Diffusing Of Incident Light Patents (Class 359/599)
  • Patent number: 8507073
    Abstract: An exterior part (200) includes (a) a structure color generation portion (210) having a minute shape (structure color generation region (211)) formed therein, light in a visible light range being produced from the minute shape by a physical phenomenon such as interference or diffraction with the incidence of light, and (b) a resin portion (220) that is made of resin having a light transmitting property and serves as the outer surface of a product, (c) the structure color generation portion (210) and the resin portion (220) are formed by molding, and (d) the structure color generation portion (210) is made of resin different from the resin of the resin portion (220), and covered with the resin portion (220).
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: August 13, 2013
    Assignee: Panasonic Corporation
    Inventors: Yukio Nishikawa, Masayuki Takahashi
  • Publication number: 20130201662
    Abstract: An anti-abrasion optical diffusion film (2), an LCD device and a light source using the anti-abrasion optical diffusion film (2) are disclosed, in order to solve the problem of the prior art that the diffusion particles are abraded or detached in large area, when an optical diffusion thin film receives external force. The anti-abrasion optical diffusion film (2) includes a substrate (21) and a diffusion coating (22); the diffusion coating (22) includes diffusion adhesive layer (24) and diffusion particles (23). The variation coefficient of the diameter of the particles is 10-100%. The invention improves the anti-abrasion ability of the optical diffusion thin film.
    Type: Application
    Filed: January 14, 2011
    Publication date: August 8, 2013
    Applicant: NINGBO EXCITON NEW MATERIAL TECHNOLOGY CO, LTD
    Inventors: Yan Zhang, Yadong Jin
  • Patent number: 8503081
    Abstract: A hard-coated antiglare film that has superior antiglare properties, allow high definition to be provided even in the case of a low haze value, can prevent white blur in an oblique direction from occurring and, and can improve the depth of black in black display, as well as a polarizing plate, and the like. The hard-coated antiglare film includes a transparent plastic film substrate and a hard-coating antiglare layer containing fine particles, which is on at least one surface of the transparent plastic film substrate. The hard-coated antiglare film has a total haze value Ht in the range of 10% to 35%. The total haze value Ht and an internal haze value Hin satisfy a relationship of 0.5?Hin/Ht?0.9. The surface of the hard-coating antiglare layer has an uneven shape and an arithmetic average surface roughness Ra in the range of 0.1 to 0.3 ?m.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: August 6, 2013
    Assignee: Nitto Denko Corporation
    Inventors: Naoki Tsuno, Daisuke Hamamoto, Hiroki Kuramoto
  • Patent number: 8491160
    Abstract: A transparent sheet usable in the state where one of surfaces thereof is adjacent to a light emitting body, wherein the other surface of the sheet is divided into a plurality of tiny areas ? having such a size that a maximum circle among circles inscribed thereto has a diameter of 0.5 ?m or greater and 3 ?m or less with no gap; the tiny areas ? include a plurality of tiny areas ?1 randomly selected from the plurality of tiny areas ?, and the remaining plurality of tiny areas ?2; the tiny areas ?1 each include an area ?1a along a border with the corresponding tiny area ?2, and the remaining area ?1b; the tiny areas ?2 each include an area ?2a along a border with the corresponding tiny area ?1, and the remaining area ?2b; the height of the tiny areas ?1b is d/2; the height of the tiny areas ?1a is between zero to d/2; the depth of the tiny areas ?2a is d/2; the depth of the tiny areas ?2b is between zero to d/2; and d is in the range of 0.2 ?m or greater and 3.0 ?m or less.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: July 23, 2013
    Assignee: Panasonic Corporation
    Inventors: Seiji Nishiwaki, Masa-aki Suzuki, Shin-ichi Wakabayashi, Jyunpei Matsuzaki, Tatsuya Nakamura
  • Patent number: 8493660
    Abstract: An optical layered body including a light-transmitting substrate and an antiglare layer provided on the light-transmitting substrate. The antiglare layer has a surface roughness on the outermost surface. In the optical layered body, a mean spacing of tops of local peak of profile S is 0.045 mm or more and 0.10 mm or less determined by the procedure disclosed in the specification. The optical layered body can attain properties such as an antiglare property, scintillation prevention and black color reproducibility such as gloss blackness simultaneously.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: July 23, 2013
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Gen Furui, Yukimitsu Iwata, Takashi Kodama, Yoshihiro Nishimura, Koichi Mikami
  • Patent number: 8493496
    Abstract: Apparatus for mapping an object includes an illumination assembly (30, 50), which includes a single transparency (36) containing a fixed pattern (60, 70, 80) of spots. A light source (34, 52) transilluminates the single transparency with optical radiation so as to project the pattern onto the object (28). An image capture assembly (32) captures an image of the pattern that is projected onto the object using the single transparency. A processor (24) processes the image captured by the image capture assembly so as to reconstruct a three-dimensional (3D) map of the object.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: July 23, 2013
    Assignee: Primesense Ltd.
    Inventors: Barak Freedman, Alexander Shpunt, Meir Machline, Yoel Arieli
  • Publication number: 20130182330
    Abstract: A head-up display device includes an image module, a substrate, and an optical film. The image module has an emitting source, wherein the emitting source transmits at least one image. The substrate is disposed corresponding to the image module. The optical film is disposed on the substrate and includes at least one transmission layer, wherein each transmission layer has a plurality of transmitting column structures obliquely arranged side by side, and a longitudinal direction of the transmitting column structure has a tilt angle with respect to a normal of the substrate. The at least one image is transmitted to the optical film, and the obliquely disposed transmitting column structures cause the at least one image to scatter on the optical film.
    Type: Application
    Filed: December 26, 2012
    Publication date: July 18, 2013
    Applicant: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventor: NATIONAL APPLIED RESEARCH LABORATORIES
  • Patent number: 8485673
    Abstract: A method for producing an optical layered body which can attain properties such as an antiglare property, scintillation prevention and black color reproducibility such as gloss blackness simultaneously, and a production apparatus of the optical body are provided. The method includes forming an antiglare layer having a surface roughness on the light-transmitting substrate, wherein with respect to the surface roughness, when denoting a mean spacing of profile irregularities of the surface of the optical layered body by Sm, a mean inclination angle of profile irregularities by ?a, and mean roughness of the surface roughness by Rz, Sm is 50 ?m or more and less than 100 ?m, ?a is 0.1° or more and 1.0° or less, and Rz is more than 0.2 ?m and 1.0 ?m or less.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: July 16, 2013
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Gen Furui, Yukimitsu Iwata, Takashi Kodama, Yoshihiro Nishimura, Koichi Mikami
  • Patent number: 8488079
    Abstract: There is provided an optical sheet used as a display device surface as a functional layer on at least one side of a transparent base material. A diffusion factor on the outer surface and/or interior of the functional layer, wherein the relationship represented by the following formula (I) is satisfied. 2.1<Q/U<21.4 (I), where Q (regular transmission intensity) is diffuse transmission intensity at 0 degrees and U (virtual regular transmission intensity is transmission intensity, which is a straight line connecting the transmission intensities at diffusion regular transmission ±2 degrees and diffusion regular transmission ±1 degree, extrapolated from the diffuse regular transmission angle.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: July 16, 2013
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Takashi Kodama, Gen Furui, Makoto Honda
  • Publication number: 20130169953
    Abstract: The various embodiments disclosed herein utilize multiple lasers that have different wavelengths and a single detection path. The lasers are mounted orthogonal to one another so that one laser will provide a forward angle light scatter (FALS) signal in the detection path, and one laser will provide a side scatter signal in the detection path (i.e., the single detection optics are approximately in-line with the FALS laser and approximately orthogonal to the side scatter laser). The single detector path spectrally separates the forward and side scatter signals prior to applying them to their respective detectors for measurement.
    Type: Application
    Filed: September 20, 2012
    Publication date: July 4, 2013
    Applicants: Sony Corporation of America, Sony Corporation
    Inventors: Michael D. Zordan, Gary P. Durack, Shinji Yamada, Bharath K. Narahari, Elizabeth C. Eaton, Jeffrey D. Wallace, Larry W. Arnold, Kevin A. Keilbach
  • Publication number: 20130170045
    Abstract: An optical film includes a base plate. The base plate includes a first surface and a second surface opposite to first surface. The first surface includes a plurality of bar-type protrusions arranged parallel to each other. Each of the plurality of bar-type protrusions includes an arcuate surface and a planar surface connected to the arcuate surface. The planar surface intersects with the first surface. The second surface includes a plurality of posts. The present disclosure further provides a device for manufacturing the optical film and a method for manufacturing the optical film.
    Type: Application
    Filed: November 19, 2012
    Publication date: July 4, 2013
    Inventor: CHIA-LING HSU
  • Publication number: 20130163059
    Abstract: Certain embodiments of the disclosed technology may include light reflector systems, methods, and apparatus. According to an example embodiment, a light reflector is provided. The light reflector includes a rear reflector that includes a reflective surface. The light reflector includes a lenticular optical film having a smooth surface and a structured surface. The smooth surface of the lenticular optical film is attached or disposed adjacent to the reflective surface. The lenticular optical film is configured for condensing and diffusing light.
    Type: Application
    Filed: February 19, 2013
    Publication date: June 27, 2013
    Applicant: Southpac Trust International, Inc., Trustee of the LDH Trust
    Inventor: Leslie David Howe
  • Publication number: 20130153017
    Abstract: A package structure and a solar cell with the same are provided. The package structure includes a transparent package bulk and at least one structure capable of changing a direction of light. The structure is disposed within the transparent package bulk and at a distance from a surface of the transparent package bulk. When applied to a solar cell, the package structure can reduce gridline shading.
    Type: Application
    Filed: May 8, 2012
    Publication date: June 20, 2013
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Tsung-Dar Cheng, Jen-You Chu, Yi-Ping Chen, Ping-Chen Chen
  • Publication number: 20130154517
    Abstract: A layered dimmer formed of different layers. The front layer may be a scattering layer, and the back layer may be a reflective layer. The light beam is scattered prior to reflecting, to avoid reflection back to form hotspots.
    Type: Application
    Filed: February 18, 2013
    Publication date: June 20, 2013
    Applicant: PRODUCTION RESOURCE GROUP L.L.C
    Inventor: James Bornhorst
  • Publication number: 20130155517
    Abstract: An optical film including a base film, a light spreading pattern on a first surface of the base film, a surface of the light spreading pattern facing away from the base film being an undulating surface, and a light collecting pattern on a second surface of the base film.
    Type: Application
    Filed: December 13, 2012
    Publication date: June 20, 2013
    Inventors: Kyoung Gon PARK, Ki Yong KIM, Su Kyong LEE, Mi Jeong CHOI
  • Publication number: 20130155516
    Abstract: A diffusive device has an array of discrete facets which may be of a size and pattern similar to a fractal. The facet dimensions can be greater than half the wavelength of incident light such that the facets substantially diffract light. A polarizing wire-grid layer comprised of an array of elongated parallel conductive wires with a period less than half the wavelength of incident light may be disposed between, beneath, or above the facets. The wire-grid polarizes the light by substantially reflecting light having an s-polarization orientation and substantially transmitting a portion of light having a p-polarization orientation.
    Type: Application
    Filed: June 13, 2012
    Publication date: June 20, 2013
    Inventors: Michael Lines, Eric W. Gardner, Mark Davis
  • Publication number: 20130148362
    Abstract: The clarifying filter is a visual enhancement device in which Liquids, Plasmas, Crystals, or other transparent, translucent, or other non-opaque materials are sandwiched between supporting layers to provide the diffusion provided by such materials to enhance the light provided by a light source.
    Type: Application
    Filed: November 21, 2012
    Publication date: June 13, 2013
    Inventor: David Kostuch
  • Patent number: 8462317
    Abstract: An illumination optical system for illuminating an irradiated plane M with illumination light provided from a light source includes a spatial light modulator, which is arranged in an optical path of the illumination optical system and forms a desired light intensity distribution at a pupil position of the illumination optical system or a position optically conjugated with the pupil position, and a diffuser, which is arranged at an incidence side of the spatial light modulator through which the illumination light enters.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: June 11, 2013
    Assignee: Nikon Corporation
    Inventor: Hirohisa Tanaka
  • Publication number: 20130141791
    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: Application
    Filed: December 2, 2011
    Publication date: June 6, 2013
    Applicant: RAYTHEON COMPANY
    Inventors: John R. Moore, Randall W. Zywicki
  • Publication number: 20130141792
    Abstract: [Problem to be Solved] Provided are a molding die by which a molded article with a reduced gloss can be molded; and a manufacturing method therefor, and provided are a method for matching the gloss levels of molded articles, by which the glosses of the surfaces of the molded articles molded with materials such as different synthetic resins can be matched; a molding die; and a manufacturing method therefor.
    Type: Application
    Filed: February 21, 2012
    Publication date: June 6, 2013
    Applicant: TANAZAWA HAKKOSHA CO., LTD.
    Inventors: Kenichi Ueda, Mitsushi Sogabe
  • Publication number: 20130141907
    Abstract: There is provided a light diffusing flame-resistant composite member which has both flame resistance and flexibility and has excellent light diffusibility. The light diffusing flame-resistant composite member of the present invention includes a glass fiber sheet and a condensation-reactive silicone resin, wherein at least one surface of the glass fiber sheet is coated with the condensation-reactive silicone resin, or the glass fiber sheet is impregnated with the condensation-reactive silicone resin, and wherein the composite member has a total light transmittance of 60% or more and a haze value of 80% or more. The condensation-reactive silicone resin may be an inorganic oxide particle-containing condensation-reactive silicone resin comprising a crosslinking structure in which inorganic oxide particles dispersed in a polysiloxane resin having a condensation-reactive group is crosslinked with the polysiloxane resin by chemical bonds.
    Type: Application
    Filed: July 27, 2012
    Publication date: June 6, 2013
    Applicant: NITTO DENKO CORPORATION
    Inventors: Kohei Doi, Kunio Nagasaki, Yusuke Sugino, Takafumi Hida, Yusuke Nakayama, Keisuke Hirano
  • Publication number: 20130135745
    Abstract: The present invention provides a glass composition and a light extracting member using the same, where the glass composition does not substantially contain a lead oxide and an alkali metal oxide and has a glass transition temperature of 530° C. or less and acid resistance property. The present invention relates to an alkali-free cover glass composition which does not substantially contain a lead oxide and an alkali metal oxide; has a refractive index (nd) of 1.7 to 2.3; has a glass transition temperature of 530° C. or less; has a dissolution depth of less than 1.3 ?m as measured by an acid dipping weight loss measurement method; and contains 8 to 25% of Nb2O5 in terms of mol % on the basis of an oxide thereof.
    Type: Application
    Filed: January 25, 2013
    Publication date: May 30, 2013
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventor: ASAHI GLASS COMPANY, LIMITED
  • Patent number: 8451540
    Abstract: Disclosed is a film suitable for improvement of luminance, contrast and view angle of a liquid crystal display. Specifically disclosed is a retardation film having a thickness of 30-500 ?m, a light transmittance of not less than 85%, and an Nz factor of not less than 10.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: May 28, 2013
    Assignees: MGC Filsheet Co., Ltd., Mitsubishi Gas Chemical Company, Inc.
    Inventors: Kenji Kato, Katsushige Hayashi, Noriyuki Kato, Haruaki Eto, Syoichi Nito
  • Publication number: 20130128198
    Abstract: A symmetric diffusion film (SDF) and a flat panel display applied with the same are provided. The SDF comprises at least two different materials of a first material having a first refractive index mixed with a second material having a second refractive index, and the first refractive index is different from the second refractive index. The flat panel display comprises a symmetric diffusion film (SDF) disposed at one side of the upper polarizer, and the upper polarizer adapting no compensation film.
    Type: Application
    Filed: November 21, 2011
    Publication date: May 23, 2013
    Applicant: CHIMEI INNOLUX CORPORATION
    Inventor: Minoru SHIBAZAKI
  • Patent number: 8444271
    Abstract: The disclosure provides an apparatus for reducing speckle in a projection visual display (PVD) system, a method of reducing visible speckle in a PVD system and a PVD system incorporating the method or apparatus. In one embodiment, the apparatus includes a diffuser interposable in an optical path of a PVD system and a diffuser actuator having a single drive axis configured to cause the diffuser to travel in a Lissajous curve at least partially transverse to the optical path.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: May 21, 2013
    Assignee: Texas Instruments Incorporated
    Inventors: James C. Dunphy, Stephen W. Marshall
  • Publication number: 20130121018
    Abstract: A diffusion sheet includes a light-transmissive substrate, a plurality of structures, and a flat portion. The light-transmissive substrate includes a first main surface, and a second main surface. The plurality of structures have convex shapes and are randomly formed on the first main surface. The flat portion is formed among the plurality of structures on the first main surface and has a surface roughness (Ra) of no less than 0.9 ?m.
    Type: Application
    Filed: July 19, 2012
    Publication date: May 16, 2013
    Applicant: Sony Corporation
    Inventors: Jun SASAKI, Akihiro HORII
  • Publication number: 20130121021
    Abstract: The present disclosure provides a composite optical film including a brightness enhancement film, a high refractive-index layer, and an intermediate layer. The brightness enhancement film has a plurality of brightness enhancement structures parallel to each other, and a top surface and a bottom surface opposite to each other. The brightness structures are disposed on the top surface. The high refractive-index layer is disposed on the bottom surface, and includes a film and a plurality of inorganic nano-particles disposed within the film. The intermediate layer is disposed between the brightness enhancement film and the high refractive-index layer.
    Type: Application
    Filed: September 13, 2012
    Publication date: May 16, 2013
    Applicant: AU OPTRONICS CORP.
    Inventors: Yi-Wen Lin, Jen-Yuan Chi
  • Publication number: 20130114269
    Abstract: A translucent conductive substrate (1) for Organic Light Emitting Device comprising, a transparent support (10), a scattering layer (11) formed over the transparent support (10) and comprising a glass which contains a base material (110) having a first refractive index for at least one wavelength of light to be transmitted and a plurality of scattering materials (111) dispersed in the base material (110) and having a second refractive index different from that of the base material and a transparent electrode (12) formed over the scattering layer (11), said electrode (12) comprising at least one metal conduction layer (122) and at least one coating (120) having properties for improving the light transmission through said electrode, said coating (120) comprises at least one layer for improving light transmission (1201) and is located between the metal conduction layer (122) and the scattering layer (11), on which said electrode (12) is deposited.
    Type: Application
    Filed: July 15, 2011
    Publication date: May 9, 2013
    Applicants: Asahi Glass Company, Limited, AGC Glass Europe
    Inventors: Benoit Domercq, Philippe Roquiny, Daniel Decroupet, Nobuhiro Nakamura, Naoya Wada, Nao Ishibashi
  • Publication number: 20130094088
    Abstract: A diffusely reflective optical film includes a blended layer extending from a first to a second zone of the film. The blended layer includes first and second polymer materials separated into distinct first and second phases, respectively. The blended layer may have the same composition and thickness in the first and second zones, but different first and second diffusely reflective characteristics in the first and second zones, respectively. The difference between the first and second diffusely reflective characteristics may not be attributable to any difference in composition or thickness of the layer between the first and second zones. Instead, the difference between the first and second diffusely reflective characteristic may be attributable to a difference in birefringence of the first and/or second polymer materials between the first and second zones. The blend morphology of the blended layer may be substantially the same in the first and second zones.
    Type: Application
    Filed: June 29, 2011
    Publication date: April 18, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: William Ward Merrill
  • Patent number: 8422111
    Abstract: A leaky travelling wave array of optical elements provide a solar wavelength rectenna.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: April 16, 2013
    Assignee: AMI Research & Development, LLC
    Inventors: John T. Apostolos, Judy Feng, William Mouyos
  • Patent number: 8422135
    Abstract: An optical sheet for use as a display device surface, has a functional layer on at least one side of a transparent base material and has a diffusion factor on the outer surface and/or interior of the functional layer, wherein the relationship represented by the following formula (I) is satisfied. 0.16<R/V<0.71??(I) R (diffuse regular reflection intensity): Intensity in the direction of the diffuse regular reflection V: Sum of the diffuse reflection intensities measured for each degree between ?? degrees and +? degrees with respect to the direction of diffuse regular reflection when the optical sheet is irradiated with visible light rays.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: April 16, 2013
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Takashi Kodama, Gen Furui, Makoto Honda
  • Publication number: 20130081690
    Abstract: Spectral modification devices and methods are described. For example, an apparatus for spectral modification of incident radiation includes a substrate and Raman shifting material embedded in or on the substrate, the Raman shifting material selected based on a desired optical or electrical performance of a light absorbing structure.
    Type: Application
    Filed: April 26, 2012
    Publication date: April 4, 2013
    Inventors: Charles M. Fortmann, Eric David Laufer
  • Publication number: 20130083269
    Abstract: The present invention discloses a compound optical diaphragm, a backlight module and a liquid crystal display (LCD) device; the compound optical diaphragm comprises at least two cross brightness enhancement films (BEF*2), wherein a DF with high forward penetration rate is attached to the BEFs. The forward penetration rate of the DF with high forward penetration rate is more than 85% and less than 95%. In the present invention, by completely studying the relationship between the forward penetration rate of the DF and the luminance gain of the overall optical diaphragm in the structure formed by the DF and the cross BEFs, the appropriate range of the forward penetration rate of the DF with high forward penetration rate is determined; the optical effect of the DF is guaranteed; the luminance gain of the compound optical diaphragm is obviously increased; and the appropriate luminance of the backlight module is achieved.
    Type: Application
    Filed: October 14, 2011
    Publication date: April 4, 2013
    Inventors: Kuangyao Chang, Hu He, Lindong Fang
  • Publication number: 20130077316
    Abstract: A display device comprising a light source and having an optical waveguide, a louver, an anisotropic scattering sheet, and a transmissive liquid crystal panel disposed along the path of light emitted from the light source. The light-restricting direction of the louver is tilted at an angle ? from the Y-axis direction. The value of the angle ? is set so that the arrangement direction of moiré created between the louver and the liquid crystal panel approaches the X-axis direction. A plurality of belt-shaped convex portions extending in the Y-axis direction are formed on the surface of the anisotropic scattering sheet, and are configured so that the scattering direction of the light has anisotropy. Specifically, scattering in the X-axis direction is increased, and scattering in the Y-axis direction is reduced. Moiré can thereby be reduced in a display device having increased directivity of the display.
    Type: Application
    Filed: November 21, 2012
    Publication date: March 28, 2013
    Applicants: NEC LCD Technologies, Ltd., NEC Corporation
    Inventors: NEC Corporation, NEC LCD Technologies, Ltd.
  • Patent number: 8405794
    Abstract: A light diffusing element of the present invention includes: a matrix containing a resin component and an ultrafine particle component; and light diffusing fine particles dispersed in the matrix, wherein refractive indices of the resin component, the ultrafine particle component, and the light diffusing fine particles satisfy the below-indicated expression (1); and the light diffusing element comprises a concentration adjusted area, which is formed in an outer portion of a vicinity of a surface of each of the light diffusing fine particles, and in which a weight concentration of the resin component decreases and a weight concentration of the ultrafine particle component increases with increasing distance from the light diffusing fine particles: |np?nA|<|np?nB|??(1) where nA represents the refractive index of the resin component of the matrix, nB represents the refractive index of the ultrafine particle component of the matrix, and np represents the refractive index of the light diffusing fine particles
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: March 26, 2013
    Assignee: Nitto Denko Corporation
    Inventors: Takehito Fuchida, Hiroyuki Takemoto, Shunsuke Shutou, Minoru Miyatake
  • Patent number: 8403494
    Abstract: An image formed on a reflecting optical modulator is magnified by a projection optical system and projected on a backside of a transmission-type screen. The projection optical system is constituted so that a product of an F-number and a projection magnification of the projection optical system is less than 400.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: March 26, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kuniko Kojima, Hayato Takeuchi, Tomohiro Sasagawa, Yuzo Nakano
  • Patent number: 8405908
    Abstract: A shade assembly for a display panel is provided. The shade assembly includes a frame having a plurality of elongate support members. Each support member has a flange on a first end thereof for being receivably engaged in a recess defined in the panel. A cover is slideably received by the plurality of elongate support members for shielding indirect light from the display panel.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: March 26, 2013
    Assignee: SmallHD, LLC
    Inventors: Weston Phillips, Dale Backus
  • Publication number: 20130070341
    Abstract: Optical films for redirecting light are described, and optical systems, such as display systems, incorporating such optical films are described.
    Type: Application
    Filed: May 17, 2011
    Publication date: March 21, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Robert A. Yapel, Joseph T. Aronson, Matthew R.C. Atkinson, Gary T. Boyd, Slah Jendoubi, Mitchell A.F. Johnson, Scott R. Kaytor, Steven H. Kong, Fei Lu, Tri D. Pham, Robert B. Secor, Steven D. Solomonson
  • Publication number: 20130070463
    Abstract: An embodiment of a solid optical sky-sun diffuser, which comprises a transparent solid matrix embedding a dispersion of transparent nanoparticles having an average size d in the range 10 nm?d?240 nm; wherein: the ratio between the blue and red scattering optical densities ??Log [T(450 nm)]/Log [T(630 nm)] of said diffuser falls in the range 5???2.5, where T(?) is the Monochromatic Normalized Collinear Transmittance; in at least one propagation direction, said Monochromatic Normalized Collinear Transmittance is T(450 nm)?0.4; in at least one propagation direction said Monochromatic Normalized Collinear Transmittance is T(450 nm)?0.9, said propagation direction being the same or different from that at which said Monochromatic Normalized Collinear Transmittance is T(450 nm)?0.4.
    Type: Application
    Filed: June 19, 2009
    Publication date: March 21, 2013
    Applicant: LIGHT IN LIGHT S.R.L.
    Inventors: Paolo DI TRAPANI, Alessandro AVERCHI, Marta PIGAZZINI
  • Patent number: 8400714
    Abstract: Certain embodiments of the invention may include reflector systems, methods, and apparatus for providing a light reflector. According to an example embodiment of the invention, a method is provided for manufacturing a multi-layer light reflector. The method can include attaching a rear reflective layer to a lenticular lens optical film layer. The lenticular lens optical film layer includes a smooth surface and a structured surface. The rear reflective layer is disposed adjacent to or in contact with the smooth surface of the lenticular optical film. The method also includes attaching a diffusion layer to the lenticular lens optical film layer. The diffusion layer includes a smooth film surface and a structured diffusing surface. The smooth film surface of the diffusion film is disposed adjacent to or in contact with the structured surface of the lenticular lens optical film.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: March 19, 2013
    Assignee: Southpac Trust International, Inc., Trustee of the LDH Trust
    Inventor: Leslie D. Howe
  • Patent number: 8398274
    Abstract: Light redirecting film including a thin optically transparent substrate having a pattern of individual optical elements of well-defined shape on at least one surface that are quite small relative to the length and width of the surface. At least some of the optical elements have at least one flat surface and at least one curved surface, and intersecting each other over an intersection volume of the intersecting optical elements.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: March 19, 2013
    Assignee: Rambus International Ltd.
    Inventors: Jeffery R. Parker, Timothy A. McCollum
  • Publication number: 20130062654
    Abstract: Disclosed is a novel light extraction sheet which not only improves light extraction efficiency but suppresses color change with the angle of observation, an organic EL dement employing this light extraction sheet, and art illumination device employing the element. The light extraction sheet is featured in that it comprises a transparent resin film and provided thereon, a light scatter layer containing a binder resin and light scattering particles with an average particle size of front 0.2 to 1.0 ?m dispersed in the binder resin and a concavo-convex layer containing a binder resin and spherical particles with an. average particle size of from 3 to 10 ?m.
    Type: Application
    Filed: May 17, 2011
    Publication date: March 14, 2013
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Yasuo Taima, Kunimasa Hiyama
  • Publication number: 20130057955
    Abstract: The present invention provides an anti-glare film having an excellent anti-glare property, and sufficiently suppressing white muddiness and scintillation, generation of cracks in a process for attaching the films to polarizing elements and a fabrication process of liquid crystal cells, and changes of an anti-glare property over time, even if the film is used in a high definition display.
    Type: Application
    Filed: March 17, 2011
    Publication date: March 7, 2013
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Takashi Kodama, Makoto Honda, Hiroko Suzuki
  • Publication number: 20130048839
    Abstract: A reflective minor includes a reflective film, a light-transmitting base and a light-transmitting adhesive layer. The reflective film includes a first connection surface and a plurality of reflection structures opposite to the first connection surface. Each reflection structure protrudes away from the first connection surface. The light-transmitting base includes a light penetration surface and a second connection surface opposite to the light penetration surface. The light-transmitting adhesive layer is disposed between the reflective film and the light-transmitting base and connected to the first connection surface and the second connection surface. An optical touch device is also provided in the present invention. Thus, the reflective minor as well as the optical touch device are easy to be manufactured and accordingly have a lower production cost.
    Type: Application
    Filed: June 20, 2012
    Publication date: February 28, 2013
    Applicant: PixArt Imaging Inc.
    Inventors: Hui-Hsuan Chen, Hung-Ching Lai
  • Publication number: 20130050992
    Abstract: A planar ion-exchanged glass sheet for out-of-plane light beam coupling includes a first surface, a ion-exchanged first glass region adjacent and parallel to the first surface, a core glass region adjacent and parallel to the first glass region, a ion-exchanged second glass region adjacent and parallel to the core glass region, and a second surface adjacent and parallel to the second glass region. One edge of the glass sheet has an angled end face that is inclined to the plane extends across a thickness of at least one of the glass regions. Methods of making the planar ion-exchanged glass sheet, coupling an out-of-plane light beam into a plane using the planar ion-exchanged glass sheet, and scattering the coupled light to illuminate at least select regions of an exposed surface of the glass sheet are also disclosed.
    Type: Application
    Filed: October 31, 2011
    Publication date: February 28, 2013
    Inventors: Vitor M. Schneider, Alana M. Whittier
  • Publication number: 20130050830
    Abstract: A covered mandrel that includes a mandrel and a covering. The mandrel has an outer surface and comprises a first material. The covering is engaged to the outer surface of the mandrel and comprises a second material different than the first material. At least a portion of the covered mandrel is configured to scatter light.
    Type: Application
    Filed: September 22, 2011
    Publication date: February 28, 2013
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Michael Sterud, Brian Reynolds, Roger McGowan, Mark Steven Smith, Paul F. Chouinard, Kristopher Henry Vietmeier
  • Publication number: 20130050831
    Abstract: The present invention provides a light guide plate and a manufacturing method thereof. The manufacturing method of the light guide plate mainly first forms a light guide plate body, and then forms a plurality of light-guide scattering portions in an interior of the light guide plate body, and the light-guide scattering portions are arranged according to a specified manner. The light-guide scattering portions can reduce chromatic aberration of the light guide plate, prevent dot mura and increase light emitting efficiency.
    Type: Application
    Filed: August 30, 2011
    Publication date: February 28, 2013
    Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Chechang Hu, Jianfa Huang
  • Publication number: 20130050655
    Abstract: A screen member diffuses a bundle of rays of light projected from a laser scanner such that the bundle of rays of light is guided to a viewing range. The screen member includes a plurality of optical elements. A surface of each optical element forms a curved surface that diffuses the bundle of rays of light, which enters the curved surface. The optical elements are arranged in a lattice pattern at each corresponding pitch that is set to adjust a peak-to-peak interval of diffracted rays, which are formed in the viewing range by diffraction of the bundles of rays diffused by the plurality of optical elements, to a value that is equal to or smaller than a diameter of a pupil of the viewer.
    Type: Application
    Filed: August 24, 2012
    Publication date: February 28, 2013
    Applicant: DENSO CORPORATION
    Inventors: Takayuki Fujikawa, Hiroshi Ando
  • Patent number: 8379165
    Abstract: An optical plate includes a planar base and a plurality of rounded prisms formed on the planar base. The rounded prisms improve a uniformity of the light passing through the planar base and then irradiate the light having the improved uniformity. A concave peak formed in each of the plurality of rounded prisms of the optical plate scatters the light provided into a rear face of the optical plate so that dark lines and bright lines are not generated on the optical plate. As a result, the optical plate has improved light efficiency.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: February 19, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung-Wook Paek, Jin-Soo Kim, Byung-Yun Joo, Ju-Hwa Ha, Jin-Sung Choi, Min-Young Song
  • Patent number: 8376589
    Abstract: A layered dimmer formed of different layers. The front layer may be a scattering layer, and the back layer may be a reflective layer. The light beam is scattered prior to reflecting, to avoid reflection back to form hotspots.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: February 19, 2013
    Assignee: Production Resource Group, LLC
    Inventor: James Bornhorst