Diffusing Type Patents (Class 362/355)
  • Patent number: 11199308
    Abstract: A universal light box for mounting a light to either side of a trailer or vehicle may include a first U-shaped element engaged with a second U-shaped element, the elements together forming a substantially rectangular light box. A front surface of the light box may include a second lens orifice, and a first side surface of the light box may include a first lens orifice. Both the top and bottom surfaces may include mounting tabs. The top and bottom surfaces may be sized to extend past the front surface and the side surface to provide extension lips for protection purposes.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: December 14, 2021
    Inventor: Larry Cathey
  • Patent number: 10775550
    Abstract: The present disclosure relates to an optical film configured on a top of a light guide plate. The optical film is made of quantum dot (QD) material, and the optical film is filled with a plurality of diffusion particles configured to uniformly distribute incident light toward different angles. As such, the backlight emitted from the backlight module may be uniform and may be emitted toward different angles, the color difference and the chromaticity of the display device from different viewing angles may be the same, and the performance of the display device may be improved.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: September 15, 2020
    Inventors: Jianyu Chang, Yungjui Lee, Yuchun Hsiao, Shengjer Changchien
  • Patent number: 10620041
    Abstract: An electronic device for determining an ultraviolet (UV) dose includes a memory, at least one non-UV sensor, a display, and a processor, coupled to the memory, the at least one non-UV sensor, and the display. The processor is configured to determine a context of the electronic device, obtain information of ambient light using one or more parameter sensed by the light sensor, estimate an ultraviolet (UV) dose based on the context of the electronic device and the information of ambient light, and control the display to output information of the UV dose.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: April 14, 2020
    Inventors: Vijay Narayan Tiwari, Soumyabrata Dey, Saswata Sahoo, Rangavittal Narayanan, Aloknath De
  • Patent number: 10520764
    Abstract: The present disclosure provides a display screen, a display device, and a mobile terminal. The display screen includes a light-shielding panel and a display panel. The light-shielding panel is provided with a hollow-out groove, and the hollow-out groove is configured so that a fingerprint module is fastened in the hollow-out groove. The display panel is superposed on a side of the light-shielding panel towards a user. A side of the display panel towards the light-shielding panel is provided with an ink layer. An orthographic projection area of the ink layer on the light-shielding panel coincides with the hollow-out groove. Chromaticity of the ink layer is consistent with chromaticity of a side of the light-shielding panel towards the display panel.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: December 31, 2019
    Inventors: Le Yang, Haiping Zhang
  • Patent number: 10486632
    Abstract: Disclosed herein are structures and methods for assembling said structures to provide a glass-based and flush implementation of a display structure for a vehicle-based context. Employing the aspects disclosed herein, an implementer is provided a structure capable of passing head-impact tests, while prevent stray shard creation and providing an aesthetically superior design to convention implementation.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: November 26, 2019
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Paul Fredrick Luther Weindorf, James F. Krier
  • Patent number: 10302262
    Abstract: A light fixture includes a LED assembly and a housing. A first end cap is permanently connected to the troffer. A lens assembly comprises a lens covering the LED assembly and a second end cap, the lens having a first end connected to the second end cap and a second end releasably connected to the first end cap. The second end cap is releasably connected to the housing such that the lens and the second end cap are releasably mounted to the housing as a unit. The lens has a first longitudinal edge and a second longitudinal edge where a first magnetic strip is attached to the first longitudinal edge and a second magnetic strip is attached to the second longitudinal edge. The first and second magnetic strips are magnetically adhered to the housing.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: May 28, 2019
    Assignee: Cree, Inc.
    Inventors: Yaote Huang, James Hugh Bowden, Jr., Curt Progl
  • Patent number: 10259384
    Abstract: A dual graphic label for an input element of a control device for selectively displaying a first graphic information and a second graphic information includes a first light source, a second light source, an optical masking shield, a light conducting body, and a display face. The optical masking shield has a light blocking surface with a light permeable area in a shape of the first graphic information. The light conducting body has a surface with a light diffusion area in a shape of the second graphic information. The first light source emits a first light ray and the second light source emits a second light ray. The optical masking shield is arranged between the first light source and the light conducting body, and the light conducting body is arranged between the display face and the optical masking shield.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: April 16, 2019
    Assignee: Continental Automotive GmbH
    Inventors: Ling Chih Daniel Teng, Leonardus Novianto Depari
  • Patent number: 10261234
    Abstract: A display device includes: a display panel; a light source; and a light guide plate receiving light from the light source and providing the light to the display panel. The light guide plate includes an upper surface facing the display panel, a light incident surface facing the light source and a light opposing surface opposing the light incident surface. The upper surface includes a lens pattern and the lower surface incudes a prism pattern, the prism pattern includes a plurality of prisms arranged along a first direction from the light incident surface to the light opposing surface, each of the prisms has a length extending in a second direction along a length of the light incident surface, and among the prisms arranged along the first direction within the prism pattern, the lengths of the prisms increase as a distnace from the light incident surface increases.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: April 16, 2019
    Inventors: Yongkyu Kang, Seulgi Kim, Minyoung Song, Kangwoo Lee
  • Patent number: 10180236
    Abstract: The invention described in the present specification relates to a color conversion film including: a substrate; a color conversion layer provided on the substrate; and a pressure-sensitive adhesive or adhesive layer provided on the color conversion layer, in which the color conversion layer includes an organic fluorescent material dispersed therein and the pressure-sensitive adhesive or adhesive layer includes light diffusion particles dispersed therein, a backlight unit including the same, and a display device including the same.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: January 15, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Joo Yeon Seo, Byeong In Ahn, Dong Mok Shin, Nari Kim, Seijung Park, Taesung Park, Ji Ho Kim, Hye Mi Oh
  • Patent number: 9675040
    Abstract: The disclosed device provides uniform illumination of variable intensity for a plant or animal container, e.g., a rodent cage, using infrared and broad spectrum light. Manual control or a timer can be provided. The device can mount on top of the container without need for substantial modification of the cage-or cage configuration.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: June 13, 2017
    Inventors: Daniel Cleary, Carlos I. Fonck, Henry A. Lester, Michael P. Walsh
  • Patent number: 9593822
    Abstract: The present invention relates to a light-emitting arrangement (20) comprising a light source (22) and a scattering member (24). The scattering member (24) is arranged in a three-dimensional shape in front of the light source (22) in a light output direction. Different regions of the scattering member have different optical characteristics to provide a desired total light output in respect of brightness level, scattering function and beam shape.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: March 14, 2017
    Inventors: Antonius Petrus Marinus Dingemans, Michel Cornelis Josephus Marie Vissenberg, Erik Paul Boonekamp, Willem Franke Pasveer
  • Patent number: 9232036
    Abstract: To provide the case for an electronic device where the device is equipped with the camera and the flash that are adjacent to each other. The case has at least one hole in the case body to expose the camera and the flash. The camera hole has a depth and is formed by a cylindrical wall, and the shading area is provided on the hole wall.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: January 5, 2016
    Assignee: POWER SUPPORT CO., LTD.
    Inventor: Ryoichi Mase
  • Publication number: 20150138783
    Abstract: A light diffusing member includes a base material having a light transmitting property; a plurality of light blocking sections that are formed in a scattered manner at one surface of the base material; and a light transmissive material layer that is formed at the one surface of the base material. A thickness of the light transmissive material layer is larger than a thickness of each light blocking section. The light transmissive material layer has hollow portions in regions where the light blocking sections are formed. Each hollow portion has a shape in which a cross-section area when each hollow portion is cut at a plane that is parallel to the one surface of the base material is large on a side of the corresponding light blocking section and becomes gradually smaller with increasing distance from the corresponding light blocking section. A portion of the light transmissive material layer other than where the hollow portions are formed is a light transmitting section.
    Type: Application
    Filed: December 2, 2014
    Publication date: May 21, 2015
    Inventors: Tokiyoshi UMEDA, Hidefumi YOSHIDA, Emi YAMAMOTO, Toru KANNO, Tsuyoshi MAEDA, Tsuyoshi KAMADA
  • Publication number: 20150138821
    Abstract: A resin optical member allows light to pass therethrough. The resin optical member includes a fine asperity portion formed with fine asperity structure and a flat portion not formed with fine asperity structure. The fine asperity structure include concavities or convexities formed at a pitch equal to or less than a wavelength of visible light. The fine asperity structure includes concavities or convexities having a height 37 nm or more.
    Type: Application
    Filed: January 28, 2015
    Publication date: May 21, 2015
    Inventors: Mamoru KOSUGE, Noriko Fukawa, Masashi Katayama, Takahito Osawa, Yuji Saito, Hirohisa Kato, Takehiro Shimizu, Norihito Soma
  • Patent number: 9028093
    Abstract: A method of retro-fitting an existing luminaire housing comprises the steps of removing lighting components from the existing housing, fastening a first powertray retaining assembly to an end cap of the existing housing, fastening a second powertray retaining assembly to a second end cap of the existing troffer, telescoping a powertray to a size allowing the powertray to be moved through an opening in the existing housing, inserting the powertray through the opening in the existing housing and retaining the powertray on one of the first and second retaining assemblies, telescoping the powertray to engage the other of the first and second retaining assemblies and, positioning a diffuser in the troffer. A retro-fit luminaire assembly is also disclosed.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: May 12, 2015
    Assignee: Koninklijke Philips N.V.
    Inventor: William C. Fabbri
  • Patent number: 9028114
    Abstract: Implementations of the present invention comprise lighting fixture assemblies that minimize the visibility of hardware and shadows. In particular, the lighting fixture assemblies may include no supporting hardware extending through an internal space defined, in whole or in part, by the lighting fixture assembly. In addition, the lighting fixture assemblies may include a gap between a bottom/top panel and a side panel of the lighting fixture assembly. Accordingly, lighting fixture assemblies of one or more implementations of the present invention can reduce or eliminate the visibility of internal supporting hardware and shadows on the exterior surfaces of the lighting fixture assemblies.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: May 12, 2015
    Assignee: 3form, LLC
    Inventor: Ryan Grey Smith
  • Publication number: 20150098210
    Abstract: A light diffusion sheet capable of inhibiting emission of blue light, and a backlight unit for a liquid crystal display device. The light diffusion sheet includes: a transparent substrate layer; and a light diffusion layer overlaid on the front face side of the substrate layer. The light diffusion layer is a light diffusion sheet for a backlight unit of a liquid crystal display device containing a light-diffusing agent and a binder covering the light diffusing agent, and includes a component that attenuates blue light. The blue light attenuation component is preferably a yellow fluorescent material that generates yellow light through excitation by blue light, or a light absorbing agent that absorbs blue light. The light diffusion layer preferably includes the blue light attenuation component. Preferably, the light-diffusing agent is resin beads, and the blue light attenuation component is included in the resin beads.
    Type: Application
    Filed: October 1, 2014
    Publication date: April 9, 2015
    Inventor: Akira ARAKAWA
  • Publication number: 20150085490
    Abstract: Light modules for converting the wavelength of light are described herein along with methods for using and making such modules and devices incorporating such modules.
    Type: Application
    Filed: June 20, 2012
    Publication date: March 26, 2015
    Inventors: Gregory D. Miller, William R. Freeman
  • Publication number: 20150078001
    Abstract: Laser speckle reduction using a passive diffuser. A diffuser for reducing laser speckle is disclosed comprising a diffuser having a colloid configured for placement in a light path of a coherent light source. The colloid exhibits Brownian motion. The diffuser can be formed of transparent plates containing the colloid. In a system for illumination, a coherent source of light outputting a light beam along a light path is provided; and a diffuser for reducing laser speckle effects is placed in the light path, the diffuser comprising a colloid disposed in a container that is transparent to the light beam output by the coherent source. A method includes illuminating a photosensitive sensor, comprising transmitting a coherent light from a light source through a diffuser comprising a colloid and directing the light from the diffuser onto the photosensitive sensor. Additional embodiments are disclosed.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 19, 2015
    Inventors: Bharath Patil, Karthik Rajagopal, Subhash Chandra Venkata Sadhu
  • Patent number: 8979330
    Abstract: An anisotropic light-diffusing film, an anisotropic light-diffusing laminate, and an anisotropic light-reflecting laminate are provided which are excellent in both light transmittance and diffusivity. Also provided are a lighting equipment and a display device which employ any of the film and laminates and are excellent in light-diffusivity and brightness and in economy, etc. The anisotropic light-diffusing film is a film formed by melt-extruding a mixture of at least two thermoplastic resins incompatible with each other. The film has parallel light ray transmittance of 20-85%, haze of 10-80%, glossiness of 10-70%, and ratio of the vertical-direction diffusivity to the horizontal-direction diffusivity of transmitted light of 1.3-6.0. The anisotropic light-reflecting laminate comprises a light reflector and the anisotropic light-diffusing film laminated over at least one surface of the reflector.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: March 17, 2015
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Katsuaki Kuze, Kenji Kawai
  • Publication number: 20150062871
    Abstract: An optical plate and a method of manufacturing the same are provided where the optical plate can be patterned to counter-compensate for luminance hot spots of corresponding light sources. More specifically, there is provided an optical plate comprising a substrate, and a patterned optical processing layer which is disposed on the substrate, wherein the patterned optical processing layer comprises flat area portions located close to the substrate, a plurality of protruding patterns which are located on or between the flat area portions and have concave portions formed at respective ends thereof, and a plurality of light diffusing patterns which are located on the concave portions, respectively.
    Type: Application
    Filed: December 11, 2013
    Publication date: March 5, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Joong Hyun KIM, Tae Yong RYU, Seung Hwan CHUNG
  • Publication number: 20150062926
    Abstract: A system and method for controlling light shading and thermal insulation in a light transmissive structure is disclosed. An array of adjacently-positioned, inflatable first tubes is provided, each of the first tubes being inflatable to abut an inflated adjacent first tube. Each of an array of inflatable second tubes is nested within, and inflatable independent of one of the first tubes. Each of the second tubes is connected to one of the first tubes such that when not inflated, each of the second tubes is flattened within the one of the first tubes. When inflated, each of the second tubes abut an inflated adjacent second tube via first tubes. The first tubes are preferably clear, while the second tubes are made of a reflective material.
    Type: Application
    Filed: March 1, 2013
    Publication date: March 5, 2015
    Inventor: Jonathan David CHELF
  • Publication number: 20150055340
    Abstract: An LED light bulb includes a thermally conductive base and at least one LED assembly disposed on the base. The LED assembly includes at least one LED configured to emit light. A thermal optical diffuser defines an interior volume of the LED light bulb. The LED is arranged to emit light into the interior volume and through the thermal optical diffuser. The thermal optical diffuser extends from the base to a terminus on a light emitting side of the LED assembly. The thermal optical diffuser includes one or more openings. An array of optical elements is disposed within the interior volume and is configured to focus the emitted light toward the openings. The thermal optical diffuser and the array of optical elements are arranged to allow convective air flow between the interior volume of the thermal optical diffuser and ambient environment.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 26, 2015
    Inventors: Patrick Yasuo Maeda, Ashish Pattekar
  • Patent number: 8950884
    Abstract: A backlight is provided for a direct-view display. The backlight comprises a plurality of discrete light sources (11), such as light emitting diodes, spaced from a diffuser (5). The light sources are arranged as sets cooperating with a mirror structure (101), which surrounds the set to form a region. The regions substantially tessellate the area of the backlight. Each mirror structure (101) comprises a plurality of mirror segments which are curved and concave in cross-section perpendicular to the diffuser (5). The mirror segments extend from around the light sources (11) towards the diffuser (5). The edges of adjacent mirror segments of adjacent regions meet at a meeting line such that all of the meeting lines are at the diffuser (5) or between the diffuser (5) and the light sources (11).
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: February 10, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Oliver Andrew Charles Stevens, David James Montgomery
  • Patent number: 8944646
    Abstract: An effects wheel assembly for a light fixture, in particular a stage light fixture, suitable to generate a light beam, has a supporting device which rotates about a first axis; and an effects wheel having a hub, which extends about a second axis, and an effects portion, which extends about the hub and is suitable to generate optical effects when intercepting the light beam; the supporting device and the effects wheel being selectively connectable to each other by means of jaws elastically operated to clamp the effects wheel when the hub is inserted between the jaws.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: February 3, 2015
    Assignee: Clay Paky S.p.A.
    Inventor: Pasquale Quadri
  • Publication number: 20150016120
    Abstract: A lighting instrument consists of a frame that is formed by several moldings and connections, with a first scarf and second scarf placed around the upper fringe and the lower fringe of the frame, with a lagging plate and a light diffusion plate placed in the first scarf and second scarf respectively, forming a chamber along with the frame. The lagging plate is formed by more than one lagging plate unit placed lateral, with protrudes and concaves set on the left and right sides of the lagging plate units, and they can connect with other lagging plate units to meet the size of customer requirement. Also, each lagging plate unit has a circuit board with a lighting element installed on the surface facing the chamber.
    Type: Application
    Filed: July 15, 2013
    Publication date: January 15, 2015
    Inventors: Chung-I Chen, Feng-Jui Shen
  • Patent number: 8920001
    Abstract: A light emitting device includes: a light source that emits light; a reflective unit disposed around a perimeter of the light source and having a reflective surface; and a diffusion unit that is disposed between the light source and the reflective surface and is configured to reflect a partial amount of the light emitted from the light source and transmit another partial amount of the light emitted from the light source toward the reflective surface.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: December 30, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jong Jin Park
  • Patent number: 8919983
    Abstract: A wearable piece of jewelry is provided including a light transmissive pane and a lighting device. The light transmissive pane is located between a viewer and said lighting device. Further examples of the jewelry can include a frame to locate the light transmissive pane and a diffusion panel. The jewelry can also include a controller in electrical communication with the lighting device and a communication device in electrical connection/communication with the controller. Another example of the jewelry includes a solar cell in electrical connection/communication with the lighting device.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: December 30, 2014
    Assignee: Elizabethanne Murray
    Inventor: Elizabethanne Murray
  • Patent number: 8915625
    Abstract: A lighting device that comprises a light source unit, with light sources positioned upon a circuit substrate; an LCD panel illuminated by the light emitted from the light sources; a casing, and a diffusion member installed upon the casing. The circuit substrate is mounted so as to block the lower end aperture of the hollow portion. The diffusion member is mounted so as to block an upper end aperture of the hollow portion, which constitutes the opposite end of the hollow portion from the lower end aperture thereof. Radiation units are formed upon the casing to radiate heat caused by the light sources outside the casing.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: December 23, 2014
    Assignee: Nippon Seiki Co., Ltd.
    Inventor: Itsuhiro Miyamoto
  • Patent number: 8915623
    Abstract: A more versatile cover for a light bulb, such as a compact fluorescent lamp or light emitting diode, that is aesthetically pleasing, flexible, and requires no modifications to the bulb while also capable of fitting a multitude of bulb configurations and sizes. The cover may include a hollow and at least partially elastic body in a pre-formed shape having an inner surface and an outer surface, wherein the body is removable and frictionally secured to said bulb to form an envelope around the bulb. The body may also include a collar and a bulbous section, which extends from the collar. The collar is configured to engage the base of the light bulb and create a substantially airtight seal between the base and the body. The body is fabricated from a light pervious material, and any light transmitted by the cover is preferably substantially diffuse.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: December 23, 2014
    Assignee: St. Albert Innovations, LLC
    Inventor: Ryan Claudet
  • Publication number: 20140369029
    Abstract: A backlight module employing a diffusion plate is provided. The diffusion plate includes a main body and antireflection films formed on surfaces of the main body. The main body includes a light incident surface, and a light emitting surface opposite to the light incident surface. Each antireflection film has a number of antireflection film layers. A thickness of each antireflection film layer is less than a wavelength of visible light.
    Type: Application
    Filed: June 17, 2014
    Publication date: December 18, 2014
    Inventor: CHEN-HAN LIN
  • Patent number: 8905562
    Abstract: The present invention is directed to a light that can be used to illuminate a subject for a photographic or video capture. The light is designed to be easily transportable and to provide a bright but diffused illumination of the subject.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: December 9, 2014
    Assignee: Jerry Ghionis Photography, Inc.
    Inventor: Jerry Ghionis
  • Patent number: 8888334
    Abstract: The invention relates to an arrangement for generating light effects, particularly for decorative purposes, having a light source (10) and a textile web material (12) that can be illuminated by through light from the light source (10) toward a visible side (16) or by incident light. According to the invention, the textile web material (12) comprises a two-layer weave structure made of warp threads (18) forming a warp thread layer (26) and weft threads (20) forming a weft thread layer (24) contacting the warp thread layer (26) on one side.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: November 18, 2014
    Assignee: Ettlin Aktiengesellschaft
    Inventor: Frauke Susanne Hänsch
  • Publication number: 20140334160
    Abstract: A light extraction substrate for an organic light-emitting device (OLED) which can improve the light extraction efficiency of an OLED, a method of fabricating the same and an OLED including the same. The light extraction substrate is disposed on one surface of an OLED through which light generated from the OLED is emitted outward. The light extraction substrate includes a base substrate, a light extraction layer disposed on the base substrate, and a number of crystallization particles disposed inside the light extraction layer. The light extraction layer is made of a glass frit that has a composition including ZnO, B2O3, SiO2, MgO and Bi2O3.
    Type: Application
    Filed: May 8, 2014
    Publication date: November 13, 2014
    Inventors: Kiyeon Lee, Kyungmin Yoon, Youngseok Lee, Jaeho Lee
  • Patent number: 8878423
    Abstract: Disclosed is a light-emitting device, including an LED light source and a light diffusion element. The light diffusion element, covering at least a part of the LED light source, is composed of a first polymer, a second polymer, or a blend of them. The first polymer has a larger crystal diameter than that of the second polymer. The first polymer is made of polypropylene or ethylene-propylene copolymer. The second polymer is made of polyethylene, polypropylene, or ethylene-propylene copolymer. A blend of certain ratios of the first and second polymer gives rise of an excellent material that has improved light diffusion. This material can be widely adopted to current light fixtures for its evenly distributed lighting and great brightness.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: November 4, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Pei-Ying Chang, Shi-Ing Huang, Tien-Fu Huang, Chen-Dao Shiao
  • Patent number: 8876339
    Abstract: The invention relates to a luminaire (1) comprising a housing (2) having at least one side wall part (3) and a bottom wall part (5), a light source (7) being positioned in the housing (2), and a curved, optically transparent sheet (10) having a plurality of elongated linear prism structures with right top angles (16) on its concave surface. Said surface faces away from the light source (7). The invented luminaires (1) show reduced glare. They can be used with great advantage in office lighting and house lighting.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: November 4, 2014
    Assignee: Koninklijke Philips N.V.
    Inventors: Erik Paul Boonekamp, Antonius Petrus Marinus Dingemans, Michel Cornelis Josephus Marie Vissenberg
  • Publication number: 20140321162
    Abstract: The methods, devices, and/or compositions described herein can used to reduce variations, such as spatial and temporal variations, in luminance intensity. Luminance variation is reduced by varying some aspect of transmittance with respect to the intensity of light.
    Type: Application
    Filed: October 26, 2012
    Publication date: October 30, 2014
    Applicant: Empire Technology Development LLC
    Inventors: Motoyuki Toki, Sayoko Tanaka, Masumi Honda
  • Publication number: 20140313695
    Abstract: A light diffuser for a backlight module includes a main body, a diffusing micro-structure, and a micro-prism structure. The main body includes a light incident surface and a light emergent surface opposite to the light incident surface, the diffusing micro-structure is formed on the light incident surface, and the micro-prism structure is formed on the light emergent surface. The diffusing micro-structure includes a number of protrusions. The protrusions are substantially semi-cylindrical-shaped, and the prisms are substantially parallel to each other. The micro-prism structure includes a number of prisms, and the prisms are substantially parallel to each other.
    Type: Application
    Filed: April 15, 2014
    Publication date: October 23, 2014
    Inventor: Li-Ying WANG HE
  • Publication number: 20140307418
    Abstract: The invention relates to a diffusing plate structure and a backlight module. The diffusing plate structure is corresponding to a light source and comprises an incidence surface, an emergence surface, a side surface, and a light diffusing structure. The incidence surface is opposite to the emergence surface. The light diffusing structure is disposed on at least one of the incidence surface and the emergence surface, and includes a plurality of unit blocks distributed evenly. Every unit block includes a first micro diffusing structure or a second micro diffusing structure. The first micro diffusing structure includes a first transparent area for transmitting light and a first opaque area for reflecting and diffusing light. The first opaque area surrounds the first transparent area. The second micro diffusing structure includes a second transparent area for transmitting light and a second opaque area for reflecting and diffusing light. The second transparent area surrounds the second opaque area.
    Type: Application
    Filed: January 28, 2014
    Publication date: October 16, 2014
    Applicant: TPV Display Technology (Xiamen) Co., Ltd.
    Inventors: Junyi Zheng, Po-lem Lin, Chih-Ming Wang, Her-Dong Shih
  • Patent number: 8854574
    Abstract: A film-shaped lightguide plate unit enables reductions in thickness and weight. The film-shaped lightguide plate unit (7) has a film-shaped lightguide plate (6) and a support frame (8) made of a film material to support at least the outer peripheral edge of the film-shaped lightguide plate (6). Optical sheets including the film-shaped lightguide plate, a diffusing sheet, a prism sheet, etc. are disposed inside the support frame.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: October 7, 2014
    Assignee: Citizens Electronics Co., Ltd.
    Inventors: Yoshitake Horiuchi, Tatsuro Yamada
  • Publication number: 20140268657
    Abstract: Exemplary embodiments disclosed herein provide a rigid LCD assembly including a LCD having a perimeter, a first layer of tape around the perimeter of the LCD, and a diffusing plate attached to the later of tape so as to create a cavity defined by the space between the LCD, tape, and diffusing plate. One or more optical films may be inserted into the cavity, and while constricted in directions perpendicular to the films, the films may be free to move slightly in the directions parallel to the films. A U-shaped backlight wall may attach to the diffusing plate and would contain a backlight. An optional thermal plate can be attached to the backlight wall, which can be used with a second thermal plate to define a channel for accepting cooling air.
    Type: Application
    Filed: February 27, 2014
    Publication date: September 18, 2014
    Inventors: William DUNN, Michael LeCave
  • Patent number: 8833967
    Abstract: An illumination assembly for a scanner comprising a light source, a primary reflector and a secondary reflector. The primary reflector comprises a lower member and upper member spaced away from the lower member. The upper member has a heatsink for dissipating the heat of the light source. The light source is positioned between the lower and upper members and is attached to the upper member allowing for decreased vertical height for the illumination assembly.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: September 16, 2014
    Assignee: Lexmark International, Inc.
    Inventors: Chengwu Cui, Joshua Tyler Strow
  • Publication number: 20140254160
    Abstract: A diffuser and an optical system is provided in the present disclosure. The diffuser is configured to enhance the intensity of a light generated from a light source. The diffuser includes a transparent substrate, a transparent metalized layer, a bonding layer, and a plurality of light-penetrating microsphere balls. The transparent substrate has a first surface and a second surface. The transparent metalized layer is disposed on the first surface of the transparent substrate. The bonding layer is disposed on the transparent metalized layer. The plurality of light-penetrating microsphere balls are disposed on the bonding layer. The first surface is opposite to the second surface, and the light enters the diffuser from the second surface of the transparent substrate.
    Type: Application
    Filed: March 10, 2014
    Publication date: September 11, 2014
    Inventor: Percy VANLUCHENE
  • Publication number: 20140233243
    Abstract: The present invention therefore provides for the use of a light-diffusing polycarbonate sheet based on a composition comprising A) 99.9 to 80% by weight of polycarbonate and B) 0.1 to 20% by weight of diffusing pigment selected from at least one from the group of the silicone resins and the acrylate resins as a light cover, preferably in LED light applications.
    Type: Application
    Filed: September 27, 2012
    Publication date: August 21, 2014
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Wojciech Kazimierz Cieplik, Emmanuel Bral
  • Publication number: 20140226300
    Abstract: Some embodiments disclosed herein relate to a case for a mobile electronic device having an onboard camera lens. The case may be removably attachable by a user to the mobile electronic device or to a second case that is attached to the mobile electronic device. The case may provide components to improve or enhance photography functionality of the mobile electronic device, such as flash components or other illumination elements, diffuser components, auxiliary power sources, mounting regions for additional accessories, and the like.
    Type: Application
    Filed: February 14, 2014
    Publication date: August 14, 2014
    Applicant: olloclip, LLC
    Inventors: Patrick D. O'Neill, Chong Pak, Ryan Nguyen
  • Publication number: 20140226307
    Abstract: A light emitting apparatus comprises: an LED-based light source; a spherical, spheroidal, or toroidal diffuser generating a Lambertian light intensity distribution output at any point on the diffuser surface responsive to illumination inside the diffuser; and a base including a base connector. The LED based light source, the diffuser, and the base are secured together as a unitary LED lamp installable in a lighting socket by connecting the base connector with the lighting socket. The diffuser is shaped and arranged respective to the LED based light source in the unitary LED lamp to conform with an isolux surface of the LED based light source. The base is operatively connected with the LED based light source in the unitary LED lamp to electrically power the LED based light source using electrical power received at the base connector.
    Type: Application
    Filed: February 18, 2014
    Publication date: August 14, 2014
    Inventors: Gary R. Allen, David C. Dudik, Boris Kolodin, Joshua I. Rintamaki, Bruce R. Roberts
  • Patent number: 8804070
    Abstract: A liquid crystal display device includes a liquid crystal display panel and a backlight including a diffusion medium located between lamps and a diffusion plate to diffuse light. The diffusion medium includes an external band of square type diffusion medium and a plurality of ribs formed of the diffusion medium connected to both sides of the external band of square type diffusion medium. The ribs include a plurality of first ribs which are directly located over the lamps, a plurality of second ribs which are located between the first ribs, and a third rib which connects each of the ribs to each other.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: August 12, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Jeong Min Moon, Eun Ju Kim
  • Publication number: 20140218940
    Abstract: A light emitting device comprises at least one solid-state light source (LED) operable to generate excitation light and a wavelength conversion component located remotely to the at least one source and operable to convert at least a portion of the excitation light to light of a different wavelength. The wavelength conversion component comprises a light transmissive substrate having a wavelength conversion layer comprising particles of at least one photoluminescence material and a light diffusing layer comprising particles of a light diffractive material. This approach of using the light diffusing layer in combination with the wavelength conversion layer solves the problem of variations or non-uniformities in the color of emitted light with emission angle. In addition, the color appearance of the lighting apparatus in its OFF state can be improved by implementing the light diffusing layer in combination with the wavelength conversion layer.
    Type: Application
    Filed: December 9, 2013
    Publication date: August 7, 2014
    Applicant: Intematix Corporation
    Inventors: Bing Dai, Xianglong Yuan, Gang Wang, Charles Edwards
  • Patent number: 8798415
    Abstract: A light diffuser panel for coupling to an optical element, includes a substrate with a first surface that is diffusive to a plurality of wavelengths of light and a second surface, wherein the substrate comprises a material with a refractive index nin that is greater than a refractive index nd of a medium outside of the first surface, ?min is a minimum wavelength of the plurality of wavelengths of light, ?max is a maximum wavelength of the plurality of wavelengths of light, the first surface is a diffractive grating surface with a grating period P, the grating period P is greater than ?max/(nd+nin), and P is smaller than ?min.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: August 5, 2014
    Assignee: Panasonic Corporation
    Inventor: Yosuke Mizuyama
  • Publication number: 20140211483
    Abstract: Provided is an optical sheet, the optical sheet comprising: a base film; and a plurality of constructions which are irregularly arranged on one surface of the base film so that an arrangement axis of one construction is out of an arrangement axis of another construction adjacent to one side surface of the base film within a range of 1 to 50% of a length or a width of the another construction. Thus, a protective film and a prism type sheet are removed, and the weakness and workability of processes are improved, thereby being capable of reducing a unit price. Furthermore, a shielding force which is the most weakness of the prism type sheet can be improved.
    Type: Application
    Filed: August 31, 2012
    Publication date: July 31, 2014
    Applicant: LG INNOTEK CO., LTD.
    Inventor: Su Hyeon Cho