Diffuser Or Diffusing Of Incident Light (e.g., Optical Coupler) Patents (Class 362/558)
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Patent number: 11981258Abstract: A component for a vehicle interior may comprise a display system comprising a light source and a composite structure comprising a base layer, an intermediate layer and a cover layer. The base layer may comprise a surface comprising a set of elements. The composite structure may present a composite visual effect contributed by the composite structure and/or a visual effect contributed by light from the light source. The visual effect contributed by the composite structure may comprise a visual effect without light from the light source and/or a visual effect with light from the light source transmitted through the composite structure. The composite visual effect of the display system may comprise a visual effect of the form/elements of the base layer and/or the form/visual object/pattern of the intermediate layer and/or the form/visual object/pattern of the cover layer.Type: GrantFiled: May 2, 2023Date of Patent: May 14, 2024Assignee: Shanghai Yanfeng Jinqiao Automotive Trim Systems Co. Ltd.Inventors: Jixiang Zhang, Jing Gu
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Patent number: 11953782Abstract: The present disclosure relates to a display panel including a composite optical sheet that can replace the existing optical sheet and diffusion plate.Type: GrantFiled: December 1, 2022Date of Patent: April 9, 2024Assignee: LG Display Co., Ltd.Inventor: Inwha Lee
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Patent number: 11906771Abstract: Embodiments of the disclosure relates to a light-diffusing element. The light diffusing element includes a glass core having a first refractive index. The light diffusing element also includes a cladding surrounding the glass core. The cladding includes an inner cladding surface and an outer cladding surface. The inner cladding surface and the outer cladding surface define a cladding thickness of from 5 ?m to 30 ?m. The cladding has a second refractive index that is less than the first refractive index of the glass core. The light diffusing element also includes a coating surrounding the cladding. The coating has an inner coating surface and an outer coating surface. The inner coating surface contacts the outer cladding surface. The outer coating surface defines an outermost surface of the light-diffusing element, and the coating includes first scattering centers.Type: GrantFiled: December 9, 2019Date of Patent: February 20, 2024Assignee: Corning IncorporatedInventors: Kevin Wallace Bennett, Stephan Lvovich Logunov
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Patent number: 11868838Abstract: The present application provides a device supporting card-swiping, which relates to the technical field of communications. The device supporting card-swiping comprises a display screen (1), a protective back plate (2) and a contactless card reader (3). Wherein the antenna (310) of the contactless card reader (3) is arranged between the display screen (1) and the protective back plate (2) for sensing a user's card swiping signal. The device supporting card-swiping can increase the effective card swiping distance and improve user experience.Type: GrantFiled: April 13, 2020Date of Patent: January 9, 2024Assignee: HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD.Inventors: Nan Jiang, Shujun Zhang, Shisen Qian
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Patent number: 11860477Abstract: An electronic device includes: a back plate; an optical film disposed on the back plate; and a support module disposed between the back plate and the optical film, wherein the support module includes a base, and the base includes a hollow space and a curved surface away from the back plate.Type: GrantFiled: September 22, 2022Date of Patent: January 2, 2024Assignee: INNOLUX CORPORATIONInventors: Ming-Tien Wang, Chin-Tu Tsai, Chih-Hung Hsu, Chih-Hung Liu, Hsiang-Yu Juan
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Patent number: 11820284Abstract: A vehicle illumination device includes a light source and a long light guide body that extends linearly in a direction of entry of light from one end thereof disposed so as to be adjacent to the light source and radiates light from a linear light-emitting face, the light guide body having formed thereon projecting parts arranged in a longitudinal direction on a back face of the light-emitting face and extending in a direction orthogonal to the direction of entry of light. The widths of the projecting part vary in accordance with the distance from the light source. Provided is a vehicle illumination device that enables light emission with uniform luminance in the longitudinal direction to be realized while improving the productivity of a light guide body.Type: GrantFiled: August 6, 2019Date of Patent: November 21, 2023Assignee: TS TECH CO., LTD.Inventors: Kenta Kasuya, So Ono, Tomoya Takahashi, Manabu Mihira
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Patent number: 11820287Abstract: A vehicle interior component configured to provide an illuminated display/image and comprising a composite structure is disclosed. The component may comprise a cover providing a surface for the illuminated display/image and a substrate; the cover may comprise a cover layer, bottom layer and/or intermediate layer. The cover layer may comprise a surface layer and a base layer. The base layer and/or bottom layer may comprise a reinforcing layer. The surface layer, cover layer and/or base layer may comprise a pigment. The surface layer, cover layer and/or bottom layer may comprise a colorant (or pigment, dye, etc.). The bottom layer may comprise a pattern region comprising the image, a mask and/or light-blocking layer. The composite structure may comprise the cover, a functional layer, spacer/buffer layer, diffuser layer, sensor grid, capacitive sensor, textile and/or base/substrate. The cover surface may comprise a skin.Type: GrantFiled: October 6, 2021Date of Patent: November 21, 2023Assignee: Shanghai Yanfeng Jinqiao Automotive Trim Systems Co. Ltd.Inventors: He Yang, Jing Gu, Yang Bai
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Patent number: 11774055Abstract: A tamper resistant nightlight comprising a body and a housing. The body may comprise a base, a cover coupled to the base, and at least one circuit located between the base and the cover. The base is configured to be disposed over a face of an electrical outlet. The at least one circuit comprises at least one light. The body may also comprise a plurality of plug apertures extending through the cover and through the base. The plurality of plug apertures is configured to align with an electrical receptacle on the electrical outlet. The housing is coupled to the body and comprises a locking element configured to restrict a child from removing the tamper resistant nightlight from the electrical outlet. The locking element may be configured as a flange that extends away from the body and behind a rear surface of an electrical wall plate associated with the electrical outlet.Type: GrantFiled: May 24, 2022Date of Patent: October 3, 2023Assignee: Titan3 Technology LLCInventors: Jeffrey P. Baldwin, John E. Klein
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Patent number: 11777063Abstract: A method for manufacturing a planar light source includes: preparing a structure body including a wiring substrate, a light guide plate including a first major surface, a second major surface, and an inner side surface defining a first hole with an opening on a first major surface side, and a light source arranged on the wiring substrate in the first hole; injecting a first resin material downward through the opening of the first hole, the first resin material including a light-diffusing agent; and curing the first resin material to form a first resin layer on a wiring substrate between the inner side surface of the first hole and a first side surface of a first light-transmitting member.Type: GrantFiled: January 29, 2021Date of Patent: October 3, 2023Assignee: NICHIA CORPORATIONInventor: Toru Hashimoto
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Patent number: 11725799Abstract: A dental light comprises at least one light emitting diode light source configured to produce a light beam and at least one collimating lens system situated to receive the light beam. The collimating lens system is configured to collect and collimate the light beam. The collimating lens system can additionally modify the beam through controlled diffusion or shape the beam using an aperture.Type: GrantFiled: August 16, 2021Date of Patent: August 15, 2023Assignee: A-dec, Inc.Inventors: Christopher C. Stone, Takaaki Nakagawa, Eric Bube, Randall Joel Lonsdale, Patrick W. Berry, Ryan M. Williams, Joseph Van Domelen, Jason Alvarez, Jonathan E. Myers
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Patent number: 11705856Abstract: An assembly comprising at least one electrical device; the at least one electrical device being mounted to at least one support; at least one solar element for creating electric power from solar power; at least one energy storage device for storing electricity generated by the solar element; at least one wind impacting surface operatively associated with the support; at least one energy converter for generating electric power from the wind; and at least one shaft operatively connected to the at least one energy converter and the support. Optionally, the energy converter comprises at least one motor which operates to rotate the support; the at least one motor being operatively connected to the at least one battery for storing electric power therein.Type: GrantFiled: June 4, 2019Date of Patent: July 18, 2023Inventor: Lawrence E Anderson
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Patent number: 11560992Abstract: An electronic candle includes a casing, a light source, a driving component, a swinging support member, and a flame head. The casing has a mounting cavity, where the light source and the driving component are mounted, and is provided at the upper end with an opening communicating with the mounting cavity. The light source is right below the opening and projects light on the flame head, which is mounted, and can swing freely, on the light source and at least partially extends out of the opening. The driving component can drive the swinging support member to swing, thereby driving the flame head, which is connected to the swinging support member, to swing freely with respect to the light source. With the swinging support member intermittently driven by the driving component and swinging freely under gravity during the undriven intervals, the flame head can swing dynamically to simulate a swinging flame.Type: GrantFiled: December 27, 2021Date of Patent: January 24, 2023Inventor: Mao-Lung Lin
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Patent number: 11536888Abstract: Embodiments of a light diffusing device with a color conversion layer are disclosed. Specifically the color conversion layer includes a luminophore that converts light from a higher wavelength to a lower wavelength.Type: GrantFiled: April 1, 2019Date of Patent: December 27, 2022Assignee: Corning IncorporatedInventors: Stephan Lvovich Logunov, Manuela Ocampo, Peter Gerard Wigley
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Patent number: 11487156Abstract: A backlight module includes: a back plate; an optical film disposed on the back plate; and a support module disposed on the back plate and between the back plate and the optical film, wherein the support module includes a base, and an elasticity coefficient of the base is greater than or equal to 0.4 kgf/mm and smaller than or equal to 0.6 kgf/mm.Type: GrantFiled: August 24, 2021Date of Patent: November 1, 2022Assignee: INNOLUX CORPORATIONInventors: Ming-Tien Wang, Chin-Tu Tsai, Chih-Hung Hsu, Chih-Hung Liu, Hsiang-Yu Juan
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Patent number: 11454363Abstract: An illumination device includes a light source and a light guide including a first light guide portion and a second light guide portion. The second light guide portion contains a light-emitting face, and the excitation light emitted by the light source is coupled and enters the first light guide portion and is emitted via the light-emitting face of the second light guide portion. The area of the cross section, perpendicular to a light guide central line, of the second light guide portion is gradually decreased in the direction of an optical axis of the light source. An angle between an intersecting line of the light-emitting face of the second light guide portion and the cross section passing through the light guide central line or any tangent line of the intersecting line and the light guide central line is an acute angle.Type: GrantFiled: May 15, 2019Date of Patent: September 27, 2022Assignee: YLX IncorporatedInventors: Bin Chen, Xianpeng Zhang, Yi Li
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Patent number: 11441277Abstract: The present disclosure relates to an LED active luminous traffic marking based on light-transmitting concrete and a construction method thereof. The luminous traffic marking includes a light-transmitting concrete layer and a light source layer that are arranged vertically, where the light-transmitting concrete layer includes a concrete base and a plurality of light-guide fibers embedded in the concrete base, the light source layer includes an integrated LED light source board and a packaging protective shell for packaging the integrated LED light source board, the packaging protective shell is a shell with anchoring hollow protrusions, and the packaging protective shell is anchored to the concrete base through the anchoring hollow protrusions. Compared with the prior art, the present disclosure improves the visibility, digitalization and intelligence level of road traffic markings, and has a broad application prospect.Type: GrantFiled: March 15, 2021Date of Patent: September 13, 2022Assignee: TONGJI UNIVERSITYInventors: Cancan Song, Zhongyin Guo, Bencheng Zhu, Xiaoyan Hao, Peili Wang, Lin Lin
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Patent number: 11442213Abstract: In one aspect, a film-based lightguide includes a film with a light emitting region, a plurality of coupling lightguides in a form of an array of strips extended from the body of the film and folded along a fold line, a light mixing region of the film positioned along the film between the plurality of coupling lightguides and the light emitting region, and an extended coupling lightguide region of the coupling lightguides between the fold line and the light mixing region where the plurality of coupling lightguides are not folded. For one or more of the plurality of coupling lightguides, a length along a coupling lightguide between the fold line and a light input end of the coupling lightguide is less than a length of the coupling lightguide in the extended coupling lightguide region.Type: GrantFiled: May 17, 2021Date of Patent: September 13, 2022Assignee: Azumo, Inc.Inventors: Anthony Nichol, Zane Coleman
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Patent number: 11414003Abstract: A lighted guide post assembly for a boat trailer is provided. The assembly includes a square tubular angled support post that attaches to a boat trailer, a translucent circular outer tube that covers the square support post, and strips of lights that suspend within the interior of the outer tube between the outer tube and the square support post. This arrangement allows the guide post to glow on four sides without light bleeding together from adjacent sides of the guide post.Type: GrantFiled: April 20, 2021Date of Patent: August 16, 2022Inventor: Jonathan Reynolds
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Patent number: 11406481Abstract: A handheld device (100) including a housing; at least one light source arranged within the housing, the at least one light source configured to emit light in at least a first direction; an optical element (300) comprising an inside surface (A) facing the at least one light source and an outside surface (B) opposite the inside surface, the optical element configured to transmit light from the light source; and a plurality of laser-induced modifications (302) formed on the inside surface or inside the optical element and configured to alter a transmission of light through the optical element.Type: GrantFiled: January 2, 2019Date of Patent: August 9, 2022Assignee: KONINKLIJKE PHILIPS N.V.Inventors: David Storch, Andreas Gardeback, Regan Starkey Foster
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Patent number: 11383638Abstract: An illumination device for an interior space of a vehicle includes at least one light source and at least one light surface. The light surface is formed by at least one at least partially mirrored optical fiber, and the optical fiber can be adjusted to a shape of a windscreen.Type: GrantFiled: October 9, 2019Date of Patent: July 12, 2022Assignee: MERCEDES-BENZ GROUP AGInventor: Norbert Spazier
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Patent number: 11353652Abstract: An electronic device may have a display overlapped by a cover layer. Portions of the surface of the display and cover layer may have curved profiles. The display may include a flexible substrate and may have bent edge portions protruding from a central region. Gaps may be formed between regions of pixels on a common substrate or between separate display panels. An image transport layer formed from a coherent fiber bundle or a layer of Anderson localization material configured to exhibit two-dimensional transverse Anderson localization of light may have an input surface that receives an image from adjacent display pixels and an output surface on which the image is displayed. The output surface may have a curved profile and may exhibit compound curvature. The input surface may have a profile with curved portions or other shapes. Image transport layers can be used to cover gaps between sets of pixels.Type: GrantFiled: July 8, 2019Date of Patent: June 7, 2022Assignee: Apple Inc.Inventors: Michael B. Wittenberg, Jean-Pierre S. Guillou, Tyler R. Kakuda, Christopher D. Prest, Marwan Rammah, Rasamy Phouthavong, Richard H. Dinh, Steven P. Hotelling, Yi Qiao, Michael J. Brown, Hao Dong, David A. Pakula
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Patent number: 11348496Abstract: A detecting method and a detecting circuit of a LCD panel are provided. The method includes steps of: a detecting module in real time detecting a waveform of a pulse detecting signal inputted into the LCD panel; providing a feedback of the waveform of the pulse detecting signal to a pulse output module; determining whether the waveform of the pulse detecting signal is deformed by the pulse output module; correcting the pulse detecting signal by the pulse output module if the waveform of the pulse detecting signal is determined to be deformed; inputting a corrected pulse detecting signal to the LCD panel to detect the LCD panel. The disclosure prevents from abnormal display panel images resulted from a shorting bar lit-up method, reduces over checking or missing, and find out defects quickly and correctly by operators or detecting equipment to enhance quality and benefits and to reduce cost.Type: GrantFiled: December 19, 2019Date of Patent: May 31, 2022Inventors: Chaoqun Wang, Kewei Wu
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Patent number: 11339936Abstract: Disclosed is a swinging flame head device, comprising a fixed housing (1), a flame head housing (5), a light source (61) and a spring (4). The fixed housing (1) has an internal space and an upper opening, the flame head housing (5) comprises a stereoscopic flame-shaped portion and has an internal hollow structure, and the flame head housing (5) is at least partially located above the upper opening of the fixed housing (1). The light source (61) is arranged inside the flame head housing (5), and light rays emitted from the light source (61) illuminate the flame head housing (5) from inside to outside from the interior of the flame head housing (5).Type: GrantFiled: December 4, 2020Date of Patent: May 24, 2022Inventor: Haisong Dong
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Patent number: 11294235Abstract: An optical film for efficiently and uniformly diffuses and collects the light from mini LEDs or micro LEDs, the bead diffusion layer and the pattern diffusion layer of the first diffusion sheet are formed such that a first diffusion rate of the light on the one surface of the first diffusion sheet is higher than a second diffusion rate of the light on the other surface of the first diffusion sheet.Type: GrantFiled: December 22, 2020Date of Patent: April 5, 2022Assignee: LMS CO., LTD.Inventors: Yong Won Choi, Ho Seong Na, Min Soo Lee, Woo Joo Lah
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Patent number: 11255506Abstract: A headlight module with a minimum of one LED for generating a low beam and with a minimum of one LED for generating a high beam. An optical element is provided into which light from the minimum of one LED for generating the high beam can be emitted. The optical element is arranged as a cover for a portion of the light that can be generated by the LED for generating a low beam. The optical element features a decoupling surface that at least partially includes a surface structure with a composition such that, in the area of the surface structure, light is emitted that can be decoupled from the optical element.Type: GrantFiled: May 10, 2017Date of Patent: February 22, 2022Assignee: Hella GmbH & Co. KGaAInventors: David Brunne, Dmitry Fedosik
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Patent number: 11221516Abstract: A backlight module and a liquid crystal display device are provided. The backlight module includes: a light guide plate including a light incident surface, a light emergent surface, and a bottom surface opposite to the light emergent surface; a light source, disposed on a side of the light incident surface of the light guide plate, the light emitted by the light source enters the light guide plate from the light incident surface; a plurality of collimating parts, disposed on at least one of the light emergent surface of the light guide plate and the bottom surface opposite to the light emergent surface, wherein a portion of the light entering the light guide plate is collimated by the plurality of collimating parts and then emitted from the light emergent surface of the light guide plate.Type: GrantFiled: February 24, 2018Date of Patent: January 11, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jifeng Tan, Wenqing Zhao, Wei Wang, Xiaochuan Chen, Xiandong Meng
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Patent number: 11092310Abstract: A dental light comprises at least one light emitting diode light source configured to produce a light beam and at least one collimating lens system situated to receive the light beam. The collimating lens system is configured to collect and collimate the light beam. The collimating lens system can additionally modify the beam through controlled diffusion or shape the beam using an aperture.Type: GrantFiled: August 26, 2019Date of Patent: August 17, 2021Assignee: A-dec, Inc.Inventors: Christopher C. Stone, Takaaki Nakagawa, Eric Bube, Randall Joel Lonsdale, Patrick W. Berry, Ryan M. Williams, Joseph Van Domelen, Jason Alvarez, Jonathan E. Myers
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Patent number: 10935711Abstract: The present invention provides a light guide plate (30) for an electronic paper display and the electronic paper display. The light guide plate (30) is arranged above a display surface of an electrophoretic display module (10), and it comprises a main body, wherein a tooth-shaped pattern is arranged on an in-light surface (33) of the main body. The electrophoretic display module (10) comprises a microcapsule electrophoretic display module or a microcup electrophoretic display module. The tooth-shaped pattern is formed by a plurality of arc-shaped projections (331), arc-shaped recesses (332), angle-shaped projections, or angle-shaped recesses (333).Type: GrantFiled: February 11, 2015Date of Patent: March 2, 2021Assignee: Guangzhou OED Technologies, INC.Inventors: Yongqiang Lin, Jingquan Sun
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Patent number: 10914435Abstract: A modular light system comprising a lightbar assembly with first and second conductive parts, each of which extend in a direction generally transverse to a longitudinal axis of the lightbar assembly. The modular lightbar system further comprises a lightbar assembly connector having a major surface and with a conductive part that extends in a direction generally transverse to the major surface. Such a design and configuration enables the lightbar assembly connector and lightbar assembly to be connected by moving the lightbar assembly connector in a direction generally transverse to the longitudinal axis of the lightbar assembly (or by moving the lightbar assembly in a direction generally transverse to the major surface of the lightbar assembly connector). It is thus possible to assemble a lightbar system comprised of a plurality of lightbar assemblies and lightbar assembly connectors, any of which are removable, replaceable, or serviceable.Type: GrantFiled: June 5, 2020Date of Patent: February 9, 2021Assignee: MAXLITE, INC.Inventors: Aymen Chami, Yaolin Tang
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Patent number: 10914953Abstract: A tunable waveguide display includes a source waveguide, a first tunable lens (FTL), an output waveguide, and a second tunable lens (STL). The source waveguide receives light, expands the light in a first dimension, and outputs the expanded light. The FTL adjusts a wavefront of the expanded light to form adjusted light. The output waveguide receives the adjusted light, expands the adjusted light in a second dimension to form image light, and outputs the image light. The STL adjusts a wavefront of the image light. The FTL and the STL control an image plane of the image light.Type: GrantFiled: June 11, 2018Date of Patent: February 9, 2021Assignee: Facebook Technologies, LLCInventors: Wai Sze Tiffany Lam, Yijing Fu, Lu Lu, Pasi Saarikko
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Patent number: 10914976Abstract: Provided is an electronic device including: a sensing component; a polarization film disposed on the sensing component; and a quarter-wave plate disposed between the sensing component and the polarization film.Type: GrantFiled: November 1, 2018Date of Patent: February 9, 2021Assignee: INNOLUX CORPORATIONInventors: Jian-Cheng Chen, Hao-Yu Liou, Ayumu Mori, Kazuto Jitsui, Chung-Kuang Wei, Chin-Lung Ting, Keiko Edo, Minoru Shibazaki
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Patent number: 10794565Abstract: A dielectric collimator (1) comprising a center lens (3), the center lens comprising a light input surface (31) and a light exit surface (32), the light exit surface (32) being convex and substantially hemispherical, and the light input surface (31) comprising a central surface section (312) forming a light transmitting portion of the center lens adapted for receiving incoming light (5) and transmitting it to be emitted from the light exit surface, and a peripherally extending, annular outer surface section (311) being substantially plane and adapted for redirecting incoming light (5) in such a manner that the redirected light (7) undergoes TIR at the light exit surface and is emitted back out of the light input surface.Type: GrantFiled: February 1, 2018Date of Patent: October 6, 2020Assignee: Signify Holding B.V.Inventor: Oliver Dross
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Patent number: 10788611Abstract: A spotlight (1) is described for illuminating a film, studio, stage, event, and/or theatre environment. The spotlight comprises: a reflector arrangement (11) having a reflective inner surface (113), which delimits a reflector interior (114); a number of passive light guides (12) having feed points (121), which are arranged outside the reflector interior (114), and having light output points (122), which are arranged inside the reflector interior (114).Type: GrantFiled: August 9, 2017Date of Patent: September 29, 2020Assignee: ARNOLD & RICHTER CINE TECHNIK GMBH & CO. BETRIEBS KGInventor: Julius Muschaweck
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Patent number: 10782188Abstract: A control device may include a removable faceplate, a planar printed circuit board (PCB), a structure located between the faceplate and the PCB, one or more LEDs (e.g., side firing LEDs) mounted to the PCB, and a light-guiding component. The structure may include an antenna configured to transmit or receive radio frequency signals. The faceplate may be configured to be mounted to the control device, and may include a light-conductive body and an opaque material provided on a front surface of the faceplate. At least one indicia may be engraved in the opaque material. The light-guiding component may include a planar portion and a curved portion. The planar portion may be located between the faceplate and the structure. The curved portion may extend between the LEDs on the printed circuit board and the planar portion to transmit light generated by the LEDs to the faceplate to illuminate the indicia.Type: GrantFiled: October 7, 2016Date of Patent: September 22, 2020Assignee: Lutron Technology Company LLCInventors: William Taylor Shivell, Matthew Philip McDonald, Alexander Wade Gage, Alan Simchayoff, Dmitriy Vinokurov
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Patent number: 10732340Abstract: Techniques of providing illumination to a head-mounted display (HMD) involve providing off-board illumination apart from the HMD. An off-board illumination unit delivers the illumination to the HMD via optical fibers. The optical fibers are lightweight and do not restrict motion of a user. Because the power source is less restricted, the off-board illumination unit provides flexibility in the hardware used to generate the illumination. For example, the illumination unit may use red, green, and blue narrow-band diode lasers. Further, by controlling modes in the fiber and providing additional light-guiding hardware, the angles at which light strikes LCD pixels may be largely restricted to certain specified angles. Restricted angles of incidence enable the use of fast-switching liquid crystals without degrading the image quality. Such a restriction allows for high-resolution imaging using rapid switching of the liquid crystal which enables very low latencies.Type: GrantFiled: July 21, 2017Date of Patent: August 4, 2020Assignee: GOOGLE LLCInventors: Martin Friedrich Schubert, Michael Grundmann
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Patent number: 10732339Abstract: A display apparatus includes a display panel, a light guide plate disposed behind the display panel and configured to guide light to the display panel, a light source configured to irradiate light to at least one side of the light guide plate, a diffusion plate disposed between the display panel and the light guide plate, and at least one diffusion plate support member coupled to the light guide plate and configured to support the diffusion plate. The light guide plate includes an optical pattern arranged in a light emitting surface facing the diffusion plate and at least one insertion hole for receiving the at least one diffusion plate support member. The optical pattern includes a pattern change region which surrounds at least a portion of the insertion hole.Type: GrantFiled: August 8, 2018Date of Patent: August 4, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Duk-jin Jeon, Dae-young Kim, Hyung-ki Kim, Yong-sung Yoo, Kil-hong Lee, Tae-hee Jeon
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Patent number: 10731811Abstract: The invention relates to the field of illumination technology and provides a simulated candle tip, which comprises a light source arranged in the flame base such that a light emitted by the light source can be projected through the reflecting chamber of the flame cover, to simulate real flames. By controlling the power on/off of the electromagnetic coil and the direction of current, attracting and repelling forces can be generated between the electromagnetic coil and the magnet, to enable the flame holder to perform regular swing motion in forward, backward, left and right directions. In this way, both the light source disposed at the upper end of the flame holder and the flame cover can perform swing motion along with the flame holder, to simulate flickering effect of real burning flames. In such case, a stable swing motion can be realized, and it is easy to control.Type: GrantFiled: September 12, 2019Date of Patent: August 4, 2020Assignee: AE TECHNOLOGIES CO., LTD.Inventor: Wenfeng Wu
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Patent number: 10683973Abstract: A modular light system comprising a lightbar assembly with first and second conductive parts, each of which extend in a direction generally transverse to a longitudinal axis of the lightbar assembly. The modular lightbar system further comprises a lightbar assembly connector having a major surface and with a conductive part that extends in a direction generally transverse to the major surface. Such a design and configuration enables the lightbar assembly connector and lightbar assembly to be connected by moving the lightbar assembly connector in a direction generally transverse to the longitudinal axis of the lightbar assembly (or by moving the lightbar assembly in a direction generally transverse to the major surface of the lightbar assembly connector). It is thus possible to assemble a lightbar system comprised of a plurality of lightbar assemblies and lightbar assembly connectors, any of which are removable, replaceable, or serviceable.Type: GrantFiled: April 5, 2018Date of Patent: June 16, 2020Assignee: MAXLITE, INC.Inventors: Aymen Chami, Yaolin Tang
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Patent number: 10488708Abstract: A backlight module including a light output module, a first prism sheet, and a second prism sheet is provided. The light output module has a light output surface. The first prism sheet is disposed on the light output surface of the light output module. The first prism sheet has a plurality of first prism structures extending in a first extending direction. The second prism sheet is disposed on the first prism sheet. The second prism sheet has a plurality of second prism structures extending in a second extending direction. The angle between the first extending direction and the second extending direction is less than or equal to 30 degrees.Type: GrantFiled: June 21, 2018Date of Patent: November 26, 2019Assignee: Au Optronics CorporationInventors: Ming-Lung Chen, Ming-Chun Hsu, Li-Jia Chen, Cheng-Chuan Chen, Chih-Kang Wu
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Patent number: 10390690Abstract: A dental light comprises at least one light emitting diode light source configured to produce a light beam and at least one collimating lens system situated to receive the light beam. The collimating lens system is configured to collect and collimate the light beam. The collimating lens system can additionally modify the beam through controlled diffusion or shape the beam using an aperture.Type: GrantFiled: August 24, 2018Date of Patent: August 27, 2019Assignee: A-dec, Inc.Inventors: Christopher C. Stone, Takaaki Nakagawa, Eric Bube, Randall Joel Lonsdale, Patrick W. Berry, Ryan M. Williams, Joseph Van Domelen, Jason Alvarez, Jonathan E. Myers
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Patent number: 10338294Abstract: In an example embodiment, a cross runner of a suspended ceiling grid is provided, wherein the cross runner may comprise a light fixture configured to function as a cross runner, and the light fixture may comprise a light guide.Type: GrantFiled: February 26, 2016Date of Patent: July 2, 2019Assignee: Southpac Trust International Inc., Trustee of the LDH TrustInventor: Leslie David Howe
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Patent number: 10302855Abstract: A liquid crystal display device includes a plurality of light source packages each having a light-emitting portion for emitting light, a light guide plate which light emitted from the light source packages enters through the incidence surface, having a height and a width, and from which the light exits through the exit surface, and a liquid crystal display panel for controlling, for each pixel, the orientation of a liquid crystal material to control the transmission of the light exiting through the exit surface. Each light source package has two opposing long sides and two opposing short sides when viewed from the direction of the light emitted by the light-emitting portion. The plurality of light source packages are arranged long side to long side in the direction along the width.Type: GrantFiled: January 16, 2018Date of Patent: May 28, 2019Assignee: Japan Display Inc.Inventor: Norihiro Nakamura
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Patent number: 10254467Abstract: The present invention provides a backlight structure, including: a light source module having a first slant surface, where a slot is provided on the first slant surface, and the slot is configured to accommodate a light emitting element; a light guiding module having a light guiding plate and a light shielding layer, where a second slant surface is provided at a side of the light guiding module; and a baseplate configured to bear the light guiding module and the light source module. The light source module is engaged with the second slant surface of the light guiding module by means of the first slant surface.Type: GrantFiled: August 14, 2017Date of Patent: April 9, 2019Assignee: PRIMAX ELECTRONICS LTD.Inventors: Tien-Yu Yeh, Che-Wei Yang
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Patent number: 10222529Abstract: A lighting system may include one or more light sources and one or more light guides. A lighting system may be integrated into a window, a skylight, an exterior light such as a headlight, a tail light, or a high center-mounted stop light, or other exterior or interior portions of a system such as a vehicle. The light guide may be embedded in an adhesive layer in a vehicle structure. The light guide may be index-matched to the adhesive layer so that unilluminated portions of the light guide are indistinguishable from the vehicle structure. The light guide may be formed from optical fibers. The optical fibers may include a light-scattering optical fiber that scatters light out of the vehicle structure. The light-scattering optical fiber may be fused to a non-scattering optical fiber that guides light from a light source to the light-scattering optical fiber.Type: GrantFiled: September 13, 2017Date of Patent: March 5, 2019Assignee: Apple Inc.Inventors: Gregory A. Cohoon, Clarisse Mazuir, Matthew E. Last
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Patent number: 10222022Abstract: A fiber bundle includes a plurality of optical fibers, a light source, and a fiber cover. The light source is coupled to the plurality of optical fibers and operable to direct light into input ends of the plurality of optical fibers. The fiber cover has a predetermined cross-sectional shape configured to hold the plurality of optical fibers in a bundled position and to transmit light into an outer region of the plurality of optical fibers defining an illumination region for vehicle lighting functions.Type: GrantFiled: July 6, 2017Date of Patent: March 5, 2019Assignee: Valeo North America, Inc.Inventors: Brant Potter, Kayla Greene, Nate Montgomery
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Patent number: 10222518Abstract: A light diffusion sheet for overlaying is to be provided on a front face side of a prism sheet in a backlight unit of a liquid crystal display device, and has a substrate layer and a light diffusion layer overlaid on a front face side of the substrate layer, in which the light diffusion layer contains a resin matrix and resin beads dispersed in the resin matrix, wherein: a mode diameter in a volume-weighted particle size distribution of the resin beads is no less than 2.5 ?m and no greater than 5.5 ?m; a density of the resin beads per unit area is no less than 9,000 beads/mm2 and no greater than 24,000 beads/mm2; and an average thickness of the light diffusion layer is no less than 2 ?m and no greater than 9 ?m.Type: GrantFiled: December 6, 2016Date of Patent: March 5, 2019Assignee: Keiwa Inc.Inventor: Tadayuki Nonaka
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Patent number: 10211381Abstract: A light-emitting device includes: a semiconductor laser element; a supporting member located above the semiconductor laser element, the supporting member having a through-hole that allows light emitted from the semiconductor laser element to pass therethrough; a fluorescent member located in the through-hole, the fluorescent member containing a fluorescent material that is excitable by light emitted from the semiconductor laser element so as to emit light having a wavelength different from a wavelength of the light emitted from the semiconductor laser element; and a light-transmissive heat dissipating member including: a base portion, and a projecting portion projecting from the base portion into the through-hole. An upper surface of the projecting portion of the heat dissipating member is bonded to a lower surface of the fluorescent member. An upper surface of the base portion of the heat dissipating member is bonded to a lower surface of the supporting member.Type: GrantFiled: May 30, 2017Date of Patent: February 19, 2019Assignee: NICHIA CORPORATIONInventor: Toshiaki Yamashita
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Patent number: 10204248Abstract: The present invention relates to an active alignment method of a receiving device (2, 2?) including a sensor (4) and of a illumination device (6, 6?) including at least one light source (18, 8?) suitable for emitting a beam of light, including: —Assembling said receiving device (2, 2?); —Stably fixing said receiving device (2, 2?) on a chassis (30); —Actively aligning an optical group (11, 11?) of said illumination device (6, 6?) with respect to said light source (18, 18?); —Fixedly connecting said optical group (11, 11?) of said illumination device to said light source (18, 18?); —Actively aligning said illumination device (6, 6?) with respect to said receiving device (2, 2?); and —Stably fixing said illumination device (6, 6?) to said chassis (30).Type: GrantFiled: May 8, 2015Date of Patent: February 12, 2019Assignee: DATALOGIC IP TECH S.R.L.Inventors: Anna Guagliumi, Federico Canini, Davide Bottazzi, Kurt Vonmetz
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Patent number: 9897284Abstract: An LED-based lamp can be made to have a form factor compatible with fixtures designed for MR16 lamps. Such a lamp can have a housing that provides an external electrical connection. Inside the housing is disposed a single emitter structure having a substrate with multiple light-emitting diodes (LEDs) arranged thereon. Different LEDs produce light of different colors (or color temperatures). For example, at least one LED can produce a warm white light, while at least one other LED produces a cool white light and at least one other LED produces a red light. A total-internal-reflection (TIR) lens is positioned to collect light emitted from the single emitter structure and adapted to mix the light from the LEDs to produce a uniform white light. A diffusive coating is applied to a front face of the TIR lens for further color mixing.Type: GrantFiled: March 26, 2013Date of Patent: February 20, 2018Assignee: LedEngin, Inc.Inventors: Xiantao Yan, Wu Jiang, Zequn Mei
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Patent number: RE47288Abstract: Light diffusing optical fibers for use in illumination applications and which have a uniform color gradient that is angularly independent are disclosed herein along with methods for making such fibers. The light diffusing fibers are composed of a silica-based glass core that is coated with a number of layers including both a scattering layer and a phosphor layer.Type: GrantFiled: May 5, 2017Date of Patent: March 12, 2019Assignee: CORNING INCORPORATEDInventors: Stephan Lvovich Logunov, Paul John Shustack