Diffusing Type Patents (Class 362/355)
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Patent number: 8092033Abstract: An illumination assist device used for an electronic device having a flash lamp includes an optical plate and a cover. The optical plate is positioned between the flash lamp and the cover. The cover includes a light transmission board and a plurality of reflection sidewalls extending from a periphery of the light transmission board. The optical plate is surrounded by the plurality of reflection sidewalls. The invention also provides an electronic device using the illumination assist device.Type: GrantFiled: May 11, 2009Date of Patent: January 10, 2012Assignee: Chi Mei Communication Systems, Inc.Inventor: Po-Chao Lao
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Patent number: 8062730Abstract: A light diffusion film includes a thermoplastic resin, a surface of the light diffusion film has a roughness (Ra) of about 0.5 to about 3 ?m and a height distribution index (HDI) of about 3 to about 8 ?m, and the light diffusion film has a retardation of not more than about 25 nm.Type: GrantFiled: December 4, 2008Date of Patent: November 22, 2011Assignee: Cheil Industries, Inc.Inventors: Jin Woo Lee, Chang Gyu Im, Bang Duk Kim, Sun Hong Park, Sei Jin Oh
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Patent number: 8059339Abstract: A light diffusing sheet brightens frontal direction illumination and resists curl without requiring a complicated design. This light diffusing sheet includes a support and a light diffusing layer provided on the support. The light diffusing layer is formed from at least acrylic resin particles, a styrene acrylic copolymer resin binder, and an acrylic resin binder having a glass transition temperature of 30° C. or lower. Weight ratio of the styrene acrylic copolymer resin binder to the acrylic resin binder is preferably in the range of 1:4 to 4:1.Type: GrantFiled: January 5, 2007Date of Patent: November 15, 2011Assignee: Kimoto Co., Ltd.Inventor: Yasumaro Toshima
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Patent number: 8052294Abstract: A back light unit for a liquid crystal display device for improving uniformity of the light and dispensing with optical sheets. The back light unit includes a light source having a holographic pattern formed on a surface thereof opposite the display device which is to display a picture, and a reflective plate under the light source.Type: GrantFiled: September 1, 2010Date of Patent: November 8, 2011Assignee: LG Display Co., Ltd.Inventors: Man Hoan Lee, Sung Keun Lee
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Publication number: 20110235340Abstract: The present invention relates to a light guide. The light guide includes at least one incident portion, a light-emitting surface, a diffusing portion and two lateral portions. The incident portion is disposed at at least one end of the light guide, and used to receive at least one light source. The light-emitting surface is used to guide light. The diffusing portion is disposed opposite the light-emitting surface, and has a plurality of zigzag structures used to guide light to the light-emitting surface. Two lateral portions are connected between the light-emitting surface and the diffusing portion respectively, and a plurality of surfaces of the lateral portions are part of a camber of a long border of an ellipse. The incident portion according to the present invention may further have an accommodating hole and a free form; the accommodating hole is used to accommodate the light source, and the free form is disposed at the periphery of the incident portion.Type: ApplicationFiled: August 6, 2010Publication date: September 29, 2011Applicant: TYC BROTHER INDUSTRIAL CO., LTD.Inventor: Ming-Jhih Shih
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Publication number: 20110234942Abstract: One embodiment of the present invention is an optical component, including a first main surface and a second main surface wherein a plurality of two-dimensionally arranged first convex parts are arranged on the first main surface, each of the first convex parts being independent and an aspherical micro lens having an approximate semispherical shape or an approximate elliptic semispherical shape, or having a rounded tip, and a plurality of second convex parts of the height of which is lower than the height of the plurality of the first convex parts, the second convex parts comprising a lens extending in a one dimensional direction, the lens being arranged in one or two directions.Type: ApplicationFiled: June 3, 2011Publication date: September 29, 2011Applicant: Toppan Printing Co., Ltd.Inventors: Tomohiro NAKAGOME, Yuki IGARASHI, Kazuyoshi EBINA, Hidenori ECHIZEN
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Patent number: 8023067Abstract: A liquid crystal display device that reduces manufacturing cost, contributes to a thin profile, and generates uniform brightness, and a fabricating method thereof are disclosed. In the liquid crystal display device, a liquid crystal display panel is prepared. A backlight includes a plurality of lamps, a diffusion plate which is located on the lamps, and an intermediate diffusion medium located between the lamps and the diffusion plate to diffuse light from the lamps, and irradiates light to the liquid crystal display panel. Furthermore, in the method of fabricating the liquid crystal display device, a diffusion material is molded using a mold to form an intermediate diffusion medium that includes a plurality of ribs connected to an external band of square type and both sides of the external band of square type, respectively. The intermediate diffusion medium is located between lamps and a diffusion plate.Type: GrantFiled: November 26, 2007Date of Patent: September 20, 2011Assignee: LG Display Co., Ltd.Inventors: Jeong Min Moon, Eun Ju Kim
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Publication number: 20110222269Abstract: A lighting apparatus for a gaming machine cabinet comprising: a spot light source which emits light relative to a central emission axis; and a translucent diffuser spaced from the spot light source, the diffuser comprising an inner portion located so as to intercept light emitted along the emission axis and an outer portion spaced from the emission axis, the inner and outer portions arranged such that the diffuser prevents transmission of more light in the region of the inner portion than in the region of the outer portion.Type: ApplicationFiled: May 23, 2011Publication date: September 15, 2011Applicant: Aristocrat Technologies Australia PTY LimitedInventors: John Feng Shi Hwang, Noel Voloh
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Publication number: 20110205745Abstract: The invention relates to a light guide element for a lighting device, wherein the light guide element is elongated in the direction of a main axis (A) and comprises a light coupling surface extending transversely to the longitudinal direction and a light emission surface radiating transversely to the longitudinal direction, and two or more light guides stacked on top of one another, wherein a partial region of the wall of the individual light guides extending in the longitudinal direction is structured and/or blackened.Type: ApplicationFiled: May 3, 2011Publication date: August 25, 2011Inventors: Günther Conzatti, Harald Weingärtner, Paul Swarovski
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Patent number: 7980734Abstract: The present invention is a bulk light diffuser material based upon a hydrogenated block copolymer, but including a particulate light diffusing component. The material may be in the form of a film, a sheet or a molded article. When present as a sheet having a thickness of 2 millimeters, the sheet has a percent total transmittance of at least 50% and a haze of at least 70%, measured according to the American Society for Testing and Materials (ASTM) standard D 1003.Type: GrantFiled: September 14, 2007Date of Patent: July 19, 2011Assignee: Dow Global Technologies LLCInventors: Stephen F. Hahn, Kenneth W. Williams, Phillip L. Wing, Weijun Zhou
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Patent number: 7976207Abstract: Provided are a backlight assembly and a display device having the same. The backlight assembly includes a light source unit which generates light; and a light guide plate which comprises an incident light surface through which the light from the light source unit enters the light guide plate, an upper surface joined to the incident light surface and that includes a prism pattern, and a lower surface opposing the upper surface and formed with a plurality of concave portions. A diffusing pattern is formed on one of the upper surface and the lower surface.Type: GrantFiled: November 7, 2008Date of Patent: July 12, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Hyoung-Joo Kim, Sung-Kyu Shim, Seung-In Baek, Jae-Joong Kwon, In-Sun Hwang, Sung-Wook Kang
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Publication number: 20110157519Abstract: Disclosed is a light source apparatus including a light guide plate, a plurality of optical sheets and a frame, wherein one of the plurality of optical sheets is a prism sheet, the prism sheet having (i) a plurality of prisms formed on one surface thereof and (ii) one or more projecting pieces which are integrally formed with the prism sheet, the one or more projecting pieces engage to the frame, at least one of the one or more projecting pieces is a dark part suppressing projecting piece, sides making a pair of sides adjoining the dark part suppressing projecting piece are dark part suppressing sides, a first angle formed by the pair of dark part suppressing sides is equal to or smaller than a dark part suppressing angle, and second angles making a pair of angles formed with a straight line and each of sides making a pair of dark part suppressing sides are equal to or smaller than half of the dark part suppressing angle, the straight line (i) passing through a region formed between the pair of dark part suppType: ApplicationFiled: December 28, 2010Publication date: June 30, 2011Applicant: CASIO COMPUTER CO., LTD.Inventor: Katsuhiko YUSA
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Publication number: 20110157867Abstract: A diffusion plate having microstructures with two lengthy and slant faces and its relevant backlight module as well as optical device includes an optical base and a diffusion plate with pluralities of microstructures; wherein, the microstructures on the optical base are located by different allocation, and an angle is defined by the cooperation of two longitude and slant faces of each microstructure. The above arrangements substantially impinge on controlling the light return and transmission of the backlight module or the optical device including a brightness enhancement film, a light source, and a reflecting plate disposed thereon, thereby increasing the uniformity of backlight through the optical reflection and refraction.Type: ApplicationFiled: December 28, 2009Publication date: June 30, 2011Inventors: Chi-Feng LIN, Yu-Bin Fang, Po-Hua Yang
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Publication number: 20110141743Abstract: 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: ApplicationFiled: December 14, 2009Publication date: June 16, 2011Applicant: Koninklijke Philips Electronics N.V.Inventor: William C. Fabbri
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Publication number: 20110122599Abstract: A composite diffuser structure includes a transparent layer having a light-entering surface and a light-emitting surface, a lenticular structure having a plurality of lenticular lens formed on the light-emitting surface, and a plurality of refection structures located on the light-entering surface. Each of the lenticular lenses has a first width. There is an opening between two adjacent reflection structures. Each of the openings has a second width. Thereby, the light beam enters into the transparent layer via the opening to increase the light efficiency. By using the diffuser layer located above the lenticular structure, the view angle can be adjusted.Type: ApplicationFiled: November 20, 2009Publication date: May 26, 2011Inventors: Cheng Lin, Jen-Huai Chang, Jyh Horng Wang
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Publication number: 20110110070Abstract: The present invention relates to a reflecting cap for enhancing an illuminance of an illumination, which can enhancing the illuminance, protect skin by UV blocking, prevent dazzling, used with being inserted on lamp of various existing illuminations and adjust an irradiation angle of the light freely. To this end, the present invention provides a reflecting cap for enhancing an illuminance of an illumination, which includes a sheet having a shape that is inserted on a lamp of an illumination so as to enhance an illuminance of the illumination. In accordance with the present invention, an illuminance is increased and an economic effect can thus be expected. Further, it is possible to adjust an irradiation angle of the illumination light by adjusting an angle of the sheet inserted on the lamp of the illumination.Type: ApplicationFiled: November 6, 2009Publication date: May 12, 2011Inventors: Henry Hyung Kwang KIM, Soon Hwang HONG
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Publication number: 20110103074Abstract: Described are an improved automated luminaire 12 and luminaire systems 10 employing an improved image diffusion system 27.Type: ApplicationFiled: September 11, 2010Publication date: May 5, 2011Inventor: Pavel JURIK
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Publication number: 20110088299Abstract: An object of the present invention is to provide a decorative illumination signboard capable of effectively downwardly emitting light while suppressing an upward emission of light with a simple configuration and a plastic sheet used in the decorative illumination signboard. The object can be accomplished by a plastic sheet having optical transparency which includes an exit surface and an incident surface on which a plurality of prism lines having a flat and smooth surface are arranged to be aligned. A shape of the prism in a cross-section perpendicular to a longitudinal direction of the prism line is formed by a side A on a lower side at an angle of ? degrees to a normal line of the exit surface and a side B on an upper side at an angle of ? degrees to the normal line of the exit surface and ?<?, and 40 degrees???80 degrees.Type: ApplicationFiled: June 4, 2009Publication date: April 21, 2011Applicant: KURARAY CO., LTD.Inventors: Osamu Yoshimura, Tatsuya Ueda
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Publication number: 20110085350Abstract: A light guide plate includes a transparent substrate and a plurality of micro structures. The transparent substrate has a first surface and a second surface opposite the first surface, and the micro structures are disposed at least on the first surface of the transparent substrate and are separate from each other. Each of the micro structures includes a first coating layer and a second coating layer. The first coating layer is formed on the first surface and includes an adhesive material. The second coating layer is formed on at least a part of the first coating layer and includes a light-diffusing material.Type: ApplicationFiled: July 9, 2010Publication date: April 14, 2011Inventors: Liang-Kang CHANG, Hao-Jan Kuo, Ming-Dah Liu
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Patent number: 7911699Abstract: A diffuser is provided in an illumination system, where the diffuser is capable of blocking significant amounts of ultraviolet (UV) radiation. In certain example embodiments of this invention, the diffuser includes a glass substrate which supports a UV coating(s) that blocks significant amounts of UV radiation thereby reducing the amount of UV radiation which can makes its way through the diffuser. In certain example embodiments, the coating may including particulate so that the coating may both diffuse visible light and perform UV blocking.Type: GrantFiled: December 22, 2005Date of Patent: March 22, 2011Assignee: Guardian Industries Corp.Inventors: Zhong Ming Wang, Pramod K. Sharma, Desaraju V. Varaprasad, Thomas J. Taylor
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Publication number: 20110051044Abstract: A light quantity control member includes a light diffusion part formed by light diffusion members for diffusing light from a LED. The light diffusion part includes a first rectangular area positioned at the center of light flux from the LED and second rectangular areas positioned around the first rectangular area. The first rectangular area has an occupied area of the light diffusion members larger than any other second rectangular areas. If respective distances between a first center of the first rectangular area and respective second centers of the second rectangular areas are equal to each other, the occupied areas of the diffusion members of the second diffusion areas become equal to each other. The longer the distance between the first center of the first rectangular area and the second center of the second rectangular area gets, the smaller the occupied area of the light diffusion members of the second rectangular area becomes.Type: ApplicationFiled: September 2, 2010Publication date: March 3, 2011Applicant: VICTOR COMPANY OF JAPAN, LIMITEDInventor: Masaru SEGAWA
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Publication number: 20110044061Abstract: Light control devices implemented with diffusers exhibiting controllable diffusion characteristics provide anisotropic luminous intensity distributions and glare control at high viewing angles while maintaining high luminaire efficiency or daylight utilization.Type: ApplicationFiled: November 2, 2010Publication date: February 24, 2011Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Scott Santoro, Melissa Crenshaw, Ian Ashdown
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Patent number: 7891828Abstract: An electronic device includes a housing and a touch sensor mounted in the housing. The touch sensor further includes a translucent panel provided in a part of the housing, a printed circuit board which senses a touch on the translucent panel by a user, a light source mounted to the printed circuit board, which irradiates light towards the translucent panel, and a diffusion sheet provided between the translucent panel and the light source, which diffuses the light irradiated from the light source. The diffusion sheet further includes a first region formed transparent to directly transmit the light, and a second region frosted to diffuse the light towards an outer peripheral portion of the translucent panel. The second region is provided at a position corresponding to the light source, and the first region is provided to surround the second region.Type: GrantFiled: January 22, 2009Date of Patent: February 22, 2011Assignee: Kabushiki Kaisha ToshibaInventor: Toshikatsu Nakamura
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Patent number: 7871173Abstract: A lighting device. The lighting device includes a base portion, a diffuser portion having a wall defining an inner cavity, wherein the wall includes a plurality of colors, the plurality of colors defining a color pattern, and a light source for illuminating the diffuser portion.Type: GrantFiled: January 22, 2008Date of Patent: January 18, 2011Assignee: Lava Lite, LLCInventors: Yan X. Lin, Yao Z. Tan, Thomas M. Spain
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Patent number: 7862199Abstract: The invention concerns a luminaire having a housing, which at the emission side of the luminaire has a housing opening, having, situated in the housing, connection means for at least one lamp which define the position thereof in the housing, having a light guiding element which is so positioned that, in the main emission direction, it is located in front of the lamp to be used, and having at least one diffuser arranged at the side neighbouring the light guiding element, which has a shaping projecting beyond the edge of the housing, having a flank rising towards the light guiding element. In order to improve the light guiding and/or light emission of the diffuser, the shaping has further a flank falling towards the light guiding element.Type: GrantFiled: January 31, 2007Date of Patent: January 4, 2011Assignee: Zumtobel Lighting GmbHInventors: Gerald Ladstätter, Anton Mündle
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Patent number: 7864266Abstract: A diffuser plate includes a first optical sheet having a rear surface configured to receive light from a light source and having a front surface configured to provide light to a second optical sheet, the first optical sheet having a refractive part that includes a plurality of optical members at a surface of the first optical sheet, and a second optical sheet disposed in front of the first optical sheet, the second optical sheet including a rear surface configured to receive light from the first optical sheet, a front surface configured to emit light, and light-scattering beads within the first optical sheet.Type: GrantFiled: October 31, 2008Date of Patent: January 4, 2011Assignee: Cheil Industries, Inc.Inventors: Kyung Joon Lee, Seung Man Choi, Man Suk Kim
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Publication number: 20100328575Abstract: A diffusion plate includes a base body including a plurality of convex portions formed on a principal surface of the base body. An angle of inclination of the convex portions at a base of the convex portions ranges from 38° to 42°. Also, a ratio R/Cp between a curvature R of a summit of the convex portions and a pitch Cp between adjacent convex portions is 0.0014<R/Cp<0.43.Type: ApplicationFiled: June 17, 2010Publication date: December 30, 2010Applicant: SONY CORPORATIONInventors: Shogo Shinkai, Eiji Ohta, Yasuyuki Kudo, Tatsuya Harima, Saori Hayashi
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Patent number: 7859611Abstract: A diffuser prism sheet includes a transparent base film having a first surface and a second surface, a light refractor at the first surface of the base film, the light refractor including a plurality of unit prisms having a major axis extending in a first direction and having a predetermined cross sectional shape that defines valleys between adjacent unit prisms, and light diffusers including amorphous polygonal bosses in the valleys between adjacent unit prisms.Type: GrantFiled: June 19, 2008Date of Patent: December 28, 2010Assignee: Cheil Industries, Inc.Inventors: Seok Hoon Jang, Man Suk Kim, Jun Hyeak Choi, Ju Yeol Choi
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Patent number: 7857471Abstract: The optical sheet includes a first lens sheet having a plurality of first three-dimensional structures arrayed to extend to one surface thereof, and a reflective polarizer sheet for transmitting either one of p-polarization component and s-polarization component of incident light and reflecting the other of p-polarization component and s-polarization component of the incident light. Head portions of the first three-dimensional structures are bonded to the reflective polarizer sheet.Type: GrantFiled: December 3, 2007Date of Patent: December 28, 2010Assignee: Sony CorporationInventors: Eiji Ohta, Shigehiro Yamakita, Makoto Aoki, Toru Abiko
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Publication number: 20100321923Abstract: A diffusion plate includes a base having a top surface and a bottom surface and a plurality of parallel convex ridges integrally formed on the top surface of the base while extending in one direction. Each convex ridge has a cross section shaped as a portion of an ellipse. The display apparatus includes a display panel, a light source and the diffusion plate.Type: ApplicationFiled: March 8, 2010Publication date: December 23, 2010Inventors: Jung-Wook Paek, Myung-Woon Lee, Jinsung Choi
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Publication number: 20100323751Abstract: A light guide sheet is adapted to be used with a light emitter. The light guide sheet includes a light-transmissive base, a light inlet section having bonded to a lower surface of the base, and an illumination section for diffusing the light entering into the base. The light inlet section has an upper surface and an edge surface connected to the upper surface. The upper surface of the light inlet section is bonded to the lower surface of the base. Light emitted from the light emitter enters into the edge surface the light inlet section. The light inlet section causes the entering light to enter into the base. The light inlet section has a refractive index lower than a refractive index of the base. The light guide sheet provides a movable contact assembly capable of reliably illumination inexpensively.Type: ApplicationFiled: June 4, 2010Publication date: December 23, 2010Applicant: PANASONIC CORPORATIONInventors: NAOKI TATEHATA, YOUSUKE CHIKAHISA
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Publication number: 20100315821Abstract: The invention relates to a diffuser attachment (1) for a portable lamp, in particular helmet lamp (9), comprising a transparent or translucent housing (2) whose first end (3) is closed by a cap (8) and has a reflector element (7) in the form of a diffuser mirror and whose second end forms a base region (6) which is adapted to the outer shape of the lamp (9) in order to permit reversible fixing of the diffuser attachment to the lamp, the reflector element (7) of the light source (13) being opposite and the distance between reflector element (7) and light source (13) being at least 1 cm, in particular 1 to 20 cm and typically 5 to 10 cm when the diffuser attachment is fixed. For removable mounting, the diffuser attachment can be connected to the lamp via a fast-action coupling mechanism, in particular via a snap, clamp, screw or bayonet coupling.Type: ApplicationFiled: May 14, 2010Publication date: December 16, 2010Inventors: Juerg Weber, Matthias Holzinger, Sem Hediger
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Publication number: 20100302788Abstract: An LED lamp-set includes a lamp, which is a round-shape cap and an interior of which contains an LED holding slot to emplace an LED. A bottom of the lamp is connected and fixed with a lamp holder which can be made by a metallic material to dissipate heat generated by the LED. The lamp holder is provided with locking holes to lock the lamp and the LED on the lamp holder through locking elements. An outer rim of the lamp holder can be provided with lamp holder fixing holes to fix the lamp-set in a usage condition. A top end or an outer rim of the lamp can be provided additionally with a lamp shade to further improve versatility of application.Type: ApplicationFiled: May 28, 2009Publication date: December 2, 2010Inventor: Chia-Cheng CHANG
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Patent number: 7837361Abstract: Light control devices (76, 80, 82) implemented with diffusers exhibiting controllable diffusion characteristics provide anisotropic luminous intensity distributions and glare control at high viewing angles while maintaining high luminaire efficiency or daylight utilization.Type: GrantFiled: November 17, 2006Date of Patent: November 23, 2010Assignee: Ledalite Architectural ProductsInventors: Scott Santoro, Melissa Crenshaw, Ian Ashdown
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Patent number: 7824090Abstract: An optical sheet and a backlight unit using the same are disclosed, in which deviation of a viewing angle is minimized to improve picture quality. The optical sheet includes a diffusion sheet provided with a plurality of diffusion patterns diffusing incident light in at least two directions to allow the incident light to have different strengths.Type: GrantFiled: November 25, 2009Date of Patent: November 2, 2010Assignee: LG Display Co., Ltd.Inventors: Man Hoan Lee, Won Taek Moon, Jae Hyun Park
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Patent number: 7824079Abstract: The invention provides a diffuser for a portable light tower that has an envelope of fire resistant material designed to diffuse light situated on a frame forming a generally spherical structure that can be opened and closed by use of a pulley and cable system.Type: GrantFiled: December 8, 2008Date of Patent: November 2, 2010Assignee: Multiquip, Inc.Inventors: Jonathan Cuppett, Mary Hidalgo
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Publication number: 20100271840Abstract: An optical sheet is structured to have a translucent substrate 12, an optical element 16 provided on one surface S1 of the translucent substrate 12, on which a plurality of unit prisms 14 or unit lenses are arranged, and a light diffusion layer provided between the one surface S1 and the optical element 16 and/or on another surface S2 of the translucent substrate 12, and at least one of the light diffusion layer 18 includes gap parts 22 as a light diffusion element. At this time, the gap parts 22 is preferably in an approximately oval shape oriented in a uniaxial direction in plan view.Type: ApplicationFiled: December 28, 2007Publication date: October 28, 2010Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Satoru Hamada, Hiroshi Yamamoto, Junichi Sawanobori
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Patent number: 7802905Abstract: The present invention provides a light diffuser plate, the surface of which is less likely to be scratched, capable of laminating a film base material (3) with a high lamination strength. The light diffuser plate (1) of the present invention includes a transparent material and a light diffusing agent dispersed in the transparent material, wherein one or both surfaces are rough surfaces (1a) having a ten-point average roughness (Rz) of 20 to 40 ?m. A film-laminated light diffuser plate (4) can be obtained by laminating an adhesive film (5) comprising the film base material (3) and an adhesive layer (2) formed on at least one surface of the film base material on the rough surface.Type: GrantFiled: December 4, 2007Date of Patent: September 28, 2010Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroko Kanaya, Akiyoshi Kanemitsu
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Publication number: 20100238655Abstract: The present invention provides various embodiments for apparatuses and methods of manufacturing low profile housings for electronic and/or optoelectronic devices. Some embodiments provide low profile housings with a hollow casing comprising a first surface, second surface, and at least one lateral side surface. The housing is substantially light-diffusive. At least one cap is provided for sealing an end of the casing, with the at least one cap being sized to account for variations in the casing. At least one light emitting device, such as an LED, may be mounted within the casing. A mounting means may be included for mounting the housing. In another embodiment, a low profile housing with a first casing and second casing surrounding a majority of the first casing may be provided. At least one light emitting device, such as a double-sided printed circuit board with a plurality of LEDs, may be provided in the first casing. One or more end caps may be provided for sealing both the first and second casings.Type: ApplicationFiled: May 11, 2009Publication date: September 23, 2010Inventors: Thomas C. Sloan, Bruce Quaal
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Patent number: 7800304Abstract: A light source having a lead frame, a body, and a plurality of dies, each die having an LED thereon is disclosed. The body includes a top surface, a bottom surface and a plurality of side surfaces. The lead frame includes first, second, and third sections, the first section includes a die mounting area having a first protrusion that passes through the body and terminates in a pad on the bottom surface. The second and third sections each include a protrusion that is bent to form first and second leads that run along one of the side surfaces. Each die is bonded to the die mounting area such that a first contact is electrically connected to the die mounting area, and a second contact is connected to one of the second and third sections. The first protrusion of the first section provides improved heat transfer.Type: GrantFiled: January 12, 2007Date of Patent: September 21, 2010Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.Inventors: Aizar Abdul Karim Norfidathul, Chiau Jin Lee, Kheng Leng Tan, Keat Chuan Ng, Kiam Soon Ong
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Publication number: 20100231823Abstract: An optical sheet (40) includes a body portion (42) and unit shaped elements (45) arranged side-by-side on a light outgoing side of the body portion, each of the unit shaped elements extending linearly in a direction intersecting the arrangement direction. Each of the unit shaped elements has a tapered cross-sectional shape in a main cross-section. In a main cross-section, the angle of the tangent to either end of the outline of each unit shaped element with respect to the sheet plane of the body portion is not less than 55° and not more than 75°. The optical sheet makes it possible to enhance the efficiency in the use of source light, thereby effectively enhancing the front direction luminance.Type: ApplicationFiled: December 22, 2009Publication date: September 16, 2010Applicant: Dai Nippon Printing Co., Ltd.Inventors: Masahiro Goto, Daijiro Kodama
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Publication number: 20100202147Abstract: A light guiding structure of a light guide plate is provided. The light guiding structure comprises a plurality of protrusion ridge portions extending along a longitudinal direction. The height or the vertex angle of each protrusion ridge portion periodically or randomly varies along the longitudinal direction.Type: ApplicationFiled: May 22, 2009Publication date: August 12, 2010Applicant: AU OPTRONICS CORP.Inventors: Chiung-Han Wang, Jing-Huan Liao, Yu-Tsung Huang
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Publication number: 20100182793Abstract: A portable foldable lighting designer (10) which includes a closed frame (11) made from an elastic, deformable material, where the frame is movable between a folded and an unfolded position, and a covering (12). The covering (12) is arranged in the frame and held by the latter to manipulate the light, and is kept tightened in the plane of the frame, when the lighting designer is completely unfolded by the material tension of the material of the frame. The covering is dimensioned smaller in a direction (B) than the width (D) of the uncovered frame in the completely unfolded position.Type: ApplicationFiled: January 14, 2010Publication date: July 22, 2010Inventor: Wolfgang-Peter Geller
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Patent number: 7753563Abstract: A display device comprising a body for housing first and second transparent members and a carrier that supports sources of light. The first member is spaced from the second member such that a first plenum chamber is formed between the first and second members. The carrier is spaced from the second member on a side of the second member opposite the first chamber such that a second plenum chamber is formed between the second member and the carrier. A spacer separates the carrier from the second member by a predetermined amount. The sources of light being directed at the first and second members and the first and second chambers. The first chamber is filled with optical particles to diffuse the light passing through. The carrier applies a load, via the spacer, on the second member such that the particles are maintained at a pressure.Type: GrantFiled: September 6, 2005Date of Patent: July 13, 2010Assignee: Beadlight LimitedInventor: Alan Parker
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Patent number: 7748875Abstract: A photographic light diffusing device is provided. A flexible, transparent cowl is adapted to be mounted on a photographic light source, the cowl including a plurality of ribs and an opening through which the photographic light source is visible when the cowl is mounted on the photographic light source. The cowl elastically deforms to fit onto the photographic light source. A removable, flexible cover is placed over the opening of the cowl.Type: GrantFiled: April 22, 2008Date of Patent: July 6, 2010Inventor: Gary M. Fong
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Publication number: 20100165619Abstract: A light diffusing plate integrally formed with an optical element array on the front and rear surfaces thereof, and a direct lighting device having this light diffusing plate installed on a light reflection plate having a box type shape and provided therein with a light source, whereby a light diffusing plate and a thin direct lighting device are provided which eliminate luminance non-uniformity among a number of light sources (inter-light-sources distance) at a practical level (making luminance uniform), and realize higher luminance (delivering luminance equal to that when conventional prism sheets are laminated)Type: ApplicationFiled: June 21, 2006Publication date: July 1, 2010Applicant: Idemitsu Kosan Co., Ltd.Inventors: Hiroshi Kawato, Masami Kogure
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Publication number: 20100157569Abstract: A method of using a light diffusion balloon to image a subject is shown and described. The balloon is inflated with a balloon gas that is lighter than air and is placed between a source of light such as the sun and a subject to be imaged. When inflated, the balloon has a length, width, and thickness, and the thickness is less than both the length and the width. The balloon gas has a molecular weight less than that of air, and in one example is helium.Type: ApplicationFiled: December 22, 2008Publication date: June 24, 2010Inventor: Anthony Vietro
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Publication number: 20100142211Abstract: A control console assembly includes a diffusion layer and an electrode of a capacitive sensor. The diffusion layer has an outer surface and an inner surface substantially opposite the outer surface. The electrode of the capacitive sensor is mated to at least one of the inner surface or the outer surface of the diffusion layer.Type: ApplicationFiled: November 4, 2009Publication date: June 10, 2010Inventors: Richard A. BOELSTLER, Eluid David Carter
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Publication number: 20100118552Abstract: A portable photographic light diffuser is configured to be mounted to a photographic light source on a camera, the portable photographic light diffuser including a base adapted to engage the photographic light source on the camera, the base defining a socket; and a cowl extending from the base, the cowl being transformable between an expanded configuration, wherein the cowl extends by a first length from the base, and a collapsed configuration, wherein the cowl extends by a second length from the base, the second length being less than the first length.Type: ApplicationFiled: October 22, 2009Publication date: May 13, 2010Inventor: Gary Fong
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Patent number: RE41876Abstract: A light source mechanism for an imaging apparatus comprises at least a point light source and a light shield. The point light source located at one end of the light shield is used for providing illumination to the imaging apparatus during a scanning process. The light shield is a hollow pipe structure and further includes a long slot lying along an axial longitudinal direction thereof for allowing lights to leave the light shield. An inner surface of the light shield is made as a diffusion surface for evenly diffusing lights inside the light shield, by which a homogeneous line light source for the scanning process is formed at the long slot of the light shield.Type: GrantFiled: November 14, 2005Date of Patent: October 26, 2010Inventor: Po-Hua Fang