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1.发明授权公开(公告)号：US11921292B2
公开(公告)日：2024-03-05
申请号：US17517290
申请日：2021-11-02
申请人： GOOGLE LLC
CPC分类号： G02B27/0172 , G02B6/00 , G02B6/0013 , G02B6/0033 , G02B27/0081 , G02B27/0176 , G02B27/0179 , G02B2027/015 , G02B2027/0174 , G02B2027/0178 , G02B2027/0187
摘要： Systems, devices, and methods for eyebox expansion in wearable heads-up displays (“WHUDs”) are described. The WHUDs described herein each include a projector and an optical waveguide positioned in an optical path between the projector and an eye of the user. For any given light signal from the projector, the optical waveguide receives the light signal at an input coupler and outputs multiple instances or copies of the light signal from multiple discrete, spatially-separated output couplers. The multiple instances or copies of the light signal may be converged by the optical waveguide directly to respective exit pupils at the user's eye or may be routed by the optical waveguide to a holographic combiner in the user's field of view from which the light signals may be converged to respective exit pupils at the user's eye. The optical waveguide employs exit pupil replication to expand the eyebox of the WHUD.
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公开(公告)号：US20240069270A1
公开(公告)日：2024-02-29
申请号：US18456271
申请日：2023-08-25
申请人： NICHIA CORPORATION
发明人： Yukihiro MIURA , Ryohei YAMASHITA
IPC分类号： F21V8/00
CPC分类号： G02B6/0091 , G02B6/0013
摘要： A planar light source includes a first substrate including a first part and a second part; a light source located at an upper surface side of the first part; a light guide member located at the upper surface side of the first part; and a circuit member overlapping the light guide member in a direction parallel to an upper surface of the first part. The circuit member includes a second substrate located at an upper surface side or a lower surface side of the second part, and an electronic element located on the second substrate.
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公开(公告)号：US11789198B2
公开(公告)日：2023-10-17
申请号：US17583079
申请日：2022-01-24
申请人： Magic Leap, Inc.
CPC分类号： G02B6/0076 , G02B6/00 , G02B6/005 , G02B6/0013 , G02B6/0026 , G02B6/0031 , G02B6/0065 , G02B6/29316 , G02B27/0172 , G02B5/1823 , G02B6/1226 , G02B2027/0134
摘要： A display system comprises a waveguide having light incoupling or light outcoupling optical elements formed of a metasurface. The metasurface is a multilevel (e.g., bi-level) structure having a first level defined by spaced apart protrusions formed of a first optically transmissive material and a second optically transmissive material between the protrusions. The metasurface also includes a second level formed by the second optically transmissive material. The protrusions on the first level may be patterned by nanoimprinting the first optically transmissive material, and the second optically transmissive material may be deposited over and between the patterned protrusions. The widths of the protrusions and the spacing between the protrusions may be selected to diffract light, and a pitch of the protrusions may be 10-600 nm.
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公开(公告)号：US11665835B2
公开(公告)日：2023-05-30
申请号：US16670100
申请日：2019-10-31
申请人： Dell Products L.P.
发明人： Guentaek Oh , Kyung Eun Lee
CPC分类号： H05K5/0017 , G02B6/0013 , G02B6/0081 , H05K5/03
摘要： Systems and methods are disclosed for a light cover that may include a blocking portion configured to block a light emitted from a light-emitting diode, the blocking portion having a first shape associated with a heated state in which the blocking portion extends vertically in parallel with a lower portion of an optical sheet, the first shape configured to minimize a gap between the lower portion of the optical sheet and the blocking portion; a mounting portion configured to contact a bottom portion of a cover bottom of the display, the mounting portion extending orthogonally from the blocking portion; and a plurality of mounting pegs disposed on interior portions of the mounting portion, each of the plurality of mounting pegs configured to removably couple the mounting portion of the light cover to the bottom portion of the cover bottom.
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公开(公告)号：US09983340B2
公开(公告)日：2018-05-29
申请号：US15488157
申请日：2017-04-14
申请人： Rambus Delaware LLC
CPC分类号： G02B6/0013 , A61B2090/309 , F21V5/00 , G02B6/0018 , G02B6/002 , G02B6/0021 , G02B6/0028 , G02B6/0031 , G02B6/0036 , G02B6/0038 , G02B6/0043 , G02B6/006 , G02B6/0061 , G02B6/0068 , G02B6/0073 , G09F13/18 , G09F2013/1804 , H01H2219/062 , H01H2221/07 , Y10S362/812
摘要： An optical assembly includes a light emitting panel member having opposite sides and at least one input edge for receiving light from at least one light source, and a pattern of individual optical deformities on or in at least one of the sides for producing a light output distribution from a light emitting surface area of the panel member. Different sets of the optical deformities within the pattern each having at least one surface that is shaped or oriented to extract light propagating through the panel member in respective different directions from multiple regions of the light emitting surface area of the panel member.
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公开(公告)号：US20170356615A1
公开(公告)日：2017-12-14
申请号：US15346313
申请日：2016-11-08
发明人： Kyung Gu MIN
CPC分类号： G02B6/0073 , F21S43/14 , F21S43/19 , F21S43/195 , F21S43/237 , F21S43/245 , F21S43/247 , F21S43/27 , G02B6/0006 , G02B6/001 , G02B6/0013 , G02B6/0033 , G02B6/0096
摘要： Disclosed is a lighting device of a vehicle capable of achieving an enhancement in luminous efficacy. The disclosed lighting device includes a light source for generating light, a light guide including a light emitting portion formed with first patterns arranged in a longitudinal direction of the light emitting portion, to guide the light, the light emitting portion performing light emission using the light, and a light receiving portion to receive the light generated by the light source, and a back cover, on which the light guide is mounted. The back cover is formed with second patterns arranged in a longitudinal direction of the back cover at a portion of the back cover, on which the light receiving portion is mounted. The first patterns are formed to have a greater width with increasing distance from the light source. The second patterns are formed to have the same width.
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公开(公告)号：US20170343720A1
公开(公告)日：2017-11-30
申请号：US15488157
申请日：2017-04-14
申请人： Rambus Delaware LLC
CPC分类号： G02B6/0013 , A61B2090/309 , F21V5/00 , G02B6/0018 , G02B6/002 , G02B6/0021 , G02B6/0028 , G02B6/0031 , G02B6/0036 , G02B6/0038 , G02B6/0043 , G02B6/006 , G02B6/0061 , G02B6/0068 , G02B6/0073 , G09F13/18 , G09F2013/1804 , H01H2219/062 , H01H2221/07 , Y10S362/812
摘要： An optical assembly includes a light emitting panel member having opposite sides and at least one input edge for receiving light from at least one light source, and a pattern of individual optical deformities on or in at least one of the sides for producing a light output distribution from a light emitting surface area of the panel member. Different sets of the optical deformities within the pattern each having at least one surface that is shaped or oriented to extract light propagating through the panel member in respective different directions from multiple regions of the light emitting surface area of the panel member.
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公开(公告)号：US09696478B2
公开(公告)日：2017-07-04
申请号：US14808085
申请日：2015-07-24
申请人： IMEC VZW , Universiteit Gent
发明人： Wim Bogaerts
CPC分类号： G02B6/0013 , G02B6/0016 , G02B6/1228 , G02B6/124 , G02B6/29308 , G02B6/29316 , G02B6/305
摘要： An optical device is provided for coupling an external optical signal into a plurality of on-chip photonic sub-circuits provided on a substrate. The optical device comprises: a planar waveguide layer on the substrate; a diverging grating coupler configured to couple the external optical signal to the planar waveguide layer and to thereby create an on-chip diverging optical beam in the planar waveguide layer; and a plurality of channel waveguides formed in the waveguide layer. Each channel waveguide of the plurality of channel waveguides comprises a waveguide transition structure having a waveguide aperture oriented towards the diverging grating coupler. For each channel waveguide of the plurality of channel waveguides the position and the width of the corresponding waveguide aperture and the angle and the shape of the waveguide transition structure are individually selected to capture a predetermined portion of the on-chip diverging optical beam.
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公开(公告)号：US20170162135A1
公开(公告)日：2017-06-08
申请号：US15437424
申请日：2017-02-20
发明人： Jui-Lin CHEN
IPC分类号： G02F1/1335
CPC分类号： G02B6/0021 , G02B6/0013 , G02B6/002 , G02B6/0055 , G02B6/0083 , G02B6/0088 , G02B6/009 , G02F1/133308 , G02F1/133512 , G02F1/133524 , G02F1/133615 , G02F2001/133314 , G02F2202/28 , H05K999/99
摘要： A light guide assembly, a backlight module and a liquid crystal display (LCD) are provided. The backlight module includes a back plate, light guide plate, an adhesive member and a light source. The light guide plate is disposed on the back plate and includes a first optical surface, a second optical surface and a light-incident surface. The first optical surface is opposite to the second optical surface. The light-incident surface connects the first optical surface and the second optical surface. The first optical surface or the second optical surface of the light guide plate is set with a recess. The adhesive member is disposed in the recess to adhere the light guide plate to the back plate. The light source is disposed on the back plate and emits light toward the light guide plate.
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10.发明授权公开(公告)号：US09500331B2
公开(公告)日：2016-11-22
申请号：US14598864
申请日：2015-01-16
发明人： Gang Liu , Shuyong He , Zungan Ling
IPC分类号： F21S8/00 , G02F1/1335 , F21V7/22 , F21V13/10 , F21V8/00
CPC分类号： F21S8/00 , F21V7/22 , F21V13/10 , G02B6/0011 , G02B6/0013 , G02F1/133605 , G02F1/133608 , G02F1/133611 , G02F1/133615
摘要： The present invention provides a light compensator, a shading tape, a backlight module and a display device. The light compensator comprises a first surface on which at least one recess is provided, wherein, when the light compensator is arranged above an edge of an optical element, the first surface faces a light-exiting surface of the optical element, and a surface of the recess is capable of converging light irradiating thereon and reflecting the light toward an area with low luminance on the light-exiting surface of the optical element. The above light compensator can perform light compensation on areas with low luminance on the light-exiting surface of the optical element, enhance the luminance of the areas with low luminance on the light-exiting surface of the optical element, and achieve luminance uniformity of respective areas on the light-exiting surface of the optical element.
摘要翻译： 本发明提供一种光补偿器，遮光带，背光模块和显示装置。 光补偿器包括第一表面，其上设置有至少一个凹部，其中当光补偿器布置在光学元件的边缘上方时，第一表面面向光学元件的光出射表面， 凹部能够会聚照射在其上的光并将光朝着光学元件的光出射面上的低亮度区域反射。 上述光补偿器可以在光学元件的光出射表面上对亮度低的区域进行光补偿，增强光学元件的光出射表面上的亮度低的区域的亮度，并实现各光源的亮度均匀性 在光学元件的光出射表面上的区域。
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