March 12, 2019
    Assignee: Sony Corporation
    Inventors: Koji Kikuchi, Mamoru Suzuki
  • Patent number: 10209443
    Abstract: Disclosed is a multi-wavelength transmission apparatus including a wavelength divider to divide an optical signal by wavelength and output wavelength-divided optical signals to different positions, the optical signal being received from an optical circulator, a first cylindrical lens to diverge the wavelength-divided optical signals along an X axis and a Y axis and allow the wavelength-divided optical signals to be promoted in a Z-direction, a second cylindrical lens to diverge optical signals output from the first cylindrical lens along the X axis and the Y axis and allow the output optical signals to be promoted in the Z-direction, and a reflector to reflect optical signals output from the second cylindrical lens toward the second cylindrical lens, the first cylindrical lens being identical in shape to the second cylindrical lens and rotated by 90° in an Y-axial direction based on the second cylindrical lens.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: February 19, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyun Seo Kang, Eun Kyoung Jeon, Jaisang Koh, Keo-Sik Kim, Sung Chang Kim, Jeong Eun Kim, Ji Hyoung Ryu, Hyoungjun Park, Dong Hoon Son, Chan Il Yeo, Dongsoo Lee, Seihyoung Lee, Young Soon Heo
  • Patent number: 10132963
    Abstract: An optical element includes an optical surface having a multilayer film. The multilayer film comprises a stack that includes a first film having a first refractive index for a used wavelength and a second film having a second refractive index for the used wavelength smaller than the first refractive index. Outermost layers of the stack are configured by the first films. A film configuration of the stack has symmetry along with a stack direction. The predetermined conditional expressions are satisfied.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: November 20, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Daisuke Sano
  • Patent number: 9998252
    Abstract: In one embodiment, each of the output/input ports of each one of a plurality of optical splitters is connected to one of a plurality of optical switches by means of optical fibers without any fusion splicing in a majority of the optical fibers, and each of the input/output ports of each one of the switches is connected to one of the optical splitters by means of the optical fibers without any fusion splicing in a majority of the optical fibers. Each of the output/input ports of each one of the optical splitters may be directly connected to the ferrule and one of the input/output ports of one of the switches by the optical fibers. The optical splitters may be implemented in at least one planar lightwave circuit (PLC) chip. Optionally, at least one fiber holder defining a plurality of channels therein may be used to hold the optical fibers each of which is aligned with a corresponding output/input port of one of the optical splitters.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: June 12, 2018
    Assignee: DICON FIBEROPTICS, INC.
    Inventor: Ho-Shang Lee
  • Patent number: 9988303
    Abstract: A glass substrate provided with a coating film, including a glass substrate and a coating film containing at least one TiO2 layer having a refractive index of at least 2.20 at a wavelength of 632 nm, formed by low temperature plasma CVD method on the glass substrate, and a method for producing a glass substrate provided with a coating film, which includes forming a TiO2 layer on a glass substrate by low temperature plasma CVD method using a film-forming material containing at least one member selected from an alkoxide type titanium material, an amide type titanium material and a halide type titanium material, at a plasma power density of at least 55 kW/m at a film-forming rate of from 15 to 200 nm·m/min.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: June 5, 2018
    Assignee: Asahi Glass Company, Limited
    Inventors: Hiroshi Hanekawa, Nobutaka Aomine, Hirotomo Kawahara, Yuki Aoshima, Kazunobu Maeshige
  • Patent number: 9964790
    Abstract: The present disclosure provides a liquid crystal display panel and a liquid crystal display device. The liquid crystal display panel includes a first substrate and a second substrate disposed opposite to the first substrate. The first substrate includes a first common electrode and a dielectric layer. The second substrate includes a second common electrode and a pixel electrode. The dielectric layer includes at least two dielectric sub-layers in a region corresponding to each pixel unit. Dielectric constants of the at least two dielectric sub-layer are different from each other.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: May 8, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiaoming Lu, Teruaki Suzuki
  • Patent number: 9915758
    Abstract: A mold for manufacturing an optical element is provided with a base material, and a recessing and protruding layer formed on a surface of the base material. The recessing and protruding structure of the recessing and protruding layer having a plurality of areas continuously arranged in a positional relationship in which the central point of seven adjacent protrusions is an intersection point of diagonal lines of six vertices of a regular hexagon, and the areas, shapes, and crystal orientations of the plurality of areas are random.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: March 13, 2018
    Assignee: OJI HOLDINGS CORPORATION
    Inventors: Kotaro Dai, Kei Shinotsuka, Yoshihisa Hatta
  • Patent number: 9835495
    Abstract: A light beam measurement device includes: a polarization measurement unit including a first measurement beam splitter provided on an optical path of a laser beam and configured to measure a polarization state of the laser beam having been partially reflected by the first measurement beam splitter; a beam profile measurement unit including a second measurement beam splitter provided on the optical path of the laser beam and configured to measure a beam profile of the laser beam having been partially reflected by the second measurement beam splitter; and a laser beam-directional stability measurement unit configured to measure a stability in a traveling direction of the laser beam, while the first measurement beam splitter and the second measurement beam splitter are made of a material containing CaF2.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: December 5, 2017
    Assignee: Gigaphoton Inc.
    Inventors: Masato Moriya, Osamu Wakabayashi, Yoshinobu Watabe
  • Patent number: 9684140
    Abstract: An optical device and an optic transceiver device are provided. The optical device includes a light splitting surface. The optical device further includes a first surface and a second surface disposed opposite to each other and parallel to each other. The light splitting surface separately intersects the first surface and the second surface. An angle between the light splitting surface and the first surface is not equal to 90 degrees. A medium between the light splitting surface and the first surface and a medium between the light splitting surface and the second surface are the same. The medium is formed by a light transmissive material.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: June 20, 2017
    Assignees: Hisense Broadband Multimedia Technologies Co., Ltd., Hisense USA Corp., Hisense International Co., Ltd.
    Inventor: Haixiang Zhang
  • Patent number: 9590391
    Abstract: In a reflector including an AlGaN layer, an InGaN layer, and a GaN layer placed therebetween, high reflectivity and a wide reflection band are achieved. A reflector includes a substrate containing GaN; first layers containing AlxGa1-xN; second layers containing InyGa1-yN; and a third layer containing GaN, the first, second, and third layers being stacked on the substrate. The first and second layers are alternately stacked, the third layer is placed between one of the first layers and one of the second layers, x and y satisfy a specific formula, the first layers have a thickness less than the thickness of the second layers, and the second layers have an optical thickness of ?/8 to 3?/8, where ? is the central wavelength of the reflection. band of the reflector.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: March 7, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takeshi Kawashima
  • Patent number: 9544065
    Abstract: A method of transmitting light is disclosed. The method comprises: transmitting a first light pulse into a medium to form in the medium a filamented region that is capable of guiding light, and transmitting a second light into the filamented region, wherein the second light is a pulsed light or continues wave light, and wherein the second light is transmitted at least 10 nanoseconds after the first light pulse.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: January 10, 2017
    Assignee: Technion Research & Development Foundation Limited
    Inventors: Mordechai Segev, Oren Cohen, Liad Levi
  • Patent number: 9488827
    Abstract: The object is to easily expand a variable range of selective wavelengths without enlarging a device. A spectral device 1 of the present invention includes four band pass filters 11a to 11d through which a light L2 from a light source 3 is selectively transmitted within a wavelength range according to an incident angle of the light L2, and a tabular rotary table 10 in which the band pass filters 11a to 11d are installed upright on a principal surface 10a, and which is made rotatable around a rotational center C1 along the principal surface 10a, and the four band pass filters 11a to 11d are respectively disposed so that optical incidence planes 12 or optical emission planes 13 are inclined with respect to lines connecting the rotational center C1 on the principal surface 10a of the rotary table 10 and center points 15a and 15d of the band pass filters 11a to 11d.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: November 8, 2016
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Fumitsugu Fukuyo, Michiharu Yonezawa
  • Patent number: 9354369
    Abstract: An optical filter having a passband at least partially overlapping with a wavelength range of 800 nm to 1100 nm is provided. The optical filter includes a filter stack formed of hydrogenated silicon layers and lower-refractive index layers stacked in alternation. The hydrogenated silicon layers each have a refractive index of greater than 3 over the wavelength range of 800 nm to 1100 nm and an extinction coefficient of less than 0.0005 over the wavelength range of 800 nm to 1100 nm.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: May 31, 2016
    Assignee: Viavi Solutions Inc.
    Inventors: Karen Denise Hendrix, Richard A. Bradley, Marius Grigonis, Georg J. Ockenfuss
  • Patent number: 9348070
    Abstract: The present invention relates to improvements in security devices that can be used in various authenticating or security applications, and in particular to an optically variable security device which can be viewed under low light conditions. The security device comprises a light deflection structure having a first side and a second opposing side. A colorshifting layer is applied to the first side of the light deflection structure and a reflection layer is applied to at least a first region of the second side of the light deflection structure so as to provide a strong reflection in a direction substantially parallel to the incident light source when the direction of the incident light is at an angle away from the normal to the security device. The security device has at least one second region in which the reflection layer is absent, said first and second regions defining indicia.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: May 24, 2016
    Assignee: De La Rue International Limited
    Inventors: Adam Lister, James Peter Snelling
  • Patent number: 9274407
    Abstract: A phosphor device of an illumination system is provided. The illumination system emits a first waveband light and has an optical path. The phosphor device includes a first section and a first phosphor agent. The first phosphor agent is coated on the first section. After the first waveband light is received by the first phosphor agent, the first waveband light is converted into a third waveband light, and the third waveband light is directed to the optical path, so that the third waveband light is separated into at least two color lights along the optical path.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: March 1, 2016
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Bor Wang, Keh-Su Chang, Chien-Hao Hua
  • Patent number: 9123669
    Abstract: A display unit is provided. The display unit includes a plurality of pixels having first to third sub-pixels each of which corresponds to respective colors of red, green, and blue, and a fourth sub-pixel exhibiting higher luminance than the first to third sub-pixels. In each of the pixels, the first to fourth sub-pixels have light-emitting devices. In the first to third sub-pixels, color filters are provided, and in the fourth sub-pixel, the transmittance of light emitted from the light-emitting device is configured to be reduced at a partial or whole region of the fourth sub-pixel. A difference in the transmittance among the first to third sub-pixels having the color filters and the fourth sub-pixel having no color filter is reduced to ensure an excellent luminance balance, which makes it easy to represent desired chromaticity.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: September 1, 2015
    Assignee: JOLED, INC.
    Inventor: Yuusuke Fujino
  • Patent number: 9057840
    Abstract: An optical filter comprising a substrate and a dielectric multilayer film formed on at least one surface of the substrate, wherein the substrate comprises an aromatic polyether-based polymer having a glass transition temperature (Tg), measured via differential scanning calorimetry (DSC, heating rate: 20° C./min), of from 230 to 350° C.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: June 16, 2015
    Assignee: JSR CORPORATION
    Inventors: Motoki Okaniwa, Takaaki Uno, Shintaro Fujitomi, Takashi Okada, Toshihiro Otsuki, Katsuya Nagaya
  • Publication number: 20150146166
    Abstract: Optical lenses are described and include a polymeric interference filter disposed on a curved polymeric substrate. The optical lens has an average light transmission of less than 2% across a band of blue light from 400 nm to at least 420 and up to 440 nm and substantially transmits blue light greater than 450 nm.
    Type: Application
    Filed: November 27, 2013
    Publication date: May 28, 2015
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Michael F. Weber, James E. Watson, Mark R. Strenger, Stephen A. Johnson, Chad R. Wold
  • Patent number: 9040992
    Abstract: A display device includes a laminated wiring formed of a low-resistance conductive film, and a low-reflection film mainly containing Al and functioning as an antireflective film which are sequentially arranged on a transparent substrate, a wiring terminal part provided at an end part of the laminated wiring and has the same laminated structure as that of the laminated wiring, and an insulating film for covering the laminated wiring and the wiring terminal part, in which the insulating film side serves as a display surface side, the wiring terminal part has a first opening part penetrating the insulating film and the low-reflection film and reaching the low-resistance conductive film, and an outer peripheral portion of the first opening part has a laminated structure of the low-resistance conductive film, the low-reflection film, and the insulating film, in at least one part.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: May 26, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masami Hayashi, Kenichi Miyamoto, Kazushi Yamayoshi, Junichi Tsuchimichi
  • Patent number: 9019606
    Abstract: An optical element has layers formed on a substrate, including alternating first and second layers having first and second refractive indices, nL and nH that exhibit a spectral characteristic, providing, for incident light at a predetermined wavelength and directed toward the optical element within a range of angles bounded by first and second incident angles ?1 and ?2, between 0 and 80 degrees and differing by at least 1 degree, substantially linear polarization-averaged attenuation of the incident light energy wherein, for any incident angle ?n between ?1 and ?2, A?n is the corresponding polarization-averaged attenuation, and wherein the polarization-averaged attenuation at A?n at angle ?1 is less than or equal to an optical density value of 0.2 and the polarization-averaged attenuation A?n at angle ?2 exceeds an optical density value of 4.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: April 28, 2015
    Assignee: Semrock, Inc.
    Inventors: Ligang Wang, Turan Erdogan
  • Publication number: 20150092274
    Abstract: An optical filter device includes a wavelength variable interference filter, a housing that stores the wavelength variable interference filter, and a bonding member that fixes a movable substrate to the housing. The housing includes a fixing portion that comes into contact with the bonding member, the fixing portion includes a pedestal fixing surface (first surface) facing a portion of a surface of the movable substrate, a sidewall fixing surface (second surface), continuous with a portion of a periphery of the pedestal fixing surface, which faces a lateral side of the movable substrate, and an intersection surface (third surface) continuous from a remaining portion in a periphery of the pedestal fixing surface in a direction away from the movable substrate, and the bonding member is provided between the substrate surface and the pedestal fixing surface, and between the lateral side and the sidewall fixing surface.
    Type: Application
    Filed: September 23, 2014
    Publication date: April 2, 2015
    Inventors: Yasushi MATSUNO, Daisuke SAITO, Hideo IMAI, Shigemitsu KOIKE
  • Patent number: 8974065
    Abstract: An optical body includes a substrate having a concave-convex surface, a reflecting layer formed on the concave-convex surface, and an optical layer formed on the reflecting layer to embed the concave-convex surface, wherein the reflecting layer directionally reflects light, the concave-convex surface is made up of a plurality of triangular pillars arrayed in a one-dimensional pattern, and the triangular pillar has an apex angle ? and a slope angle ?, the apex angle ? and the slope angle ? satisfying a formula (1) or (2) given below: 30???4.5??285(70???80)??(1) 30????1.5?+195(80???100)??(2).
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: March 10, 2015
    Assignee: Dexerials Corporation
    Inventors: Hironori Yoshida, Tsutomu Nagahama, Masashi Enomoto
  • Patent number: 8958156
    Abstract: The present disclosure relates to thin film optical interference filters. The filters include a substrate and a plurality of alternating material layers deposited on the substrate. When operated at about 45° angle of incidence, the filters exhibit at least one of improved polarization splitting, edge steepness, bandpass bandwidth, and blocking, relative to conventional thin film interference filters.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: February 17, 2015
    Assignee: Semrock, Inc.
    Inventors: Turan Erdogan, Ligang Wang
  • Patent number: 8953244
    Abstract: 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: Grant
    Filed: June 17, 2011
    Date of Patent: February 10, 2015
    Assignee: Yazaki Corporation
    Inventor: Shuichi Ishibashi
  • Patent number: 8947782
    Abstract: A wavelength variable interference filter includes: a first movable mirror disposed on a first substrate; a second movable mirror disposed so as to be opposed to the first movable mirror with a predetermined gap interposed therebetween; and an electrostatic actuator which varies the length of the gap between the mirrors. The first substrate has a first movable portion on which the first movable mirror is disposed, and a first linkage portion which holds the first movable portion in such a manner that the first movable portion can shift in the thickness direction of the substrate. The second substrate has a second movable portion on which the second movable mirror is disposed, and a second linkage portion which holds the second movable portion in such a manner that the second movable portion can shift in the thickness direction of the substrate.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: February 3, 2015
    Assignee: Seiko Epson Company
    Inventors: Nozomu Hirokubo, Koji Kitahara
  • Publication number: 20150009556
    Abstract: In forming an optical thin film on a curved surface of a material to be deposited, a specific space, which is part of a space in a processing chamber and is a space between an arrangement part and a target, is surrounded by a shielding part. In this state, when deposition is performed by a sputtering step in which a voltage is applied to the target in the processing chamber which is in a vacuum state and supplied with an active gas and an inert gas, an optical thin film of a substantially equal optical thickness is formed on the curved surface.
    Type: Application
    Filed: December 28, 2012
    Publication date: January 8, 2015
    Inventors: Shuichiro Kawagishi, Teruo Yamashita
  • Patent number: 8928797
    Abstract: Optical apparatus includes an image sensor and an optical assembly, which is configured to focus optical radiation via an aperture stop onto the image sensor. The optical assembly includes a plurality of optical surfaces, consisting of a first, curved surface through which the optical radiation enters the assembly, a final surface through which the rays exit the assembly toward the image sensor, and at least two intermediate surfaces between the first and final surfaces. An interference filter, which has a center wavelength and a passband no greater than 4% of the center wavelength, and includes a coating formed on one of the optical surfaces. All rays of the optical radiation passing through the aperture stop are incident on the coating over a range of incidence angles with a half-width that is no greater than three fourths of the numerical aperture of the optical assembly.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: January 6, 2015
    Assignee: Apple Inc.
    Inventors: Alexander Shpunt, Haim Bezdin, Shimon Yalov
  • Publication number: 20150002809
    Abstract: An optical device including an optical substrate including a first surface having a first zone provided with first selective interferential filtering element for selectively inhibiting transmission of incident light based on the wavelength spectrum of the incident light, the first selective interferential filtering being configured to inhibit, at a first rate of rejection, transmission of a first selected range of wavelengths of incident light, incident on the first zone within a first selected range of angles of incidence, wherein the first selected range of angles of incidence is determined based on at least one main line of sight of a user.
    Type: Application
    Filed: December 6, 2012
    Publication date: January 1, 2015
    Applicants: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE), UNIVERSITE PARIS 6 PIERRE ET MARIE CURIE
    Inventors: Denis Cohen-Tannoudji, Coralie Barrau, Thierry Pierre Villette, Jose-Alain Sahel, Serge Picaud, Emilie Arnault
  • Patent number: 8922690
    Abstract: An image sensor including a pixel unit, the pixel unit including a photodiode, a first color filter and a second color filter each disposed in a different position on a plane above the photodiode, and a first on-chip lens disposed over the first color filter and a second on-chip lens disposed over the second color filter.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: December 30, 2014
    Assignee: Sony Corporation
    Inventor: Masashi Nakata
  • Patent number: 8915600
    Abstract: An optical body includes a substrate having a concave-convex surface, a reflecting layer formed on the concave-convex surface, and an optical layer formed on the reflecting layer to embed the concave-convex surface, wherein the reflecting layer directionally reflects light, the concave-convex surface is made up of a plurality of triangular pillars arrayed in a one-dimensional pattern, and the triangular pillar has an apex angle ? and a slope angle ?, the apex angle ? and the slope angle ? satisfying a formula (1) or (2) given below: 30???4.5??285(70???80)??(1) 30????1.5?+195(80???100)??(2).
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: December 23, 2014
    Assignee: Dexerials Corporation
    Inventors: Hironori Yoshida, Tsutomu Nagahama, Masashi Enomoto
  • Publication number: 20140353959
    Abstract: A security element for manufacturing value documents, such as banknotes, checks or the like, has an upper side making available several micro images, in particular for a lens magnification arrangement. Each micro image is formed by a micro cavity structure having a multitude of micro cavities disposed side by side, the micro cavities have an extension of 0.5 to 3 ?m respectively in a spatial direction disposed parallel to the upper side. The micro cavity structure is optically reflective or highly refractive on its surface, so that on the surface at least partial reflection takes place, and for each micro image micro cavities of at least a first and a second type are present, which differ by an aspect ratio of the micro cavities, whereby each micro image is structured by the at least two different types of micro cavities.
    Type: Application
    Filed: December 19, 2012
    Publication date: December 4, 2014
    Inventor: Hans Lochbihler
  • Publication number: 20140346766
    Abstract: The invention relates to an optically variable element as well as a method for the production thereof. In a first area the optically variable element has at least one first color region which in the event of illumination generates a color dependent on the angle of observation and/or angle of illumination. The first color region has two or more zones (41 to 47) arranged next to each other. The two or more zones arranged next to each other have in each case a width and/or length dimension of less than 300 ?m. In at least one first zone (41) of the zones (41 to 47) of the first color region a thin-film interference filter (15) is provided with at least one interference layer (17). The interference layer (17) of the thin-film interference filter (15) has a first average thickness (d1) in the first zone (41).
    Type: Application
    Filed: November 28, 2012
    Publication date: November 27, 2014
    Inventors: Harald Walter, Wayne Robert Tompkin, Sebastian Mader
  • Patent number: 8889251
    Abstract: In one embodiment, a multilayer dielectric coating for use in an alkali laser includes two or more alternating layers of high and low refractive index materials, wherein an innermost layer includes a thicker, >500 nm, and dense, >97% of theoretical, layer of at least one of: alumina, zirconia, and hafnia for protecting subsequent layers of the two or more alternating layers of high and low index dielectric materials from alkali attack. In another embodiment, a method for forming an alkali resistant coating includes forming a first oxide material above a substrate and forming a second oxide material above the first oxide material to form a multilayer dielectric coating, wherein the second oxide material is on a side of the multilayer dielectric coating for contacting an alkali.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: November 18, 2014
    Assignee: Lawrence Livermore National Security, LLC.
    Inventors: Thomas F. Soules, Raymond J. Beach, Scott C. Mitchell
  • Publication number: 20140327967
    Abstract: An optical filter may reduce the frequency and/or severity of photophobic responses or for modulating circadian cycles by controlling light exposure to cells in the human eye in certain wavelengths, such as 480 nm and 590 nm, and a visual spectral response of the human eye. The optical filter may disrupt the isomerization of melanopsin in the human eye reducing the availability of the active isoform, whereas the attenuation of light weighted across the action potential spectrum of the active isoform attenuates the phototransduction cascade leading to photophobic responses. Embodiments of an optical filter are described. In one embodiment an optical filter may be configured to transmit less than a first amount of light in certain wavelengths, and to transmit more than a second amount of light weighted across the visual spectral response. Methods of use and methods of manufacturing optical filters are also described.
    Type: Application
    Filed: July 22, 2014
    Publication date: November 6, 2014
    Inventors: Steven M. Blair, Bradley Jay Katz
  • Publication number: 20140312213
    Abstract: A tilt structure includes a shaft section formed on a substrate section, a tilt structure film having one end formed on an upper surface of the shaft section, and the other end bonded to the substrate section, and a thin film section provided to the tilt structure film, located on a corner section composed of the upper surface of the shaft section and a side surface of the shaft section, and having a film thickness thinner than the tilt structure film, the tilt structure film is bent in the thin film section, and an acute angle is formed by the substrate section and the tilt structure film.
    Type: Application
    Filed: July 1, 2014
    Publication date: October 23, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takahiko YOSHIZAWA
  • Publication number: 20140307309
    Abstract: Optical filter elements each include a parallelogram-shaped substrate with parallel light entrance and light exit surfaces and parallel slanted sidewalls slanted at an angle, and an interference filter disposed on one or both of the light entrance surface and the light exit surface. The optical filter elements are bonded together at the slanted sidewalls to form the optical filter array. Light is filtered by illuminating the optical filter array at an angle ? equal to or corresponding to the angle of the slanted sidewalls. In some embodiments the angle of the slanted sidewalls corresponds to the angle-of-incidence ? by Snell's law.
    Type: Application
    Filed: April 11, 2014
    Publication date: October 16, 2014
    Applicant: MATERION CORPORATION
    Inventors: Kevin R. Downing, Ian S. Tribick
  • 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: 8861087
    Abstract: A multi-layer photonic structure may include alternating layers of high index material and low index material having a form [H(LH)N] where, H is a layer of high index material, L is a layer of low index material and N is a number of pairs of layers of high index material and layers of low index material. N may be an integer ?1. The low index dielectric material may have an index of refraction nL from about 1.3 to about 2.5. The high index dielectric material may have an index of refraction nH from about 1.8 to about 3.5, wherein nH>nL and the multi-layer photonic structure comprises a reflectivity band of greater than about 200 nm for light having angles of incidence from about 0 degrees to about 80 degrees relative to the multi-layer photonic structure. The multi-layer photonic structure may be incorporated into a paint or coating system thereby forming an omni-directional reflective paint or coating.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: October 14, 2014
    Assignee: Toyota Motor Corporation
    Inventors: Debasish Banerjee, Benjamin Alan Grayson, Minjuan Zhang, Masahiko Ishii
  • Publication number: 20140300857
    Abstract: An optical device including: an optical substrate provided with selective optical filtering element configured to selectively inhibit transmission, through the optical substrate of at least one selected range of wavelengths of incident light in the visible light spectrum at an inhibition rate of at least 5%, the selective optical filtering element being further configured to transmit at least 8% of incident light of the visible spectrum outside the at least one selected range of wavelengths; wherein the at least one selected range of wavelengths has a bandwidth in a range of from 10 nm to 70 nm, preferably 10 nm to 60 nm centered on a wavelength within a range of between 430 nm and 465 nm.
    Type: Application
    Filed: December 6, 2012
    Publication date: October 9, 2014
    Applicants: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQU E), UNIVERSITE PARIS 6 PIERRE ET MARIE CURIE
    Inventors: Denis Cohen-Tannoudji, Coralie Barrau, Thierry Pierre Villette, Jose-Alain Sahel, Serge Picaud, Emilie Arnault, Christophe Plessis, Dominique Conte
  • Patent number: 8854736
    Abstract: An optical body includes a first optical layer having a concave-convex surface, a wavelength selective reflecting layer formed on the concave-convex surface, and a second optical layer formed on the wavelength selective reflecting layer and embedding the concave-convex surface. The wavelength selective reflecting layer selectively directionally reflects light in a particular wavelength band while transmitting light other than the particular wavelength band therethrough. The concave-convex surface is made up of a plurality of triangular pillars arrayed in a one-dimensional pattern, and the triangular pillar has an apex angle ? and a slope angle ?, the apex angle ? and the slope angle ? satisfying a predetermined relationship.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: October 7, 2014
    Assignee: Dexerials Corporation
    Inventors: Hironori Yoshida, Tsutomu Nagahama, Masashi Enomoto
  • Patent number: 8842364
    Abstract: An optical device that has an antireflection function, the optical device including: a base; and a plurality of structural bodies, which are formed by convex portions or concave portions, arranged on a surface of the base with a fine pitch that is equal to or smaller than a wavelength of visible light, wherein the plurality of structural bodies are arranged so as to form tracks of a plurality of rows on the surface of the base and form a quasi-hexagonal lattice pattern, a tetragonal lattice pattern, or a quasi-tetragonal lattice pattern, and wherein a packing ratio of the structural bodies to the surface of the base is equal to or higher than 65%.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: September 23, 2014
    Assignee: Dexerials Corporation
    Inventors: Sohmei Endoh, Kazuya Hayashibe
  • Publication number: 20140273459
    Abstract: The present disclosure provides an interference filter, a lithography system incorporating an interference filter, and a method of fabricating an interference filter. The interference filter includes a transparent substrate having a front surface and a back surface, a plurality of alternating material layers formed over the front surface of the transparent substrate that form a bandpass filter, and an anti-reflective structure formed over the back surface of the transparent substrate. The alternating material layers alternate between a relatively high refractive index material and a relatively low refractive index material.
    Type: Application
    Filed: June 27, 2013
    Publication date: September 18, 2014
    Inventors: Wolf Hung, Chung-Nan Chen, Jaw-Lih Shih, Hong-Hsing Chou, Yeh-Chieh Wang
  • Publication number: 20140268346
    Abstract: A broadband partial reflector includes a first multilayer polymeric optical film having a total number of optical repeating units from a first side to a second side of the first multilayer polymeric optical film and a second multilayer polymeric optical film having a total number of optical repeating units from a first side to a second side of the second multilayer polymeric optical film and an intermediate layer on the second side of the multilayer polymeric optical film separates the first multilayer polymeric optical film from the second multilayer polymeric optical film. The first multilayer polymeric optical film has a first baseline optical repeating unit thickness profile and a first apodized optical repeating unit thickness profile monotonically deviating from the first baseline optical repeating unit thickness profile and defining the second side of the first multilayer polymeric optical film.
    Type: Application
    Filed: October 17, 2012
    Publication date: September 18, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Michael F. Weber, Timothy J. Nevitt, John A. Wheatley
  • Publication number: 20140268342
    Abstract: An optical filter device includes a housing including a light passage hole making light incident on the inner side, an aperture on the outer side of the housing and limiting the light made incident on the incident light passage hole, and an interference filter on the inner side of the housing and including a fixed reflection film and a movable reflection film. In a plan view of the fixed reflection film and the movable reflection film, an opening of the aperture, the light passage hole, and the fixed reflection film and the movable reflection film overlap one another. When the diameter of the fixed reflection film close to the light passage hole is ?m, the bore of the light passage hole is ?p, and the opening diameter of the aperture is ?a, ?a<?m<?p.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Inventor: Tomonori MATSUSHITA