Absorption Filter Patents (Class 359/885)
  • Patent number: 10302934
    Abstract: There is provided with a light amount adjusting device. The light adjusting device has a plurality of optical filter elements. The plurality of optical filter elements have different light transmittances. Reflected light colors from the plurality of optical filter elements are substantially equal.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: May 28, 2019
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Yasuhiro Sato, Michio Yanagi
  • Patent number: 10191711
    Abstract: A multi-display apparatus may include a first display panel and a second display panel at least partially overlapping the first display panel. The first display panel may include a first display region in which a plurality of first pixels are disposed, and a first non-display region adjacent to the first display region. The second display panel may include a second display region in which a plurality of second pixels are disposed. The first non-display region may overlap the second display region, and first transmitting windows may be disposed in the first non-display region over the second pixels.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: January 29, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Beohm-Rock Choi, Jae-Beom Choi
  • Patent number: 10066989
    Abstract: A system for providing variable wavelength intensity attenuation to said focused beams by application of an aperture-like element that comprises at least two regions of “filter” material, or comprises different materials graded into one another, which different materials that have different responses to different wavelengths, wherein said system is applied to reduce differences in wavelength intensity levels when applied in collimated portions of a beam as a Spectral Angle Adjustor (SAA) or to preserve information in a beam while changing said beam effective diameter as a Spectral Aperture Stop (SAS); or to affect a Spectral Field Stop (SFS) that controls source image size when applied at a convergent/divergent beam focal point as a Spectrally Varying Aperture, (SVA) the end result depending on where in a beam it is applied.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: September 4, 2018
    Assignee: J.A. WOOLLAM CO., INC
    Inventors: Martin M. Liphardt, Ping He
  • Patent number: 9952361
    Abstract: A solid-state imaging device comprises a CMOS sensor, a circuit board, a ceramic plate, an IR cut filter, a taking lens, a lens holder, and a support barrel. The CMOS sensor is mounted on the circuit board. The circuit board is fixed to the ceramic plate such that the CMOS sensor is placed inside an opening of the ceramic plate. The sides of the CMOS sensor are surrounded by the ceramic plate. The IR cut filter is fixed to the ceramic plate so as to cover the opening. The CMOS sensor is disposed behind the taking lens. The IR cut filter is disposed between the taking lens and the CMOS sensor. A light-shielding layer is formed over the entire periphery of edge portions of an incident surface of the IR cut filter. Harmful rays such as reflective light is blocked by the light-shielding layer.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: April 24, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Reiji Higuchi, Satoru Murayama
  • Patent number: 9946377
    Abstract: The present invention relates to a touch panel comprising a structure body comprising: a substrate; a conducting pattern that is provided on at least one surface of the substrate; and a light absorption pattern provided on at least one surface of the conducting pattern and provided on at least a portion of regions corresponding to the conducting pattern, and a method for manufacturing the same.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: April 17, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Ji Young Hwang, In-Seok Hwang, Sang Ki Chun, Seung Heon Lee
  • Patent number: 9933651
    Abstract: A liquid crystal display including: a first display panel defining a plurality of pixel areas; a second display panel facing the first display panel; a liquid crystal layer interposed between the first display panel and the second display panel; and a plurality of color filters disposed in the respective pixel areas, wherein four different color filters are respectively disposed in four adjacent pixel areas, and each of the four color filters includes first and second protrusions formed at first and second edges of the corresponding pixel area and first and second chamfered portions at third and fourth edges thereof.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: April 3, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki Soo Park, Wan-Soon Im, Hyung June Kim, Jong Hak Hwang
  • Patent number: 9910218
    Abstract: The present invention provides an optical module and an optical network system. A first chip is arranged on a lower cover plate, an upper cladding, which is close to a first PD, of the first chip is covered by a first upper cover plate; a first dividing groove divides the first chip into two parts, and a WDM and a light blocking material are arranged inside the first dividing groove, so as to block stray light transmitted inside the upper cladding, a sandwich layer, a lower cladding, and a base of the first chip; and a light blocking material is arranged on a side of the first upper cover plate facing the first LD, so as to block stray light transmitted on a surface of the first chip, thereby blocking the stray light that enters the first PD, and significantly reducing crosstalk of the optical module.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: March 6, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Shu Li, Cong Chen, Sulin Yang
  • Patent number: 9868849
    Abstract: The present invention relates to a coloring resin composition exhibiting pleochroism comprising 100 parts by weight of a transparent thermoplastic resin (A); 0.01 to 0.03 parts by weight of a dye for coloring a resin (B) which is one selected from the group consisting of an azo-based dye (b1), an anthraquinone-based dye (b2), and a methine dye (b3); and 0.1 to 0.3 parts by weight of a functional black dye (C) obtained by mixing an anthraquinone-based dye (c1) and a perinone-based dye (c2). A resin molded article manufactured by the coloring resin composition exhibiting pleochroism of the present invention is characterized by exhibiting different colors of light according to thicknesses although the resin molded article is irradiated with light sources in a single wavelength.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: January 16, 2018
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Hyoung Joo Chung, Jae Kyung Kim, Eun Ju Song, Young Bae Lee
  • Patent number: 9709245
    Abstract: An artificial illumination device for generating natural light similar to that from the sun and the sky includes a direct-light source; and a diffused-light generator, wherein the direct-light source includes a first light-emitting device configured to emit a primary light, and a first emitting surface positioned downstream the first light-emitting device, wherein the diffused-light generator is at least partially light-transparent and is positioned downstream of the first light-emitting device and includes a second emitting surface and is configured to cause diffused light at the second emitting surface. Both co-operate to form outer light at an outer emitting surface which includes a first light component which propagates along directions contained within the narrow peak and a second light component which propagates along directions spaced apart from the narrow peak, and wherein the first light component has a CCT which is lower than a CCT of the second light component.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: July 18, 2017
    Assignee: CoeLux S.r.l.
    Inventors: Paolo Di Trapani, Davide Magatti
  • Patent number: 9664826
    Abstract: A color filter substrate includes a transparent substrate and a plurality of color filter patterns. The transparent substrate has an upper surface and a lower surface opposite to each other, and a plurality of containing cavities. The containing cavities extend from the upper surface toward the lower surface and separate from each other. Each containing cavity has a bottom surface. The color filter patterns are disposed on the transparent substrate and located inside the containing cavities, respectively. The color filter patterns contact with the corresponding bottom surfaces, respectively.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: May 30, 2017
    Assignee: E Ink Holdings Inc.
    Inventors: Tai-Yuan Lee, Po-Yuan Lo
  • Patent number: 9628179
    Abstract: A system and method for filtering and enhancing signals from a noise background based on the nonlinear interaction of waves. The system and method amplify low-level signals, hide information in the signals, and then nonlinearly recover the signals. With the present invention, this can be performed for both spatial beams and temporal pulses. The signal self-filters and self-amplifies at the expense of the surrounding noise via the nonlinear medium.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: April 18, 2017
    Assignee: Princeton University
    Inventors: Jason W Fleischer, Dmitry V Dylov
  • Patent number: 9628776
    Abstract: A 3D image capture device according to an aspect of the present invention includes: a light-transmitting section including N different kinds of first filters (where N is an integer equal to or greater than two) which are arranged so that light rays are incident on those filters in parallel with each other and that the transmittances have mutually different wavelength dependences; an image sensor including N second filters, of which the transmittances have mutually different wavelength dependences; and an image capturing driving section driving the light-transmitting section so that image capturing sessions are carried out M times sequentially (where M is an integer equal to or greater than N), and that each of the first filters changes its positions from one of N positions that have been set in advance with respect to the image sensor after each time the image capturing session is carried out.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: April 18, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yasunori Ishii, Masao Hiramoto
  • Patent number: 9625627
    Abstract: The belt ply feeder and a feeding method include: when a belt ply is conveyed to the front end of a conveying forming board, a force is exerted by a perpendicular adjustment device to drive a conveying forming board bracket to swing upward and rotate around a pivot shaft of a rack to positions at which the upper surface of the conveying forming board is tangential to the periphery of a belt ply drum. According to this arrangement, the belt ply is tangential to the belt ply drum all the time and a belt ply is in firm contact with a belt ply drum regardless of the size of the belt ply drum when wrapping the belt ply around the belt ply drum. Accordingly, the quality of tire shaping can be improved.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: April 18, 2017
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Weidong Shen, Chenying Yang, Yueguang Zhang, Xu Liu
  • Patent number: 9515119
    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: Grant
    Filed: February 5, 2016
    Date of Patent: December 6, 2016
    Assignee: Viavi Solutions Inc.
    Inventors: Karen Denise Hendrix, Charles A. Hulse, Richard A. Bradley, Jeffrey James Kuna
  • Patent number: 9513413
    Abstract: A color filter substrate is provided, comprising: a substrate comprising a plurality of pixel regions arranged in matrix; a color resin layer formed in each of the pixel regions on the substrate; and a transparent pillar formed on the substrate and located in the color resin layer. In addition, a manufacturing method for the color filter substrate is also provided.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: December 6, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Wang, Yonglian Qi
  • Patent number: 9390790
    Abstract: The present disclosure is directed toward carbon based diodes, carbon based resistive change memory elements, resistive change memory having resistive change memory elements and carbon based diodes, methods of making carbon based diodes, methods of making resistive change memory elements having carbon based diodes, and methods of making resistive change memory having resistive change memory elements having carbons based diodes. The carbon based diodes can be any suitable type of diode that can be formed using carbon allotropes, such as semiconducting single wall carbon nanotubes (s-SWCNT), semiconducting Buckminsterfullerenes (such as C60 Buckyballs), or semiconducting graphitic layers (layered graphene). The carbon based diodes can be pn junction diodes, Schottky diodes, other any other type of diode formed using a carbon allotrope. The carbon based diodes can be placed at any level of integration in a three dimensional (3D) electronic device such as integrated with components or wiring layers.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: July 12, 2016
    Assignee: Nantero Inc.
    Inventors: Claude L. Bertin, C. Rinn Cleavelin, Thomas Rueckes, X. M. Henry Huang, H. Montgomery Manning
  • Patent number: 9329311
    Abstract: The present disclosure provides a light control film that is capable of transmitting light, or allowing a viewer to observe information, only within a viewing region centered around the normal (perpendicular line) to a surface. The light control film generally blocks information or light outside of this viewing region, and provides security in all directions including right-and-left and up-and-down of the film. The light control film includes a plurality of light-transmissive cavities that are surrounded by a light absorbing material, such that each of the plurality of cavities is optically isolated from adjacent cavities. Each of the light-transmissive cavities effectively block light which enters the cavity outside of a viewing (that is, cutoff) angle.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: May 3, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kurt J. Halverson, Raymond J. Kenney, Brian W. Lueck, Kenneth A.P. Meyer, Scott M. Tapio, Michael E. Lauters, Olester Benson, Jr., Gary E. Gaides
  • Patent number: 9242278
    Abstract: Disclosed herein is a high-efficiency acoustic wave generator using a pulsed thermal radiation beam. The generator is configured such that when a pulse beam formed by a light interrupter is directly radiated onto a porous material having a woven net or steel scrubber shape, thin wires of the porous material repeatedly rapidly thermally-expand and contract, whereby air in the space between the wires is momentarily heated and cooled, and the expansion and contraction of air is directly transmitted to an air column formed just adjacent to the porous material. By virtue of the above structure, the efficiency of the generator is markedly improved compared to the conventional technique, and the productivity is also greatly enhanced.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: January 26, 2016
    Assignee: Jeju National University Industry-Academic Cooperation Foundation
    Inventors: Wongee Chun, Seungjin Oh, Namjin Kim, Youncheol Park, Yeongmin Kim, Kuan Chen
  • Patent number: 9195152
    Abstract: A transmissive spectral purity filter is configured to transmit extreme ultraviolet radiation. The spectral purity filter includes a filter part having a plurality of apertures configured to transmit extreme ultraviolet radiation and to suppress transmission of a second type of radiation. Each aperture has been manufactured by an anisotropic etching process.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: November 24, 2015
    Assignee: ASML NETHERLANDS B.V.
    Inventors: Wouter Anthon Soer, Andrei Mikhailovich Yakunin, Martin Jacobus Johan Jak, Denny Mathew, Hendrik Jan Kettelarij, Fredericus Christiaan Van Den Heuvel, Petrus Elizabeth Maria Kuijpers
  • Patent number: 9176315
    Abstract: According to the method for controlling optical transmissions according to the present invention, in a state where particles formed of a light-blocking material, a first solvent with electro-wetting properties in which the particles are dispersed, and a second solvent which is not mixed with the first solvent are present in a space covered by an optical incident surface, the particles are mixed with the first solvent but not mixed with the second solvent, and an electric field applied to the first solvent is controlled so as to control the blocking area of the first solvent with respect to the optical incident surface and control optical transmittance.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: November 3, 2015
    Assignee: NANOBRICK CO., LTD.
    Inventor: Jae Hyun Joo
  • Patent number: 9087991
    Abstract: A photovoltaic element (110) is proposed for conversion of electromagnetic radiation to electrical energy, more particularly a dye solar cell (112). The photovoltaic element (110) has at least one first electrode (116), at least one n-semiconductive metal oxide (120), at least one electromagnetic radiation-absorbing dye (122), at least one solid organic p-semiconductor (126) and at least one second electrode (132). The p-semiconductor (126) comprises silver in oxidized form.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: July 21, 2015
    Assignee: BASF SE
    Inventors: Alfred Kuhn, Ingmar Bruder, Rüdiger Sens, Neil Gregory Pschirer, Peter Erk
  • Patent number: 9063284
    Abstract: Light control films, and a method for manufacturing tools used to microreplicate light control films.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: June 23, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Vivian W. Jones, Silva K. Theiss, Mark E. Gardiner, Michael E. Lauters, Gary E. Gaides
  • Patent number: 9065180
    Abstract: The invention relates to a surface suitable for filtering a plurality of frequency bands, said surface including a set of separate identical basic conductive units (31) that are reproduced in a periodic arrangement on a dielectric substrate (10). The basic unit includes: a tripole consisting of three identical segments (12) that extend radially from a center (14); and two arms (32) that extend symmetrically from an intermediate point of each segment, said intermediate point being located at a common distance (Db) from the center (14) for each of the segments (12). The general directions of both arms form an angle of approximately 120° and define an arrowhead pointed toward the outside, wherein the arms (32) corresponding to two separate segments (12) do not intersect.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: June 23, 2015
    Assignees: INSTITUT POLYTECHNIQUE DE GRENOBLE, CENTRE TECHNIQUE DE L'INDUSTRIE DES PAPIERS, CARTONS ET CELLULOSES
    Inventors: Fabien De Barros, Guy Eymin-Petot-Tourtollet, Pierre Lemaitre-Auger, Tân-Phu Vuong
  • Publication number: 20150146316
    Abstract: An optical filter for use in high temperature and rapid changing temperature environments, and method of making the same is provided. The optical filter includes a substrate and a filter layer disposed on the substrate. The filter layer has a porous columnar micro-structure configured to decouple the thermal expansion stress between the substrate and the filter layer when the optical filter is subjected to high temperature. The filter layer may be formed of a material conducive to physical vapor deposition, such as metallic oxide. The filter layer is deposited onto the substrate at an angle.
    Type: Application
    Filed: September 3, 2014
    Publication date: May 28, 2015
    Inventor: Thomas C. Parker
  • Patent number: 9042719
    Abstract: Provided herein are devices and system to magnetically, rotably secure a lens filter to a camera. Generally the devices and systems comprise a magnet assembly and a lens filter assembly threadably engageable. Also provided are magnetic lens filter systems comprising the engaged magnet and lens filter assemblies and an attachment assembly securable around a camera lens and magnetically attachable to the magnet comprising the magnetic lens filter, magnetic adapter assembly or magnetic adapter. Further provided are camera systems comprising the magnetic lens filter systems rotatably affixed thereto.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: May 26, 2015
    Inventor: Ye Xu
  • Publication number: 20150138661
    Abstract: Implementations of the present invention relate to apparatuses, systems, and methods for blocking, attenuating, or filtering neuroactive wavelengths of the visible light spectrum and reducing or preventing the symptoms affiliated with exposure to those wavelengths. Nanoparticles of a predetermined composition, size, and structure are dispersed in a host medium to create an optical notch filter, thereby attenuating only a narrow range of the visible spectrum.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 21, 2015
    Inventors: Steven M. Blair, Pradeep Kasinadhuni, Steve McDaniel, Bradley Jay Katz
  • Publication number: 20150116721
    Abstract: A spectral encoder includes a thin layer of lossy dielectric material whose thickness varies transversely from 0 to a thickness of about ?/4n (e.g., <100 nm), where ? is the wavelength of incident radiation and n is the dielectric material's refractive index. The dielectric layer reflects (and/or transmits) light at a wavelength that depends on the layer's thickness. Because the dielectric layer's thickness varies, different parts of the dielectric layer may reflect (transmit) light at different wavelengths. For instance, shining white light on a dielectric layer with a linearly varying thickness may produce a rainbow-like reflected (and/or transmitted) beam. Thus, the spectral encoder maps different wavelengths to different points in space. This mapping can be characterized by a transfer matrix which can be used to determine the spectrum of radiation incident on the spectral encoder from the spatial intensity distribution of the radiation reflected (and/or transmitted) by the spectral encoder.
    Type: Application
    Filed: June 3, 2013
    Publication date: April 30, 2015
    Inventors: Mikhail A. Kats, Romain Blanchard, Patrice Genevet, Federico Capasso
  • Publication number: 20150109565
    Abstract: A display device includes a first color pixel, a second color pixel neighboring the first color pixel in a first direction, a third color pixel neighboring the second color pixel in the first direction, a fourth color pixel neighboring the first color pixel in a second direction, a fifth color pixel neighboring the second color pixel in the second direction, and a sixth color pixel neighboring the third color pixel in the second direction, wherein each of the first color pixel, the second color pixel, the fourth color pixel and the fifth color pixel has a first long-side length, the third color pixel has a second long-side length which is greater than the first long-side length, and the sixth color pixel has a third long-side length which is less than the first long-side length.
    Type: Application
    Filed: October 17, 2014
    Publication date: April 23, 2015
    Applicant: Japan Display Inc.
    Inventors: Arihiro TAKEDA, Keiji Tago, Kayoko Miyazaki, Ayumi Mori
  • Patent number: 9000292
    Abstract: A device for adaptable wavelength conversion and a device for energy conversion are described. The device for adaptable wavelength conversion comprises at least one layer comprising a wavelength converting material and arranged to receive and re-emit a light beam. The device is further arranged to manipulate the at least one layer to operate in a closed state, in which a surface of the at least one layer is substantially covered with the wavelength converting material and to operate in an open state, in which the surface of the at least one layer is substantially uncovered with the wavelength converting material. The device for adaptable wavelength conversion can be applied in combination with a solar cell or photovoltaic cell thereby enabling the solar cell to receive radiation having a suitable spectrum under varying lighting conditions.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: April 7, 2015
    Assignee: Koninklijke Philips N.V.
    Inventors: Rogier A. H. Niessen, Willem F. Pasveer, Johan H. Klootwijk
  • Patent number: 8995055
    Abstract: An angular and spectral selective absorber in ultrathin metamaterials is an absorber having an absorption wavelength, ?. Embodiments of the invention include at least one primary layer having a thickness, d, and a relative permittivity of epsilon-near-zero, ?. At least one reflective secondary layer is associated with the primary layer. The association is by bonding.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: March 31, 2015
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventor: Simin Feng
  • Publication number: 20150085282
    Abstract: A light measuring arrangement maintains the initial filtering function of an optical filter having a dye dispersed therein. The light measuring arrangement includes a measuring unit configured to measure an intensity of light emitted from a measurement target at a predetermined wavelength. The light measuring arrangement also includes the optical filter unit having the dye. The light measuring arrangement also includes a dye diffusion restricting unit configured to restrict diffusion of the dye from the optical filter unit. The optical filter unit constitutes part of an optical path for the light traveling from the measurement target to the light measuring unit.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 26, 2015
    Applicants: USHIO DENKI KABUSHIKI KAISHA, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Hiroaki YOSHIOKA, Yuji OKI, Kinichi MORITA
  • Publication number: 20150077841
    Abstract: Provided is an optical filter integrally provided with a light blocking film capable of suppressing stray light. An optical filter may be used for an imaging apparatus having a built-in image sensing device on which light from a subject or a light source is incident. The optical filter includes: an optical filter main body arranged between the subject or the light source and the image sensing device and having a transmission property for the incident light; and a frame-shaped light blocking film integrally formed on at least one surface of the optical filter main body. The light blocking film satisfies the following condition (1) and/or condition (2). (1) A concavity/convexity is formed on at least a part of an inner peripheral surface of the light blocking film. (2) A thin part is formed on at least a part of an inner edge of the light blocking film.
    Type: Application
    Filed: November 20, 2014
    Publication date: March 19, 2015
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Atsushi MATSUO, Satoshi UMEDA, Tsutomu KINASHI
  • Publication number: 20150068599
    Abstract: A metallic-dielectric photonic crystal is formed with a periodic structure defining a plurality of resonant cavities to selectively absorb incident radiation. A metal layer is deposited on the inner surfaces of the resonant cavities and a dielectric material fills inside the resonant cavities. This photonic crystal can be used to selectively absorb broadband solar radiation and then reemit absorbed radiation in a wavelength band that matches the absorption band of a photovoltaic cell. The photonic crystal can be fabricated by patterning a sacrificial layer with a plurality of holes, into which is deposited a supporting material. Removing the rest of the sacrificial layer creates a supporting structure, on which a layer of metal is deposited to define resonant cavities. A dielectric material then fills the cavities to form the photonic crystal.
    Type: Application
    Filed: September 5, 2014
    Publication date: March 12, 2015
    Applicant: Massachusetts Institute of Technology
    Inventors: Jeffrey Brian Chou, Sang-Gook Kim
  • Publication number: 20150070795
    Abstract: A transparent article includes a continuous polyester matrix having at least one incompatible filler dispersed therein. The incompatible filler provides domains in the polyester matrix, each domain having a particular dimension, thus providing a range of dimensions for the domains in the article. To create haze, the dimensions are within the range of from about 380 nm to about 720 nm. Once the range of dimensions is determined, a light absorbent composition can be found which absorbs light at a range of wavelengths that at least substantially covers the range of dimensions of the domains. In doing so, it has been found that the haze of the article can be substantially masked. Method for producing the article and for masking the haze are also provided.
    Type: Application
    Filed: June 23, 2014
    Publication date: March 12, 2015
    Applicant: M & G USA CORPORATION
    Inventors: Edwin Andrew Sisson, Arianna Giovannini, Simone Ferrero
  • Patent number: 8976357
    Abstract: An optical sensor includes a light receiving element (for example a photodiode) and an angle limiting filter that limits the incidence angle of incidence light with respect to the light receiving area of the light receiving element. When a wavelength of the incidence light is denoted by ?, a height of the angle limiting filter is denoted by R, and a width of an opening of the angle limiting filter is denoted by d, “d2/?R?2” is satisfied.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: March 10, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Akira Uematsu, Yoshiyuki Terashima, Yoichi Sato, Atsushi Matsuo
  • Patent number: 8968875
    Abstract: The embodiments described herein generally relate to compositions and articles including dye compounds having desirable optical properties, and related methods. In some cases, the compositions and articles may possess advantageous optical properties, including various degrees of absorbance, emission, and/or transmission at particular wavelengths or ranges of wavelength. Embodiments described herein may be useful as optical filters in protective eyewear applications.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: March 3, 2015
    Inventors: Larry Takiff, Kevin M. Bardon, Charles Lysogorski, Oliver Pentenrieder
  • Patent number: 8958165
    Abstract: Disclosed is a cyanine compound represented by general formula (I) below. Also disclosed are an optical filter using the compound and an optical recording material.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: February 17, 2015
    Assignee: Adeka Corporation
    Inventors: Toru Yano, Mitsuhiro Okada, Koichi Shigeno
  • Publication number: 20150036234
    Abstract: Disclosed are compositions and methods for making and using thin film opto-electronic conversion devices using nanoparticles.
    Type: Application
    Filed: August 1, 2014
    Publication date: February 5, 2015
    Inventors: Adela Ben-Yakar, Richard K. Harrison
  • Patent number: 8947800
    Abstract: A monolithic optical absorber and methods of making same. The monolithic optical absorber uses an array of mutually aligned carbon nanotubes that are grown using a PECVD growth process and a structure that includes a conductive substrate, a refractory template layer and a nucleation layer. Monolithic optical absorbers made according to the described structure and method exhibit high absorptivity, high site densities (greater than 109 nanotubes/cm2), very low reflectivity (below 1%), and high thermal stability in air (up to at least 400° C.). The PECVD process allows the application of such absorbers in a wide variety of end uses.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: February 3, 2015
    Assignee: California Institute of Technology
    Inventors: Anupama B. Kaul, James B. Coles
  • Publication number: 20150029428
    Abstract: Embodiments of the present invention provide a color filter substrate, a liquid crystal display panel including the color filter substrate, and a manufacturing process of the color filter substrate. The color filter substrate provided in the present invention includes: a substrate, including a display area and a non-display area on the periphery of the display area; and a black matrix, disposed on the substrate, wherein the black matrix in the display area on the substrate defines sub-pixels area, and the black matrix corresponding to the non-display area on the substrate includes a non-flat surface.
    Type: Application
    Filed: May 28, 2014
    Publication date: January 29, 2015
    Applicants: Wuhan Tianma Micro-Electronics Co., Ltd., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Nahong WANG, Chao Dai
  • Patent number: 8934184
    Abstract: A color filter includes a substrate and a plurality of pixel units. The substrate defines a plurality of pixel areas. Each pixel area has a plurality of first sub-pixel areas, and each first sub-pixel area has a first area and a second area. The pixel units are formed on the substrate corresponding to the pixel areas. Each pixel unit is disposed in a corresponding pixel area and includes a plurality of color subtractive filter films and a plurality of color additive filter films. The color subtractive filter films are disposed in the first areas of the first sub-pixel areas of the corresponding pixel area, and the color additive filter films are disposed in the second areas of the first sub-pixel areas of the corresponding pixel area. A color display device with the color filter is also disclosed.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: January 13, 2015
    Assignee: E Ink Holdings Inc.
    Inventors: Yi-Ching Wang, Lee-Tyng Chen
  • Patent number: 8929007
    Abstract: A color filter and a manufacturing method thereof are provided, in which a stacked structure composed of several color film layers having different colors is formed in a non-transmitting partitioning region of the color filter in such a way that the stacked structure can prevent light from passing through the color filter via the partitioning region.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: January 6, 2015
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Display Technology Co., Ltd.
    Inventors: Hongjiang Wu, Chongxi Wei, Yiming Chen, Seungmoo Rim, Xibin Shao
  • Publication number: 20140366439
    Abstract: Nanoparticles (NPs) may be used to transform the energy of harmful or less useful wavelengths into beneficial and more useful wavelengths of light for a multitude of purposes including, for example, promotion of photosynthesis, enhancing germination timing, enhancing bloom timing. In one embodiment, a greenhouse structure may include nanoparticles embedded in a glass or plastic panel, or may include nanoparticles disposed on a surface of such a panel, to alter the wavelength of available light to a desired wavelength in order to alter an event associated with plant life contained within the greenhouse structure. In another embodiment, nanoparticles may be applied directly to a part of a plant structure (e.g., leaves, stems, etc.) to alter a characteristic of light before receipt of the light by the plant.
    Type: Application
    Filed: June 13, 2014
    Publication date: December 18, 2014
    Inventors: Martin Ben-Dayan, William D. Bickmore
  • Patent number: 8902522
    Abstract: Disclosed is a colored photosensitive resin composition for a color filter of a solid state imaging device using an ultra-short wavelength exposing device of 300 nm or less, a color filter and a solid state imaging device including the same. The colored photosensitive resin composition can fabricate a color filter having a micro-patterned colored pattern. The color filter can be advantageously applied to a solid state imaging device.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: December 2, 2014
    Assignee: Dongwoo Fine-Chem Co., Ltd.
    Inventors: Sang Haeng Lee, Seung No Lee, Jeung Hoon On, Ji Min Chun
  • Publication number: 20140347747
    Abstract: A device comprises at least one optics member (O) comprising at least one transparent portion (t) and at least one blocking portion (b). The at least one transparent portion (t) is made of one or more materials substantially transparent for light of at least a specific spectral range, referred to as transparent materials, and the at least one blocking portion (b) is made of one or more materials substantially non-transparent for light of the specific spectral range, referred to as non-transparent materials. The transparent portion (t) comprises at least one passive optical component (L). The at least one passive optical component (L) comprises a transparent element (6) having two opposing approximately flat surfaces substantially perpendicular to a vertical direction in a distance approximately equal to a thickness of the at least one blocking portion (b) measured along the vertical direction, and, attached to the transparent element (6), at least one optical structure (5).
    Type: Application
    Filed: May 28, 2014
    Publication date: November 27, 2014
    Applicant: Heptagon Micro Optics Pte. Ltd.
    Inventors: Hartmut Rudmann, Susanne Westenhöfer, Bojan Tesanovic
  • 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
  • Patent number: 8867132
    Abstract: Thermochromic filters use combinations of absorptive, reflective, thermoabsorptive, and thermoreflective elements covering different portions of the solar spectrum, to achieve different levels of energy savings, throw, shading, visible light transmission, and comfort. Embodiments include stopband filters in the near-infrared spectrum.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: October 21, 2014
    Assignee: Ravenbrick LLC
    Inventors: Wil McCarthy, Richard M. Powers
  • Patent number: 8858000
    Abstract: A projector includes a light source that emits excitation light, a fluorescent body that converts the excitation light into fluorescence, a liquid crystal optical modulation device that modulates light output from the fluorescent body, an optical sensor that detects at least one of the excitation light passing through the fluorescent body and the fluorescence converted by the fluorescent body, and a control device that controls at least one of the light source and the liquid crystal optical modulation device based on a detection result of the optical sensor.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: October 14, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Masahide Tsuda, Osamu Saito, Kenichi Shioiri, Shigehiro Yanase
  • Publication number: 20140300982
    Abstract: An electro-optical device that includes an opposing substrate main section which has a groove on a front surface side thereof, a first insulation film which is so disposed as to cover the front surface and part of which keeps a distance from slopes of the groove, a light blocking film disposed in the circumference of the pixel region, a second insulation film disposed so as to cover the first insulation film, a hole penetrating the first insulation film and the second insulation film, and a third insulation film which is disposed so as to cover the second insulation film and to close the hole.
    Type: Application
    Filed: April 7, 2014
    Publication date: October 9, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Satoshi Ito, Jun Araya
  • Patent number: RE45442
    Abstract: A multiple wavelength light emitting device is provided wherewith the resonance strength and directivity between colors can be easily adjusted for balance. This light emitting device comprises a light emission means 4 for emitting light containing wavelength components to be output, and a semi-reflecting layer group 2 wherein semi-reflecting layers 2R, 2G, and 2B that transmit some light having specific wavelengths emitted from the light emission means and reflect the remainder are stacked up in order in the direction of light advance in association with wavelengths of light to be output. Light emission regions AR, AG, and AB are determined in association with the wavelengths of light to be output.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: March 31, 2015
    Assignees: Seiko Epson Corporation, Cambridge Display Technology Limited
    Inventors: Tatsuya Shimoda, Tomoko Koyama, Takeo Kaneko, Jeremy Henley Burroughes