Diffusing Of Incident Light Patents (Class 359/599)
-
Patent number: 9971165Abstract: A 3D display apparatus is disclosed and has a display panel, a collimating backlight module, a lens array and a curved diffuser array. The lens array is mounted on the display panel and has a plurality of lens units arranged in an array manner. The curved diffuser array is mounted between the display panel and the lens array and includes a plurality of curved diffuser plates arranged in an array manner. The positions of the curved diffuser plates correspond to the positions of lens units, respectively. The light of a two-dimensional image projected by the display panel first goes through a diffusion treatment provided by the curved diffuser array, and then passes through the lens array to reconstruct a 3d scene.Type: GrantFiled: January 7, 2015Date of Patent: May 15, 2018Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Jianhong Chen
-
Patent number: 9946147Abstract: To provide a transmission-type transparent screen which is excellent in the see-through property for a scene on the other side of the transparent screen as viewed from an observer in a state where no image-forming light is projected from a projector and which is excellent in visibility of an image displayed on the transparent screen as viewed from the observer in a state where image-forming light is projected from the projector, as well as an image display system and an image display method, employing the transparent screen. A transmission-type transparent screen 1 which has a first surface A and a second surface B on the opposite side thereof and which has a light scattering layer 34 comprising a transparent resin 32 and a light scattering material 33, wherein the light scattering layer 34 further contains a light absorbing material, the haze is from 3 to 30%, the total light transmittance is from 15 to 95%, and the diffuse reflectance is from 0.1 to 2.4%.Type: GrantFiled: April 4, 2017Date of Patent: April 17, 2018Assignee: Asahi Glass Company, LimitedInventors: Masamichi Ide, Yukihiro Tao, Kenta Sekikawa, Hitoshi Tsujimura, Yuriko Kaida
-
Patent number: 9939562Abstract: A diffuser plate, comprising: a substrate (4), wherein an upper surface of the substrate (4) comprises at least a first concave surface (42), a lower surface of the substrate (4) comprises at least a second concave surface (41); a first base layer (5) disposed on the upper surface of the substrate (4); a first scattering particle film layer (6) disposed on an upper surface of the first base layer (5); a second base layer (3) disposed on the lower surface of the substrate (4); and a second scattering particle film layer (2) disposed on a lower surface of the second base layer (3).Type: GrantFiled: November 30, 2012Date of Patent: April 10, 2018Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.Inventor: Minghui Zhang
-
Patent number: 9911671Abstract: The present disclosure discloses an encapsulation system and an encapsulation method, the encapsulation system including a thickness detection unit, an output control unit and an energy output unit, the thickness detection unit being connected with the output control unit, and the output control unit being connected with the energy output unit. The thickness detection unit is configured to detect a thickness of an encapsulant at a to-be-heated location in a component to be encapsulated and generate corresponding thickness information. The output control unit is configured to generate corresponding output control information depending on the thickness information. The energy output unit is configured to output, depending on the output control information, to the encapsulant at the to-be-heated location energy for heating the encapsulant.Type: GrantFiled: March 17, 2015Date of Patent: March 6, 2018Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOTECHNOLOGY CO., LTD.Inventors: Jiuxia Yang, Feng Bai, Liang Zhang, Xu Chen, Ang Xiao
-
Patent number: 9904161Abstract: A lighting device includes at least one excitation radiation source designed to emit excitation radiation; a wavelength conversion arrangement, which is arranged in such a way that excitation radiation can be radiated onto a wavelength conversion element. The wavelength conversion element is designed to convert excitation radiation into conversion light. An unavoidable non-converted part of the excitation radiation is reflected by the wavelength conversion element. The device further includes a unit for collimating the excitation radiation to form at least one collimated excitation beam; a unit for directing the at least one collimated excitation beam onto the at least one wavelength conversion element; a unit, which is arranged between collimation optical unit and converging optical unit and has at least one region for reflecting that part of the at least one excitation beam which is not converted, but rather is reflected by the at least one wavelength conversion element.Type: GrantFiled: October 29, 2014Date of Patent: February 27, 2018Assignee: OSRAM GmbHInventor: Sergey Khrushchev
-
Patent number: 9904069Abstract: Embodiments described herein provide apparatus and methods for processing semiconductor substrates with uniform laser energy. A laser pulse or beam is directed to a spatial homogenizer, which may be a plurality of lenses arranged along a plane perpendicular to the optical path of the laser energy, an example being a microlens array. The spatially uniformized energy produced by the spatial homogenizer is then directed to a refractive medium that has a plurality of thicknesses. Each thickness of the plurality of thicknesses is different from the other thicknesses by at least the coherence length of the laser energy.Type: GrantFiled: May 11, 2016Date of Patent: February 27, 2018Assignee: APPLIED MATERIALS, INC.Inventor: Stephen Moffatt
-
Patent number: 9856021Abstract: An elongated lighting apparatus includes: a light source (linear light source); and an elongated optical component which transmits light emitted from the light source. The optical component has an elongated entrance surface where the light from the light source enters and an elongated exit surface where the light which has entered the entrance surface exits. The optical component includes light diffusers. Among the light diffusers, at least one of light diffusers disposed near a first end of the optical component diffuses the light from the light source, toward the first end side of the optical component more widely than (i) light diffusers disposed near a second end of the optical component do or (ii) light diffusers disposed near the center of the optical component do. The first and second ends, and the center of the optical component are in the longitudinal direction of the optical component.Type: GrantFiled: February 8, 2016Date of Patent: January 2, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Naotaka Hashimoto, Nobuyuki Matsui, Takashi Ohta
-
Patent number: 9841541Abstract: The present invention discloses a light redirecting film. The light redirecting film comprises a support substrate and an optical substrate. The support substrate comprises a unitary body, wherein the unitary body has a first surface and a second surface opposite to the first surface. The optical substrate has a third surface and a fourth surface opposite to the third surface, wherein the fourth surface is a structured surface, and the second surface of the unitary body faces the third surface of the optical substrate. A plurality of particles are disposed in a region below the first surface of the unitary body, wherein the thickness of the region is smaller than the thickness of the unitary body.Type: GrantFiled: October 16, 2014Date of Patent: December 12, 2017Assignee: UBright Optronics CorporationInventors: Nan-I Liu, Han-Tsung Pan
-
Patent number: 9829611Abstract: An optical film may include a light diffusion portion including light scattering particles dispersed in a light transmissive media, and a light transmission portion including the light transmissive media. The light diffusion portion may be adjacent the light transmission portion.Type: GrantFiled: June 30, 2015Date of Patent: November 28, 2017Assignee: Samsung Display Co., Ltd.Inventors: Duk Jin Lee, Jang Seok Ma, Nam Seok Baik, Jung Hee Son, Sang Woo An, Gyeong Im Lee
-
Patent number: 9825258Abstract: A layered structure for an organic light-emitting diode (OLED) device, the layered structure including a light-transmissive substrate and an internal extraction layer formed on one side of the light-transmissive substrate, in which the internal extraction layer includes (1) a scattering area containing scattering elements composed of solid particles and pores, the solid particles having a density that decreases as it goes away from the interface with the light-transmissive substrate, and the pores having a density that increases as it goes away from the interface with the light-transmissive substrate, and (2) a free area where no scattering elements are present, formed from the surface of the internal extraction layer, which is opposite to the interface, to a predetermined depth.Type: GrantFiled: June 14, 2013Date of Patent: November 21, 2017Assignee: SAINT-GOBAIN GLASS FRANCEInventors: Young Seong Lee, Jin Woo Han, Ji Woong Baek
-
Patent number: 9810817Abstract: A light directing film includes a structured major surface with a plurality of microstructures extending along a first direction. Each microstructure has a first region and a second region different from the first region, a substantially constant height in the first region and a non-constant maximum height in the second region greater than the substantially constant height in the first region, and a same lateral cross sectional shape in the first region and the second region.Type: GrantFiled: April 1, 2009Date of Patent: November 7, 2017Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Alan B. Campbell, Dale L. Ehnes, John F. Van Derlofske, III, Mark R. Dupre, Stephen J. Dreyer, Patrick H. Marushin, Todd M. Johnson, Bryan V. Hunt
-
Patent number: 9810818Abstract: An optical film comprises a supporting substrate and a structuralized layer integrally formed on the supporting layer and having a plurality of light-concentrating units including design that varies in height along their length or varies in pitch of prism structure to overcome the optical defects (wet-out) of the optical film and to enhance the optical properties of the optical film.Type: GrantFiled: April 12, 2016Date of Patent: November 7, 2017Assignee: UBright Optronics CorporationInventors: Kong-Hua Wang, Ching-An Yang, Han-Tsung Pan
-
Patent number: 9804300Abstract: An antiglare film, including: a light transmissive substrate; and an antiglare layer that is disposed on a light transmissive substrate and includes a concavo-convex surface, wherein a surface of the antiglare film is a concavo-convex surface; the antiglare film has a total haze value of 0% or more and 5% or less; the antiglare film has an internal haze value of 0% or more and 5% or less; and assuming that a transmission image sharpness of the antiglare film, measured using an optical comb with a width of 0.125 mm, is C (0.125), and that a transmission image sharpness of the antiglare film, measured using an optical comb with a width of 0.25 mm, is C (0.25), an expression (1) and an expression (2) described below are satisfied: C(0.25)?C(0.125)?2%??(1); and C(0.125)?65%??(2).Type: GrantFiled: June 19, 2014Date of Patent: October 31, 2017Assignee: Dai Nippon Printing Co., Ltd.Inventors: Junya Eguchi, Teppei Sotoda, Shoichiro Ogumi, Kousuke Matsuyama, Gen Furui
-
Patent number: 9798045Abstract: An antireflection film, comprising a film including: hollow particles; and a binder bonding the particles, wherein: the binder contains voids; and the binder contains 10 or less voids each having a cross-sectional area of 1,000 nm2 or more with respect to 1 ?m2 of a cross-sectional area of the binder. A method of producing the film, comprising: forming a paint into a film by applying the paint onto a substrate, the paint containing hollow particles, a binder, and a solvent, in which a content of the particles is 50-85 wt % and a content of the binder is 15-40 wt % with respect to a total weight of a solid content of the paint, and the paint has a viscosity of 1.3-2 mPa·s at its film-forming temperature; and drying the film.Type: GrantFiled: October 5, 2011Date of Patent: October 24, 2017Assignee: CANON KABUSHIKI KAISHAInventor: Masanobu Ogane
-
Patent number: 9778408Abstract: A backlight module includes a plurality of first light emitting elements and a light guiding plate including a first side, a second side and a light output side having microstructures at least disposed in a near-light region of the light guiding plate. The near-light region is defined as from a first line to a predetermined second line at the light output side. The microstructure has a width P and height H, the light-guiding plate has a thickness T, a pitch between the adjacent first light-emitting elements is defined as PLED, a projection distance from a luminance measuring line of the backlight module to the first light-emitting elements is defined as A. Under the conditions 0<A?120 mm, 0<[(H/P)/T]*PLED?15 and 0<luminance variation?100%, the structure characteristic of the backlight module is bounded by a first equation: A=0.2{[(H/P)/T]*PLED}2?2{[(H/P)/T]*PLED}+105 mm and a second equation: A=0.2{[(H/P)/T]*PLED}2?2{[(H/P)/T]*PLED}+0.1 mm.Type: GrantFiled: May 14, 2014Date of Patent: October 3, 2017Assignee: Innolux CorporationInventors: Chi-Liang Chang, Chia-Wei Hu, Yen-Liang Chen, Chia-Feng Chen
-
Patent number: 9774012Abstract: An organic light-emitting component (100) is specified, which comprises a carrier (1) and an organic layering sequence (2) arranged on the carrier (1). The organic layering sequence (2) comprises at least two organic layers, wherein at least one of the organic layers is designed as an emitting layer (23). The emitting layer (23) emits light (200) of a first wavelength range, which has an intensity maximum at a first wavelength. Further, the organic light-emitting component (100) comprises an anode (3) and a cathode (4) which provide the electrical contacting of the organic layering sequence (2). Further, the organic light-emitting component (100) has at least one nanoparticle layer (20), wherein one nanoparticle layer (20) is an organic layer of the organic layering sequence (2) provided with first nanoparticles (5). The first nanoparticles (5) have a refractive index (nN) that is smaller than at least one refractive index of an organic material of one of the organic layers.Type: GrantFiled: December 2, 2014Date of Patent: September 26, 2017Assignee: OSRAM OLED GmbHInventors: Arne Fleissner, Marc Philippens
-
Patent number: 9766377Abstract: A display device window includes a polymer blending resin layer and a light transmittance film disposed on the polymer blending resin layer. The polymer blending resin layer includes a continuous phase and a dispersion phase.Type: GrantFiled: December 2, 2013Date of Patent: September 19, 2017Assignee: Samsung Display Co., Ltd.Inventor: Jong-Hwan Cho
-
Patent number: 9763288Abstract: An EL panel including: a light-transmissive substrate; an EL element including a light-emitting medium layer interposed between a cathode and an anode, the EL element being provided on one surface of the light-transmissive substrate; and a protection sheet on the other surface of the light-transmissive substrate of the EL element. The protection sheet has a surface opposite to the light-transmissive substrate, the shape of the surface includes rounded convex shapes and prism shapes. Each of the rounded shapes has an apex that is a center point of a cross-section farthest from a bottom surface where the cross-section is parallel to the bottom surface of the unit convex shape and the area becomes smaller in a direction from the bottom surface of the rounded convex shape to a top portion thereof.Type: GrantFiled: July 8, 2015Date of Patent: September 12, 2017Assignee: TOPPAN PRINTING CO., LTD.Inventors: Kohhei Moronaga, Hideaki Homma, Akihito Kagotani
-
Patent number: 9756707Abstract: Electric lighting devices are described that utilize three or more light sources to generate a flickering flame effect. The light sources can emit light at different colors to more closely simulate the look of a flame. A projection system having a matrix of LEDs could be used to project an image of a flame on to a projection surface without the need or cost associated with a traditional or pico projector.Type: GrantFiled: January 30, 2014Date of Patent: September 5, 2017Assignee: Luminara Worldwide LLCInventors: Douglas Patton, Eric Ford
-
Patent number: 9753191Abstract: Provided are a light diffusion film having a single-layered light diffusion layer, in which the uniformity of the intensity of diffused light in the light diffusion angle region can be increased, or the light diffusion angle region can be expanded effectively, by regulating the combination of the angles of inclination of pillar-shaped objects in plural columnar structure regions, and a method for manufacturing a light diffusion film. Disclosed is a light diffusion film having a single-layered light diffusion layer, the light diffusion film having a first columnar structure region and a second columnar structure region, in which plural pillar-shaped objects having a relatively high refractive index are arranged to stand close together in a region having a relatively low refractive index, sequentially from the lower part of the film along the film plane.Type: GrantFiled: February 25, 2014Date of Patent: September 5, 2017Assignee: LINTEC CorporationInventors: Kentaro Kusama, Baku Katagiri, Tomoo Orui, Satoru Shoshi
-
Patent number: 9726789Abstract: An optical sheet includes a transparent substrate. The optical sheet further includes light-scattering elements randomly and nonperiodically distributed in the transparent substrate. Each light-scattering element of the light scattering elements includes a binding-material member and light-scattering particles dispersed in the binding-material member. A weight percent calculated from dividing a total weight of light-scattering particles of the light-scattering elements by a total weight of the light-scattering elements is in a range of 5 wt % to 40 wt %.Type: GrantFiled: October 8, 2014Date of Patent: August 8, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae-Ik Lim, Won-Sang Park
-
Patent number: 9709711Abstract: A wavelength-selective optical diffuser comprising a substrate of a first material having opposite first and second surfaces, wherein said first material is transparent to a first wavelength ?S and a second wavelength ?L, with ?L>4?S; at least a first surface of said substrate having a surface relief such that a beam of light having the first wavelength ?S is diffused, with a rms phase delay S>?/4, when traversing said substrate; and a beam of light having the second wavelength ?L is minimally diffused, with a rms phase delay S<?/4, when traversing said substrate.Type: GrantFiled: September 18, 2013Date of Patent: July 18, 2017Assignees: HRL Laboratories, LLC, The Boeing CompanyInventors: Daniel Yap, Hasan Sharifi, Don F. Weston, Rajesh D. Rajavel
-
Patent number: 9709706Abstract: An optical unit having an antireflection function includes a wave surface having a wavelength equal to or shorter than a wavelength of visible light. The wave surface has a curved plane which curves in a recessed shape between an apex portion and a bottom portion of the wave surface. An inflection point of an area of a cross section obtained by cutting through the wave surface in a plane perpendicular to a direction of vibration of the wave surface is positioned toward the bottom portion of the wave surface from a center of the vibration.Type: GrantFiled: February 21, 2014Date of Patent: July 18, 2017Assignee: Sony CorporationInventors: Shunichi Kajiya, Hiroshi Tazawa, Rie Tsubo, Kazuya Hayashibe, Hiroshi Tanaka, Toru Yatabe
-
Patent number: 9678382Abstract: Provided is a light unit including a plurality of LED light sources formed on a PCB, a resin layer stacked on the PCB to diffuse and guide emitted light forwards, and a diffusion plate having an optical pattern printed thereon to shield light emitted from the LED light sources. The optical pattern is composed of a diffusion pattern implemented as at least one layer, or a combination of the diffusion pattern layer and a light shielding pattern. The light unit forms an optical pattern for shielding or diffusing light on a surface of a light diffusion plate of the back-light unit, and combines a diffusion pattern and a metal pattern to attain uniformity of light and realize a yellow-light shielding effect, thus leading to a reliable light quality.Type: GrantFiled: September 9, 2011Date of Patent: June 13, 2017Assignee: LG INNOTEK CO., LTD.Inventors: Kwang Ho Park, Woo Young Chang, Chul Hong Kim, Byoung Eon Lee
-
Patent number: 9678381Abstract: A liquid crystal device includes first pixels and second pixels which are adjacent to one another and are partitioned by light shielding portions. The liquid crystal device also includes an element substrate, an opposing substrate which is disposed to oppose the element substrate, a liquid crystal layer which is disposed between the element substrate and the opposing substrate, first micro lenses which correspond to the first pixels which are disposed on the opposing substrate, and second micro lenses which correspond to the second pixels and have different lens diameters from the first micro lenses. A boundary between the first micro lenses and the second micro lenses is disposed in a region which overlaps the light shielding portions in plan view.Type: GrantFiled: August 4, 2014Date of Patent: June 13, 2017Assignee: Seiko Epson CorporationInventor: Koichiro Akasaka
-
Patent number: 9678248Abstract: In order to improve the scratch resistance of an antireflective article having a moth-eye structure, an antireflective article is provided that has fine protrusions densely arranged therein, and has the interval between adjacent fine protrusions being no more than the shortest wavelength in the wavelength band for antireflection. At least some of the fine protrusions are fine protrusions having a plurality of apexes.Type: GrantFiled: July 31, 2013Date of Patent: June 13, 2017Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Yoshihiro Fukui, Hironori Kamiyama, Yuichi Miyazaki, Takafumi Shibata, Masafumi Tanaka, Kazuo Matsufuji, Nobu Masubuchi, Yuri Shimozaki, Youichirou Oohashi
-
Patent number: 9671528Abstract: There is provided an optical sheet which can prevent problems when it is superimposed on another member. The optical sheet includes: a sheet-like base layer; a light control layer having unit shaped elements arranged in a direction parallel to a sheet surface of the base layer; and a light diffusing layer disposed between the base layer and the light control layer. The light diffusing layer includes a binder resin portion and particles dispersed in the binder resin portion. The particles in the binder resin portion includes a single particle and an aggregate formed of aggregated single particles.Type: GrantFiled: October 6, 2009Date of Patent: June 6, 2017Assignee: Dai Nippon Printing Co., Ltd.Inventors: Takayuki Shimada, Fumihiro Arakawa, Satoshi Goishihara, Hiroshi Kojima, Runa Nakamura, Akinobu Ushiyama, Satoko Maenishi, Kazuki Tanaka, Akiko Tomita
-
Patent number: 9664821Abstract: An optical element has a plurality of structures including convex portions or concave portions arranged on a base member surface, wherein the arrangement pitch of the structures is 380 nm to 680 nm and the aspect ratio of the structure is 0.62 to 1.09.Type: GrantFiled: October 16, 2008Date of Patent: May 30, 2017Assignee: DEXERIALS CORPORATIONInventors: Sohmei Endoh, Kazuya Hayashibe, Tooru Nagai
-
Patent number: 9632217Abstract: A composition for light diffusion film in which the angle of aperture of diffused light in a light diffusion film obtainable therefrom can be expanded effectively, and a light diffusion film obtainable by the composition for light diffusion film are provided.Type: GrantFiled: February 4, 2014Date of Patent: April 25, 2017Assignee: LINTEC CorporationInventors: Kentaro Kusama, Baku Katagiri, Tomoo Orui, Satoru Shoshi
-
Patent number: 9627653Abstract: Provided is an organic EL element having both excellent light extraction efficiency and excellent weather resistance. The organic EL element (10) has a configuration comprising: an organic EL element main body (1) including an organic compound layer (13) including a light-emitting layer; and a light extraction sheet (2) provided on the light-extraction side of the organic EL element main body (1). In addition, the organic EL element (10) is characterized by: the light extraction sheet (2) including a silicon compound; the haze value of the light extraction sheet (2) being at least 90; and the total light transmittance of the light extraction sheet (2) being at least 80%.Type: GrantFiled: October 3, 2012Date of Patent: April 18, 2017Assignee: KONICA MINOLTA, INC.Inventors: Kuniaki Uezawa, Masakazu Tonishi
-
White reflective film for edge-light type backlight, and liquid crystal display backlight using same
Patent number: 9625120Abstract: A white reflective film for an edge light backlight improves the luminance and unevenness therein, avoids uneven close contact with, and scraping of, the light guide plate, and minimizes the crushing of convexes formed on at least one side, even in cases where the reflective film is laid directly over a corrugated chassis designed to house circuitry or the reflective film is used in combination with LEDs. The film satisfies (i) to (iii): (i) a stiffness of 2 to 10 mN·m; (ii) convexes have been formed on at least one face (A), and their maximum height is 5 to 60 ?m; (iii) the convexes contain an aromatic polyester.Type: GrantFiled: March 14, 2012Date of Patent: April 18, 2017Assignee: Toray Industries, Inc.Inventors: Yoshihiko Sakaguchi, Yuji Kawata, Motoyuki Suzuki -
Patent number: 9599297Abstract: Improved soft lighting systems for the arts, media, and entertainment industry are disclosed. In certain aspects, the systems employ one or more edge-lit LED light guide panels using high flux, optical grade, and/or binned LEDs to produce higher quality, uniform, diffused soft visual media light. In further preferred aspects the systems are modular and portable, and have light guide panels that may be axially tilted in horizontal and vertical directions to independently direct the soft light emanating from each of the panels to achieve the desired soft lighting set up.Type: GrantFiled: January 10, 2014Date of Patent: March 21, 2017Assignee: FILL-LITE, LLCInventor: Owen B. Stephens
-
Patent number: 9601719Abstract: The invention relates to a light source (1) comprising a light generating unit (2) like an organic light emitting diode and an outcoupling device (3) for coupling light out of the light generating unit in an outcoupling direction (4). The outcoupling device comprises a first region (5) for facing the light generating unit, a second region (7) having a refractive index being smaller than the refractive index of the first region, and a structured intermediate region (6) between the first region and the second region. The first region is optically homogenous and has a thickness in the outcoupling direction being larger than a coherence length of the light, thereby reducing generally possible wavelength dependent interference effects and, thus, a corresponding degradation of the outcoupling efficiency. The outcoupling efficiency can therefore be increased.Type: GrantFiled: August 29, 2012Date of Patent: March 21, 2017Assignee: OLEDWORKS GMBHInventors: Georg Friedrich Gaertner, Horst Greiner, Hans-Peter Loebl, Gerardus Henricus Rietjens
-
Patent number: 9590144Abstract: A light emitting device including a light emitting structure disposed on one surface of a substrate and a transflective portion disposed on the other surface of the substrate. The transflective portion and the substrate have different indexes of refraction from one another.Type: GrantFiled: April 27, 2016Date of Patent: March 7, 2017Assignee: Seoul Viosys Co., Ltd.Inventors: Jong Hyeon Chae, Chung Hoon Lee, Daewoong Suh, Jong Min Jang, Joon Sup Lee, Won Young Roh, Min Woo Kang, Hyun A Kim, Seon Min Bae
-
Patent number: 9580580Abstract: Provided is a cellulose ester-based resin composition having excellent processability, resistance to coloration caused by processing and flame retardancy. Also provided is a molded article having excellent color tone and flame retardancy. The cellulose ester-based resin composition of the present invention is characterized by comprising 1 to 50 parts by mass of a phosphate represented by the following Formula (1) with respect to 100 parts by mass of a cellulose ester-based resin: (wherein, R1 and R2 each independently represent a hydrogen atom or a methyl group; and n represents an integer of 1 to 5).Type: GrantFiled: June 5, 2013Date of Patent: February 28, 2017Assignee: ADEKA CORPORATIONInventors: Takashi Ayabe, Yuki Endo, Tetsuya Seguchi
-
Patent number: 9568651Abstract: The view angle-restricting sheet according to the present invention includes an optically functional layer which includes: a plurality of first light transmission sections that are rectangular in cross section and arranged in a multi-stripe fashion; and at least one second light transmission section that is/are rectangular in cross section and arranged between the first light transmission sections, at least one of the lateral face of the first light transmission section and the lateral face of the second light transmission section that face each other being provided as a light-scattering surface having a microstructure including fine protrusions. The arithmetic mean roughness (Ra) of the light-scattering surface is preferably no less than 1.5 ?m and no greater than 4 ?m. The ratio (Rz/Ra) of the ten-point mean roughness (Rz) to the arithmetic mean roughness (Ra) of the light-scattering surface is preferably no less than 1 and no greater than 20.Type: GrantFiled: March 27, 2013Date of Patent: February 14, 2017Assignee: Keiwa Inc.Inventor: Takahiro Tsuji
-
Patent number: 9568658Abstract: A backlight module includes a light guiding plate, a pattern structure, a number of LEDs, a reflecting plate, a diffusing layer, and a prism film. The pattern structure is adhered on a bottom of the light guiding plate. The LEDs are mounted on the bottom of the light guiding plate and the reflecting plate is adhered on a bottom of the pattern structure. The diffusing layer is adhered on a top of the light guiding plate. The prism film is adhered on a top of the diffusing layer.Type: GrantFiled: April 28, 2014Date of Patent: February 14, 2017Assignee: HON HAI PRECISION INDUSTRY CO., LTD.Inventor: Sei-Ping Louh
-
Patent number: 9568885Abstract: The optical diffuser mastering of the subject invention includes legacy microstructure surface relief patterns, along with smaller ones, overlaid on the larger ones. The characteristic features produced by the present invention will be found useful to eliminate visible structures in/on optical diffusers, such as those used in movie projection screens (utilizing either coherent (i.e., laser-generated) and non-coherent (e.g., lamp-generated) light), head-up displays (HUDs), laser projection viewing, etc., as the present invention produces much sharper images than those afforded by traditional holographic optical diffusers.Type: GrantFiled: August 26, 2014Date of Patent: February 14, 2017Assignee: LUMINIT LLCInventors: Anthony Ang, Stanley Tafeng Kao, Christopher Leister
-
Patent number: 9557451Abstract: A diffusing plate includes a microlens array in which a plurality of microlenses are arranged, wherein the microlenses have such a shape that a curvature of a sectional shape including a center line of the microlenses varies depending on a direction of the center line, and wherein microlenses that are different in the direction of a center line where the curvature of the outline is largest are arranged.Type: GrantFiled: June 19, 2014Date of Patent: January 31, 2017Assignee: Canon Kabushiki KaishaInventors: Masatsugu Koyama, Makoto Kojima, Yukiya Enokida, Yukinobu Okura, Masato Tanaka
-
Patent number: 9557466Abstract: Multibeam diffraction grating-based color backlighting includes a plate light guide, a multibeam diffraction grating at a surface of the plate light guide, and light sources laterally displaced from one another in a direction corresponding to a propagation axis of the plate light guide. The light sources produce light of different colors. The plate light guide is to guide light from the light sources. The multibeam diffraction grating is to couple out a portion of the guided light using diffractive coupling as a plurality of light beams of different colors in a plurality of different principal angular directions.Type: GrantFiled: July 30, 2015Date of Patent: January 31, 2017Assignee: LEIA, INCInventor: David A. Fattal
-
Patent number: 9511335Abstract: A manufacturing method of an organic-inorganic composite material includes a flocculation and fusion step to flocculate and fuse composite particles in a liquid medium, the composite particles being formed by inorganic fine particles being coated by coating layers. In one embodiment, an average particle diameter of the inorganic fine particles is 1 nm or larger and 30 nm or smaller.Type: GrantFiled: December 15, 2014Date of Patent: December 6, 2016Assignee: KONICA MINOLTA, INC.Inventors: Shingo Fujimoto, Fumitaka Mochizuki, Shinichi Hamaguchi, Go Yamaguchi, Yohei Ohno, Ito Koga, Naoko Uemura
-
Patent number: 9507986Abstract: An imaging system includes an optical system, an optical element, a lighting, and an imaging device. The optical system has different focus positions for different wavelengths of light. The optical element extends depth of field of the optical system. The lighting irradiates an object with illumination light of a wavelength that is designated from among multiple wavelengths. The imaging device captures an image of the object that is irradiated with the illumination light and is formed by the optical system.Type: GrantFiled: February 13, 2015Date of Patent: November 29, 2016Assignee: RICOH COMPANY, LTD.Inventor: Taijiroh Morihisa
-
Patent number: 9507058Abstract: The view angle-restricting sheet includes an optical function layer which includes: a plurality of first light transmission sections provided to protrude in a multi-stripe fashion; and a second light transmission section disposed around the plurality of first light transmission sections. Both sides of a top portion of the first light transmission section are formed to have a chamfer-like shape, and the first light transmission section exhibits an optical function distinct from an optical function of the second light transmission section. At least the top portion of the first light transmission section preferably has an inverted-U shaped vertical cross section. The first light transmission section preferably contains a resin matrix and a light diffusing agent contained in the matrix.Type: GrantFiled: April 22, 2013Date of Patent: November 29, 2016Assignee: KEIWA INC.Inventor: Takahiro Tsuji
-
Patent number: 9444017Abstract: According to one embodiment, the second insulating film is provided between the first interconnect portion and the second interconnect portion, and at an outer periphery of a side face of the semiconductor layer. The optical layer is provided on the first side, and on the second insulating film at the outer periphery. The optical layer is transmissive with respect to light emitted from the light emitting layer. The film is provided between the second insulating film at the outer periphery and the optical layer. The film has a roughened surface on a side in contact with the optical layer.Type: GrantFiled: September 9, 2014Date of Patent: September 13, 2016Assignee: Kabushiki Kaisha ToshibaInventors: Shinji Nunotani, Kazuo Fujimura, Shinya Ito
-
Patent number: 9383486Abstract: Films for display device covers and display device covers comprising the same are disclosed. In one embodiment, a display cover for coupling to a display device includes a perimeter portion comprising a first surface and a second surface. A film of polymeric material may be attached to at least one of the first surface or the second surface of the perimeter portion. The film may include a first array of prisms extending from an edge of the perimeter portion to a distance L. The first array of prisms may be offset from and positioned below a surface of the film by an offset spacing dz.Type: GrantFiled: November 1, 2013Date of Patent: July 5, 2016Assignee: CORNING INCORPORATEDInventors: Lovell Elgin Comstock, II, Jacques Gollier, Abbas Mehdi Kazmi, Ying Zhang
-
Patent number: 9366403Abstract: A daylighting sheet is provided which efficiently performs daylighting and in which, when the daylighting sheet is applied to an opening portion, such as a window of a building, it is possible to see an outdoor side from an indoor side. The daylighting sheet is formed by stacking a plurality of layers, the layers include: a translucent base material layer; and a light deflection layer that is formed on the base material layer, and the light deflection layer includes: light transmission portions that are aligned along one surface of the base material layer so as to be able to transmit light; and light deflection portions that are formed between the light transmission portions and deflect the light reaching the light deflection portions.Type: GrantFiled: March 21, 2013Date of Patent: June 14, 2016Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Tsuyoshi Kashiwagi, Kazunobu Ogawa, Hideki Miyata, Tatsuaki Inoue, Hiroshi Kojima
-
Patent number: 9341755Abstract: An optical film comprises a transparent supporting substrate and a structuralized layer integrally formed on the supporting layer and having a plurality of light-concentrating units including design that varies in height along their length or varies in pitch of prism structure to overcome the optical defects (wet-out) of the optical film and to enhance the optical properties of the optical film.Type: GrantFiled: August 22, 2013Date of Patent: May 17, 2016Assignee: UBRIGHT OPTRONICS CORPORATIONInventors: Ching-An Yang, Kong-Hua Wang, Kai-Jing Wang, Yi-Chun Huang, Fang-Chun Yeh
-
Patent number: 9341766Abstract: An object of the present invention is to suppress the brightness distribution in the lighting device. The backlight unit 12 according to the present invention includes an LED 17 as a light source with a light intensity distribution in which light having a peak light intensity travels in a direction inclined with respect to a front direction, a chassis 14 having an opening on a light exit side and housing the LED 17, and a light leading member 22 provided to extend from a mounting surface of the LED 17 toward the light exit side. The light leading member 22 is configured to lead light from the LED 17 toward the light exit side. The employment of the LED 17 with the above light intensity distribution enables an irradiation area A irradiated with the light having the peak light intensity to be larger. This reduces the uneven that may occur in the brightness distribution of the outgoing light.Type: GrantFiled: April 21, 2011Date of Patent: May 17, 2016Assignee: Sharp Kabushiki KaishaInventor: Takaharu Shimizu
-
Patent number: 9297933Abstract: Provided is an antiglare film having a hard coat property, capable of highly suppressing generation of a rainbow interference pattern and interference fringes in display images, preventing white muddiness and scintillation of a display screen, while giving high contrast in a bright room and a dark room. The antiglare film includes an antiglare layer having an uneven form on its surface and formed on one face of a transparent substrate having an in-plane birefringence and a retardation of 3000 nm or higher. The antiglare layer contains silica fine particles, organic fine particles, and a binder resin. The silica particles include particles forming agglomerates to be contained coarsely and densely in the antiglare layer. The agglomerates are distributed densely around the organic fine particles, and some agglomerates adhere to surfaces of the organic particles and/or some silica particles are impregnated in the inside of the organic particles.Type: GrantFiled: December 4, 2012Date of Patent: March 29, 2016Assignee: Dai Nippon Printing Co., Ltd.Inventors: Takashi Kuroda, Seiichi Isojima, Makoto Honda, Gen Furui, Junya Eguchi, Eiji Ooishi
-
Patent number: 9238577Abstract: Dynamic radiation beam shaping methods and systems, comprising: providing a radiation source for delivering an input radiation beam; disposing a first optical element substantially adjacent to the radiation source; disposing a second optical element substantially adjacent to the first optical element; and moving one or more of the first optical element and the second optical element relative to one another such that either an output radiation beam has a variable predetermined shape or the output radiation beam maintains a predetermined shape when the input radiation beam is varied. Optionally, the first optical element and the second optical element each comprise a freeform shape and predetermined diffractive characteristics, refractive characteristics, reflective characteristics, hybrid characteristics, gradient index materials, metamaterials, metasurfaces, subwavelength structures, and/or plasmonics.Type: GrantFiled: December 27, 2013Date of Patent: January 19, 2016Assignee: The University of North Carolina at CharlotteInventors: Thomas J. Suleski, Paul J. Smilie, Jason A. Shultz