Panel Type Patents (Class 362/330)
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Patent number: 11960111Abstract: An optical film, an optical film set, a backlight module and a display device are provided. The optical film includes a main body, plural first prism structures and plural second prism structures. The main body has a first optical surface and a second optical surface. The first prism structures are disposed on the first optical surface. Each of the first prism structures extends along a first direction. The second prism structures are disposed on the second optical surface. Each of the second prism structures extends along a second direction. The first direction is different from the second direction.Type: GrantFiled: November 16, 2022Date of Patent: April 16, 2024Assignee: Radiant Opto-Electronics CorporationInventors: Wei-Hsuan Chen, Chung-Yung Tai, Chun-Yi Wu
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Patent number: 11947151Abstract: A lighting device includes a light guide having a light output surface, one or more LED packages having two or more spatially separated LED chips, and two or more wavelength dependent modification features located on the output surface of the light guide. Each wavelength dependent modification features is configured to modify the intensity of light from one or more of the LED chips to provide homogeneous colored light.Type: GrantFiled: April 8, 2021Date of Patent: April 2, 2024Assignee: Design LED Products LimitedInventors: James Gourlay, Marius Jankauskas
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Patent number: 11897386Abstract: A lighted applique for a vehicle body panel including an opaque body panel applique and one or more display element cutouts each having a cutout profile formed in the opaque body panel applique. At least one non-opaque display element is mounted within the one or more display element cutouts such that a panel engagement surface is in contact with a panel exterior surface. At least one LED strip is mounted within the at least one LED strip channel and an electrical connection assembly is in communication with the at least one LED strip.Type: GrantFiled: August 10, 2022Date of Patent: February 13, 2024Inventors: Rollin Anthony Tobie, Lacey Jean Tobie
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Patent number: 11879613Abstract: An optical lens system for vehicle lighting includes a light guide with optical elements arranged as indentations in a light impacting surface of the lens body. The optical elements are configured with a truncated cone section arranged within the lens body in connection to the light impacting surface, and a rounded cap section arranged within the lens body in connection to the truncated cone section. A base surface of the rounded cap section is coincident with a top surface of the truncated cone section. The truncated cone section has an outer surface and a base surface, and the rounded cap section includes an outer surface. A cross-sectional transition between the outer surface of the truncated cone section and the outer surface of the rounded cap section is non-linear.Type: GrantFiled: March 10, 2023Date of Patent: January 23, 2024Assignees: NINGBO GEELY AUTOMOBILE RESEARCH & DEV. CO., LTD., ZHEJIANG GEELY HOLDING GROUP CO., LTD.Inventor: Joel Hake
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Patent number: 11867939Abstract: A composite optical film comprises: a first substrate; a plurality of reversed prisms disposed on a bottom surface of the first substrate; and a first diffusion film disposed over a top surface of the first substrate.Type: GrantFiled: July 7, 2022Date of Patent: January 9, 2024Assignee: UBRIGHT OPTRONICS CORPORATIONInventors: Yi-Long Tyan, Ching-An Yang, Pin-Han Wang, Lung-Pin Hsin, Hui-Yong Chen
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Patent number: 11860416Abstract: A plurality of waveguide display substrates, each waveguide display substrate having a cylindrical portion having a diameter and a planar surface, a curved portion opposite the planar surface defining a nonlinear change in thickness across the substrate and having a maximum height D with respect to the cylindrical portion, and a wedge portion between the cylindrical portion and the curved portion defining a linear change in thickness across the substrate and having a maximum height W with respect to the cylindrical portion. A target maximum height Dt of the curved portion is 10?7 to 10?6 times the diameter, D is between about 70% and about 130% of Dt, and W is less than about 30% of Dt.Type: GrantFiled: October 7, 2022Date of Patent: January 2, 2024Assignee: Magic Leap, Inc.Inventors: Samarth Bhargava, Christophe Peroz, Victor Kai Liu
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Patent number: 11754252Abstract: A lighting device disclosed in an embodiment of the invention includes a substrate; a plurality of light sources disposed on the substrate; a resin layer covering the light source on the substrate; a light blocking layer having an opening portion on the resin layer; and a lens plate disposed on the light blocking layer, wherein the lens plate includes a light transmitting portion and a convex portion arranged on one surface or the other surface of the light transmitting portion, and the total area of the opening portions is 50% or less of an area of an emission surface through which light is emitted through the resin layer, and the interval between the lens plate and the light blocking layer may be greater than the length of the opening portion.Type: GrantFiled: June 1, 2020Date of Patent: September 12, 2023Assignee: LG INNOTEK CO., LTD.Inventors: Dong Hyun Lee, Kwang Hyun Ko, Kyoung Soo Ahn
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Patent number: 11755123Abstract: An illuminated keyboard including a backlight module and a key structure is provided. The backlight module includes a reflector, a light guide plate, a light source, and a light shielding plate. The light guide plate is disposed on the reflector, and a surface of the light guide plate facing the reflector has multiple microstructures. The light source is located on a light incident surface side of the light guide plate. The light shielding plate is disposed on the light guide plate. The light shielding plate has a shielding area and a light transmissive area, and the microstructures are correspondingly disposed in the light transmissive area. The key structure has multiple keycaps. In the microstructures correspondingly disposed under one single keycap, peaks of any two microstructures adjacent to each other keep different distances from the surface of the light guide plate facing the reflector.Type: GrantFiled: January 20, 2022Date of Patent: September 12, 2023Assignee: Lite-On Technology CorporationInventor: Chin-Chia Hsu
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Patent number: 11747527Abstract: An optical assembly, comprising:a first optical film; an adhesive layer, wherein the adhesive layer is disposed on the first optical film, wherein the adhesive layer comprises a plurality of light-diffusing particles therein; and a second optical film comprising a plurality of microstructures that are boned to the adhesive layer without penetrating into the adhesive layer.Type: GrantFiled: January 1, 2020Date of Patent: September 5, 2023Assignee: UBRIGHT OPTRONICS CORPORATIONInventors: Hui-Yong Chen, Lung-Pin Hsin, Yi-Long Tyan, Yu-Mei Juan
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Patent number: 11726245Abstract: A partial reflector including a plurality of optical repeat units where each optical repeat unit includes first and second polymer layers is described. A refractive index difference between the first and second polymer layers along a first axis may be Any, a refractive index difference between the first and second polymer layers along an orthogonal second axis may be ?ƒ?, where |???| is at least 0.1 and |?ny| is no more than 0.04. The optical repeat units may have a smallest optical thickness T1 proximate a first side of the optical stack and a largest optical thickness T2 proximate an opposite second side of the optical stack, where (T2?T1)/(T2+T1) is in a range of 0.05 to 0.2, and T2 is at least 350 nm and no more 1250 nm. The partial reflector may be used in a circular polarizer for correcting color shift with view angle in a display.Type: GrantFiled: October 2, 2018Date of Patent: August 15, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Adam D. Haag, Sun-Yong Park, Timothy J. Nevitt, Brianna N. Wheeler, Jody L. Peterson
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Patent number: 11655959Abstract: A light system includes a substrate, one or more light emitting diodes (LEDs) coupled to the substrate, and an optical distribution plate positioned proximate the substrate. The optical distribution plate includes one or more optical structures each corresponding to the one or more LEDs. The one or more optical structures include a first surface that focuses LED light from the corresponding LED in a first orientation, and an opposite second surface that distributes LED light from the LED in a second orientation. The second orientation being substantially orthogonal to the first orientation.Type: GrantFiled: December 23, 2021Date of Patent: May 23, 2023Inventor: Virginia Merriam
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Patent number: 11656496Abstract: A display apparatus including a light source; a display panel; an optical sheet. The light source including a first light source substrate and a second light source substrate spaced apart from the first light source substrate in a width direction. The light source is mounted on the light source module and a width of a region defined by half of a maximum brightness of a light profile of the light source, is set as a full width at half maximum brightness. A distance between a center of the first light source substrate in the width direction and a center of the second light source substrate in the width direction is referred to as a pitch, the full width at half maximum brightness of the light source and the pitch satisfy: 1.0?full width at half maximum brightness/pitch?2.0.Type: GrantFiled: December 6, 2021Date of Patent: May 23, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sungyeol Kim, Kyehoon Lee, Youngmin Lee, Junsung Choi
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Patent number: 11572998Abstract: A vehicle lamp includes a lamp unit which in turn includes a first lamp unit and a second lamp unit each provided with a light transmitting member and is configured to irradiate light emitted from a light emitting element toward a front of the vehicle lamp through the light transmitting member. In each of the first and second lamp units, the light transmitting member includes a direct light controller that directly emits light incident from the light emitting element onto the light transmitting member, toward the front of the vehicle lamp, and a total reflection controller that totally reflects the light and then emits the light toward the front of the vehicle lamp. A total reflection surface of the total reflection controller is divided into a plurality of reflection regions in a circumferential direction around the direct light controller.Type: GrantFiled: March 26, 2020Date of Patent: February 7, 2023Assignee: KOITO MANUFACTURING CO., LTD.Inventor: Akinori Matsumoto
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Patent number: 11506757Abstract: A projection optical system includes: a surface-emitting light source configured to emit light at an intensity in a Gaussian distribution; and an optical element configured to perform uniformization, at least in one direction and in a range of a projection angle, of the intensity of the light emitted from the surface-emitting light source. In the optical element, an incident surface on which the light is incident is sectioned into a plurality of regions having refractive actions different from each other, and among the plurality of regions, at least outermost regions on which outer edge portions, of the light, in the direction in which the uniformization is performed are incident, are planes that are each tilted, from a state of being parallel to a light emitting surface of the surface-emitting light source, to the direction in which the uniformization is performed.Type: GrantFiled: February 16, 2022Date of Patent: November 22, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventor: Kimihiro Murakami
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Patent number: 11506832Abstract: A planar illumination device according to embodiments includes a substrate and a light guide plate. The substrate has a plurality of light sources arranged two-dimensionally. The light guide plate is disposed on a side of the surface of the substrate, the surface having the light sources. The light guide plate has a plurality of through holes disposed in a thickness direction and individually accommodating the light sources, and a pseudo light source. The pseudo light source is disposed such that another pseudo light source is not disposed on a line connecting the center of the pseudo light source and the center of one of the light sources.Type: GrantFiled: December 4, 2019Date of Patent: November 22, 2022Assignee: MINEBEA MITSUMI Inc.Inventors: Takashi Edamitsu, Satoshi Sugawara, Kai Wu, Masao Miyamoto
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Patent number: 11500144Abstract: A light guide plate includes a main body, first stripe structures and second stripe structures. The main body has an optical surface, a light-incident surface and an opposite light-incident surface. The main body has a hole passing through the optical surface, and the optical surface has a first region and a second region which are separated by an imaginary line. The imaginary line intersects the hole. The hole has a first side near the opposite light-incident surface and a second side near the light-incident surface. A portion of each of the first stripe structures is disposed in the first region. The second stripe structures are disposed in the second region. An extending direction of at least one portion of each first stripe structure is vertical to the light-incident surface, and a portion of the second stripe structures extends to the first side of the hole near the opposite light-incident surface.Type: GrantFiled: August 12, 2021Date of Patent: November 15, 2022Assignees: Radiant Opto-Electronics (Suzhou) Co., Ltd., Radiant Opto-Electronics CorporationInventors: Chia-Yin Chang, Po-Chang Huang, Kun-Cheng Lin
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Patent number: 11487154Abstract: Light having high directivity and high uniformity is emitted. A light source apparatus (10) according to the present invention includes: a light emitting body group (11a) in which a plurality of light sources (11) that emit directional light are arranged on one surface; and a first visual field limiting film (12) that is provided on an optical path of the light emitted from the plurality of light sources (11), and outputs light that enters the first visual field limiting film in a first predetermined angular range by homogeneously diffusing the light within the first predetermined angular range.Type: GrantFiled: October 28, 2019Date of Patent: November 1, 2022Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Munekazu Date, Megumi Isogai, Hideaki Kimata
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Patent number: 11480311Abstract: A lighting apparatus includes a plurality of fiber optic panels coupled to respective light sources. The fiber optic panels include a set of optical fibers configured to emit light transversely to the optical axis thereof to form respective illumination regions in the fiber optic panels. A housing is included in the lighting apparatus to have an internal chamber and at least one window formed therein by which the internal chamber is in optical communication with the exterior of the housing. Additionally, an optical system such as a reflector or lens can subtend the light from the distal ends of the fibers within the chamber. Fiber optic panels are optically coupled to the housing assembly to convey light into the internal chamber while the illumination regions extend from the housing to perform a lighting function of an automotive vehicle.Type: GrantFiled: October 22, 2021Date of Patent: October 25, 2022Assignee: Valeo North America, Inc.Inventors: Jon Beauchamp, John Orisich
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Patent number: 11454364Abstract: Disclosed are a lamp for an automobile and an automobile including the lamp. According to one aspect of the present disclosure, provided is a lamp for an automobile, the lamp including: a circuit board; a plurality of light sources provided on a top surface of the circuit board; an optical resin layer provided on the top surface of the circuit board and configured to cover the plurality of light sources; and a fluorescent material layer provided in close contact with a top surface of the optical resin layer. The fluorescent material layer includes: a resin matrix; and fluorescent materials dispersed within the resin matrix.Type: GrantFiled: June 25, 2021Date of Patent: September 27, 2022Assignee: HYUNDAI MOBIS CO., LTD.Inventors: Seok Ho Jeong, Gil Won Han
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Patent number: 11448377Abstract: A vehicle lamp is provided with a projection lens having a lens profile with a rear major surface with a convex curvature and a front surface with a concave curvature. A rear height of the rear major surface is greater than a front height of the front surface. The lamp has a plurality of light sources 36 and a reflector configured to reflect the light emitted from the plurality light of sources towards the projection lens. As the lens profile is swept along a curve length, at least one of the rear convex curvature or the front concave curvature varies. The light output from the front surface of the projection lens is generally uniform along the curve length.Type: GrantFiled: December 9, 2019Date of Patent: September 20, 2022Assignee: NORTH AMERICAN LIGHTING, INC.Inventor: Ashwin Thombre
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Patent number: 11346542Abstract: An electronic device includes a housing, a speaker, control circuitry, a plurality of light-emitting components configured to emit light through an upper housing wall or other housing structure. A lens diffuser layer having lenses overlapping respective light-emitting components, a textured diffuser layer formed from textured coatings on a substrate, and a volume diffuser layer having light-scattering structures in a polymer layer might be included to project light from the light-emitting components. A light-guiding portion of the lens diffuser layer may guide light to a circular peripheral edge to form an illuminated ring visible through the upper housing wall.Type: GrantFiled: May 22, 2020Date of Patent: May 31, 2022Assignee: Apple Inc.Inventors: Janos C. Keresztes, Yu P. Sun, Rong Liu, Chungjae Lee, Ka Ho P. Poon, Brian P. Graves, Jun Qi, Victor H. Yin, Joel C. Yamasaki, Pedro Mari
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Patent number: 11317489Abstract: Electric light sources typically exhibit temporal variations in luminous flux output, commonly referred to as “flicker.” Flicker, or temporal modulation, is known to influence the growth, health and behavior patterns of humans, and is also linked to growth, health and behavior patterns throughout the growth cycle of plants and animals. Control of peak radiant flux emitted by a light source to temporally modulate a light source will allow for the control of plants and animals for sustainable farming including but not limited to horticultural, agricultural, or aquacultural endeavors. The light source allows the transmission of daylight, which is combined with the flicker.Type: GrantFiled: September 17, 2021Date of Patent: April 26, 2022Inventors: Ian Edward Ashdown, Wallace Jay Scott
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Patent number: 11129253Abstract: Electric light sources typically exhibit temporal variations in luminous flux output, commonly referred to as “flicker.” Flicker, or temporal modulation, is known to influence the growth, health and behavior patterns of humans, and is also linked to growth, health and behavior patterns throughout the growth cycle of plants and animals. Control of peak radiant flux emitted by a light source to temporally modulate a light source will allow for the control of plants and animals for sustainable farming including but not limited to horticultural, agricultural, or aquacultural endeavors. The light source allows the transmission of daylight, which is combined with the flicker.Type: GrantFiled: July 11, 2020Date of Patent: September 21, 2021Inventors: Ian Edward Ashdown, Wallace Jay Scott
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Patent number: 11106080Abstract: The present disclosure provides a backlight module, a display device and a driving method thereof. A backlight module of the present disclosure includes a light guide plate having a light-out side and a backlight side; a light source provided at one end of the light guide plate and includes a plurality of light emitting units having at least three different colors; and a light extracting layer comprising a plurality of light extracting gratings arranged in an array distribution on the light-out side or the backlight side for guiding the light to emit perpendicular to the light-out side.Type: GrantFiled: November 26, 2018Date of Patent: August 31, 2021Assignee: BOE TECHNOLOGY GROUP CO, LTD.Inventor: Jifeng Tan
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Patent number: 11003015Abstract: A light guiding layer may be incorporated into an electronic device with multiple displays to create a seamless display surface between the adjacent displays. The light guiding layer may have a first portion that overlaps the active area of a first display panel, a second portion that overlaps the active area of a second, adjacent display panel, and a third portion that overlaps the inactive areas of the first and second display panels. The light guiding layer may redirect light from the active area of each display panel to the region above the inactive areas of the display panels where it is emitted towards the viewer. The light guiding layer therefore effectively hides the border between the two display panels by emitting light in that region. The light guiding layer may include light leakage promotion structures to ensure light is emitted in the border region.Type: GrantFiled: February 26, 2019Date of Patent: May 11, 2021Assignee: Apple Inc.Inventors: Yi Qiao, Jean-Pierre S Guillou, Michael J. Brown, Ming Xu, Tyler R. Kakuda
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Patent number: 10920961Abstract: A lighting unit comprises a mount for rotating a plasma light source within a cylinder of metal gauze that provides a primary Faraday cage for shielding against radio-frequency radiation from the light source. The shielding is extended using a parabolic reflector for the emitted light in combination with a gauze to establish a secondary Faraday shield enclosing the primary cage. The gauze covers a ring that is sealed between the rim of the front open-mouth of the reflector and a slide-in cassette of the lighting unit, and can be of a metallic honeycomb configuration enhancing the operation and light output from the unit.Type: GrantFiled: December 22, 2017Date of Patent: February 16, 2021Assignees: MACHINE SHOP HOLDINGS LTD, GAVO LIGHTING LTD.Inventors: Steve Loible, Rob Gavigan
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Patent number: 10788617Abstract: An outdoor light with diffusing and translucent light panels movably attached to a mounting base electronically coupled to a lighting controller. Each movable panel is positioned adjacent to a light source that is electronically connected to the lighting controller. Each panel is also attached to a heat sink which is adjacent to and in thermal engagement with the light source. In one embodiment, the heat sink is centered on the light panel. The heat sink may be hollowed or wrapped around the light panel for multidirectional light distribution. In other embodiments, the outdoor light includes various sensors and remote-control features electronically coupled to the lighting controller.Type: GrantFiled: August 30, 2019Date of Patent: September 29, 2020Assignee: HeatchCo LLCInventors: Apollo Paul Paredes, Scott Blaise Tylicki, Amer Salihovic
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Patent number: 10775017Abstract: A lighting device includes a plurality of semiconductor light sources, the semiconductor light sources being configured to generate different light radiations; and an optical element arranged downstream of the semiconductor light sources, the optical element including on a side facing away from the semiconductor light sources a structure constituted of truncated pyramids.Type: GrantFiled: January 12, 2017Date of Patent: September 15, 2020Assignee: OSRAM OLED GmbHInventor: Ulrich Streppel
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Patent number: 10761254Abstract: The light-guiding optical system comprises at least one light guide (1) made from an optically transparent material with an associated collimating element (2), and a light unit (3) to emit light rays (10) into the collimating element (2). The light guide (1) comprises on its front side an output surface (12) for the output of light rays (10) conducted by the light guide (1) out of the light guide (1), and on its bottom or top side, a binding surface (11) to bind light rays (10) collimated by the collimating element (2) into the light guide (1).Type: GrantFiled: June 12, 2018Date of Patent: September 1, 2020Assignee: Varroc Lighting Systems, S.R.O.Inventors: Pavel Sousek, Tomas Socha
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Patent number: 10738969Abstract: A light-emitting structure and a light-emitting system with the same are provided. The light-emitting structure includes a plurality of extension portions (10) and a plurality of light adjusting portions (20), and the plurality of extension portions (10) and the plurality of light adjusting portions (20) are sequentially alternately connected; the plurality of extension portions (10) controls the light-emitting range of the light-emitting structure, and the plurality of light adjusting portions (20) is disposed at a predetermined angle with respect to an incident light direction to control a light-emitting direction.Type: GrantFiled: June 29, 2016Date of Patent: August 11, 2020Assignee: SHENZHEN EWINLIGHT TECHNOLOGY CO., LTD.Inventor: Shihao Li
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Patent number: 10725224Abstract: An optical member includes a light guide plate, a first low refractive layer, a wavelength conversion layer, and a passivation layer. The first low refractive layer is disposed on the light guide plate. A refractive index of the first low refractive layer is smaller than a refractive index of the light guide plate. The wavelength conversion layer is disposed on the first low refractive layer. The passivation layer is disposed on the wavelength conversion layer. The passivation layer covers a side surface of the wavelength conversion layer and a side surface of the first low refractive layer on at least one side.Type: GrantFiled: November 3, 2017Date of Patent: July 28, 2020Assignee: Samsung Display Co., Ltd.Inventors: Seong Yong Hwang, Jin Ho Park, Tae Gil Kang, Hyuk Hwan Kim, Sang Won Lee, Jae Jin Choi
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Patent number: 10705374Abstract: An optical member including a light guide plate, a low refractive layer disposed on an upper surface of the light guide plate and having a lower refractive index than the light guide plate, a wavelength conversion layer disposed on the low refractive layer, a passivation layer disposed on the wavelength conversion layer and covering a side surface of the wavelength conversion layer and a side surface of the low refractive layer, and an optical pattern formed on a lower surface of the light guide plate.Type: GrantFiled: January 22, 2018Date of Patent: July 7, 2020Assignee: Samsung Display Co., Ltd.Inventors: Sang Won Lee, Seong Yong Hwang, Tae Gil Kang, Sung Hoon Kim, Eun Guk Lee
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Patent number: 10683985Abstract: A security light having a first and a second light panel is set forth. The light panels includes a plurality of light scattering structures which are V-shaped grooves extending from the top surface to the bottom surface along the height of each of the light panels. The light scattering structures may modify in density as the distance from the light source increases in order to improve the light output performance of the panes.Type: GrantFiled: January 17, 2019Date of Patent: June 16, 2020Assignee: Heathco LLCInventors: Apollo Paul Paredes, Scott Blaise Tylicki, Amer Salihovic
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Patent number: 10684405Abstract: A side-edge type surface light emitting apparatus includes: a light guide plate having a first light emitting surface, a light distribution controlling surface opposing the first light emitting surface and a light incident surface; a light source disposed on the light incident surface; a first prism sheet having multiple first prisms opposing the first light emitting surface and a second light emitting surface opposing the multiple first prisms; a light absorbing sheet opposing the light distribution controlling surface; and a second prism sheet having a flat surface opposing the light distribution controlling surface and multiple second prisms opposing the light absorbing sheet, the multiple second prisms being perpendicular to the light incident surface of the light guide plate.Type: GrantFiled: April 24, 2019Date of Patent: June 16, 2020Assignee: STANLEY ELECTRIC CO., LTD.Inventors: Yoji Oki, Lingwei Goh
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Patent number: 10591135Abstract: A frame has an outer frame made of microcellular foam resin, and two inner frames made of the microcellular foam resin. The two inner frames are arranged together inside the outer frame. Both of the inner frames and the outer frame include openings provided at respective upper portions and recess portions formed downwardly from the openings, respectively. An LED light source, which is arranged inside a light guide space, emits light with a light emitting face thereof directing toward the light guide space. Accordingly, light from the LED light source is uniformly emitted from a light extraction portion. Also, an LED light source arranged inside a light guide space emits light directing toward the light guide space. Accordingly, light from the LED light source is uniformly emitted from a light extraction portion.Type: GrantFiled: March 16, 2018Date of Patent: March 17, 2020Assignees: FURUKAWA ELECTRIC CO., LTD., TOTOKU ELECTRIC CO., LTD.Inventors: Syouta Inoue, Tetsuji Kubota, Syunji Yamamoto, Hisashi Koaizawa, Tomio Kaise
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Patent number: 10578919Abstract: The present disclosure provides a light guide assembly, a fabrication method thereof, a backlight module, and a display device. The light guide assembly includes: a light guide plate having a light exit surface and a back surface opposite to each other, and a side surface contacting the light exit surface and the back surface; a first reflective layer disposed on the light exit surface and having a plurality of light transmissive holes; a diffusion layer disposed on a side of the first reflective layer facing away from the light guide plate. The diffusion layer includes a plate and a plurality of protrusions disposed on the surface of the plate, the plurality of protrusions are in one-to-one correspondence with the plurality of the light transmissive holes, and each light transmissive hole receives a corresponding protrusion.Type: GrantFiled: January 22, 2018Date of Patent: March 3, 2020Assignees: BOE Technology Group Co., Ltd., Ordos Yuansheng Optoelectronics Co., Ltd.Inventors: Ruijun Hao, Wulijibaier Tang, Long Lian, Zhongping Zhao, Yanling Feng, Haifeng Bi, Xintong Fan
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Patent number: 10527249Abstract: A vehicle lamp is provided with a projection lens having a lens profile with a rear major surface with a convex curvature and a front surface with a concave curvature. A rear height of the rear major surface is greater than a front height of the front surface. The lamp has a plurality of light sources 36 and a reflector configured to reflect the light emitted from the plurality light of sources towards the projection lens. As the lens profile is swept along a curve length, at least one of the rear convex curvature or the front concave curvature varies. The light output from the front surface of the projection lens is generally uniform along the curve length.Type: GrantFiled: May 31, 2018Date of Patent: January 7, 2020Assignee: NORTH AMERICAN LIGHTING, INC.Inventor: Ashwin Thombre
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Patent number: 10429018Abstract: A light fixture includes a housing and a light emitting element. The housing includes a lower edge and is configured to be recessed within a surface. The light emitting element is supported in the housing, and the light emitting element includes a planar surface spaced apart from the lower edge of the housing.Type: GrantFiled: January 31, 2018Date of Patent: October 1, 2019Assignee: Hubbell IncorporatedInventors: Martin Werr, Randy Lewis, Dhavalkumar Patel
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Patent number: 10317027Abstract: Side light LED troffer tube. In an aspect, a side light LED tube is provided that includes a tube having at least one light receiving portion configured to receive light and gradient optics formed on the tube. The gradient optics providing a transparency gradient configured to distribute the light to achieve a selected emitted light intensity variation across a selected surface of the tube.Type: GrantFiled: May 22, 2017Date of Patent: June 11, 2019Assignee: BRIDGELUX INC.Inventor: Todd Farmer
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Patent number: 10309594Abstract: A stack light with a light section having a housing with a plurality of at least partially translucent side walls and having a plurality of opposing light sources on longitudinally opposite ends of the housing to produce a very even blended light. A stack light system with one or more such light sections also includes a sound section having a hollow housing and a set of interchangeable acoustic chambers configured for insertion into the hollow housing, each chamber including a piezoelectric transducer and having a side wall structure configured to abut an inner side wall surface of the hollow housing, the chamber, transducer and housing together defining a resonant cavity.Type: GrantFiled: May 1, 2017Date of Patent: June 4, 2019Assignee: Mallory Sonalert Products, Inc.Inventors: Christopher M. Baldwin, Mark T. Monnett
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Patent number: 10302276Abstract: Illumination devices with improved color mixing optics are disclosed herein for mixing the colors produced by a multi-colored LED emitter module to produce uniform color throughout the entire beam angle of the output light beam, along with smoother edges and improved center beam intensity. Embodiments disclosed herein include a unique arrangement of multi-color LEDs within an emitter module, a unique exit lens with different patterns of lenslets on opposing sides of the lens, and other associated optical features that thoroughly mix the different color components, and as such, provide uniform color across the output beam exiting the illumination device. Additional embodiments disclosed herein include a unique arrangement of photodetectors within the primary optics structure of the LED emitter module that ensure the optical feedback system properly measures the light produced by all similarly colored emission LEDs.Type: GrantFiled: July 19, 2017Date of Patent: May 28, 2019Assignee: Lutron Ketra, LLCInventors: Fangxu Dong, Horace C. Ho, David J. Knapp
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Patent number: 10215904Abstract: A backlight module and a display device are provided. The backlight module includes a light guide plate, a light source and a first prism film. The light guide plate includes a main body and plural oblique microstructures. The main body has a light-incident surface and at least one main surface connected to the light-incident surface. The main surface has a first area and a second area. The oblique microstructures are disposed in the first area. Each of the oblique microstructures has a first slope. A light source is disposed adjacent to the light-incident surface. The first prism film is disposed in front of the light guide plate. The first prism film has plural first prism microstructures. Each of the first prism microstructures has a second slope. One of the first slope and the second slope is a positive number, and the other one is a negative number.Type: GrantFiled: May 23, 2017Date of Patent: February 26, 2019Assignees: Radiant Opto-Electronics (Suzhou) Co., Ltd., Radiant Opto-Electronics CorporationInventors: Chin-Ting Weng, Yue-Heng Lee, Chia-Yin Chang
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Patent number: 10185176Abstract: A display device is disclosed. The display device includes a display panel, a frame behind the display panel, a light assembly positioned between the display panel and the frame and providing the display panel with light, and a substrate mounted with the light assembly and positioned in front of the frame. The frame includes a flat portion forming a flat surface and a trench forming a stepped portion together with the flat portion. The substrate is positioned on the trench.Type: GrantFiled: July 3, 2017Date of Patent: January 22, 2019Assignee: LG ELECTRONICS INC.Inventors: Dongsoo Shin, Junho Ko, Yohan Choi
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Patent number: 10180528Abstract: A backlight unit includes a light source for generating light and a light guide plate for guiding the light in an upward direction, a top surface of the light guide plate includes a plurality of first and second lens patterns which extend in a first direction, the first lens pattern and the second lens pattern are alternately arranged in a second direction crossing the first direction, and a width the first lens pattern in the second direction increases gradually from a first width to a second width greater than the first width and then decreases gradually from the second width to the first width repeatedly along the first direction.Type: GrantFiled: August 1, 2017Date of Patent: January 15, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyung-Min Kim, Ho-sik Shin, Hayoung Lee
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Patent number: 10139547Abstract: A composite optical film has the functions of brightness enhancement, self-diffusion and defect blocking. The film comprises: a structured substrate including a structured light incidence surface and a light emitting surface opposite the structured light incidence surface, wherein the structured light incidence surface includes longitudinal prism structures or longitudinal lens structures transversely arranged in rows; a support base plate adjacent to the light emitting surface of the structured substrate, the support base plate having a light incidence surface on one side and a light emitting surface on another side opposite the light incidence surface, wherein at least one of the light incidence surface and the light emitting surface has a plurality of buried particles, and at least one portions of the buried particles are protruded on the light emitting surface of the support base plate.Type: GrantFiled: November 17, 2016Date of Patent: November 27, 2018Assignee: UBright Optronics CorporationInventors: Yi-Long Tyan, Chi-Chen Liu, Lung-Pin Hsin, Hui-Yong Chen
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Patent number: 10119672Abstract: A fiber optic lighting module is disclosed that includes a set of fiber optic light panels wherein the optical fibers extending from a first fiber panel are interwoven with the optical fibers extending from a second fiber panel.Type: GrantFiled: October 27, 2016Date of Patent: November 6, 2018Assignee: VALEO NORTH AMERICA, INC.Inventor: Patton Davis Baker
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Patent number: 10101519Abstract: A lighting assembly for a vehicle instrument panel includes a light guide supported within a light housing proximate to a light source. The light guide includes a top surface with a plurality of prisms for efficiently transmitting light toward a display and operator. The light guide may be coupled to a diffuser with a plurality of serrations that include a light reflecting surface for directing light from the light guide in a direction toward an operator.Type: GrantFiled: September 24, 2014Date of Patent: October 16, 2018Assignee: Continental Automotive Systems, Inc.Inventors: Vyacheslav Borisovich Birman, Richard Daniel Sanders
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Patent number: 10036845Abstract: A curved display device includes a backlight unit which generates light and a display panel which receives the generated light from the backlight unit. The backlight unit includes a light guide plate and is curved. The display panel is disposed on the curved backlight unit and is curved. The curved light guide plate defines a light incident surface thereof and an opposite surface. The light incident surface receives the light generated by the curved backlight unit. The opposite surface faces the light incident surface. A thickness of the curved light guide plate decreases from the light incident surface to the opposite surface.Type: GrantFiled: February 18, 2016Date of Patent: July 31, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Juhwa Ha, Taeyong Ryu, Jaesuk Yoo, Sangwon Lee, Sijoon Song, Sangho Hwang
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Patent number: 9964692Abstract: Aspects of this invention relate to a system that provides an illuminated feature for an LED luminaire that can be used with opposite linear runs of LEDs to light the edges or sides of a luminaire without requiring additional LEDs.Type: GrantFiled: October 6, 2015Date of Patent: May 8, 2018Assignee: Focal Point, LLCInventors: Michael David SanFacon, Michael Scott Garner, Krutin S. Desai, Ken Czech
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Patent number: 9951921Abstract: A vehicle taillight system being capable of representing various situations occurring upon driving a vehicle is provided. The vehicle taillight system includes: first and second taillights mounted at the rear of a vehicle; a plurality of light sources installed at each of the first and second taillights; and a controller connected to the first and second taillights and that controls the plurality of light sources to together or individually operate and that controls to output driving information of the vehicle to the outside of the vehicle through the first and second taillights. Therefore, because a driver's intention expression can be more clearly represented, various safety accidents can be beforehand prevented.Type: GrantFiled: August 26, 2016Date of Patent: April 24, 2018Inventor: Se-Ho Oh