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41. 发明公开

EP4307031A3 GENERATING A VIRTUAL CONTENT DISPLAY 审中-实审
公开(公告)号：EP4307031A3
公开(公告)日：2024-03-20
申请号：EP23212623.5
申请日：2017-10-04
申请人： Molecular Imprints, Inc.
发明人： LUO, Kang , SINGH, Vikramjit , XU, Frank Y.
IPC分类号： G02B27/44 , G02B5/18 , G02B6/10 , G02B27/42 , G02B27/09
摘要： A method of generating a virtual image, including directing a light beam to a first side of an eyepiece, including transmitting the light beam into a first waveguide of the eyepiece; deflecting, by first diffractive elements of the first waveguide, a first portion of the light beam towards a second waveguide of the eyepiece, the first portion of the light beam associated with a first phase of light; deflecting, by protrusions on the first side of the eyepiece, a second portion of the light beam towards the second waveguide, the second portion of the light beam associated with a second phase of light differing from the first phase; and deflecting, by second diffractive elements of the second waveguide, some of the first and the second portions of the light beam to provide an exiting light beam associated with the virtual image that is based on the first and second phases.

42. 发明授权

EP3650748B1 BACKLIGHT UNIT AND HOLOGRAPHIC DISPLAY APPARATUS INCLUDING THE SAME 有权
公开(公告)号：EP3650748B1
公开(公告)日：2024-02-21
申请号：EP19185451.2
申请日：2019-07-10
发明人： Choi, Chilsung , Song, Hoon , An, Jungkwuen , Lee, Changkun , Lee, Hongseok
IPC分类号： G02B17/00 , G03H1/22 , F21V8/00 , G02B5/18 , G02B27/09 , G02F1/13

43. 发明授权

EP3446173B1 DISPLAY WITH A WAVEGUIDE COATED WITH A META-MATERIAL 有权转让
公开(公告)号：EP3446173B1
公开(公告)日：2024-02-21
申请号：EP17717848.0
申请日：2017-04-10
发明人： SIMMONDS, Michael David
IPC分类号： G02B27/01 , G02B5/18 , G02B1/00

44. 发明公开

EP4314956A1 SYSTEM AND METHOD FOR FABRICATING LIQUID CRYSTAL POLARIZATION HOLOGRAMS 无效
公开(公告)号：EP4314956A1
公开(公告)日：2024-02-07
申请号：EP22723495.2
申请日：2022-03-28
申请人： META PLATFORMS TECHNOLOGIES, LLC
发明人： LEE, Yun-Han , WANG, Mengfei , CHOI, Stephen , LU, Lu , TU, Xingzhou
IPC分类号： G03H1/02 , G02B5/18 , G02B5/30 , G03H1/04

45. 发明公开

EP4305472A1 DISPERSIVE OPTICAL ELEMENTS, DEVICES, SYSTEMS AND METHODS USING THE SAME 审中-实审
公开(公告)号：EP4305472A1
公开(公告)日：2024-01-17
申请号：EP22767807.5
申请日：2022-03-08
申请人： Battelle Memorial Institute
发明人： RISSER, Steven M. , HIGGINS, Richard J. , GLUCK, Jonathan A. , THORNTON, Douglas A. , RIDGWAY, Richard W.
IPC分类号： G02B5/02 , F21V9/08 , G02B5/18 , G02B6/00 , H01L33/50

46. 发明公开

EP4300142A1 DUAL SIDED EXPANSION WAVEGUIDE 审中-实审
公开(公告)号：EP4300142A1
公开(公告)日：2024-01-03
申请号：EP23179725.9
申请日：2023-06-16
申请人： Rockwell Collins, Inc.
发明人： STRATTON, Eric P. , BROWN, Robert D.
IPC分类号： G02B5/18 , G02B27/00 , G02B27/01
摘要： An optical display (100) includes a waveguide (102) comprising an input coupler (104), first expansion grating (110), second expansion grating (112), and output coupler (106). The input coupler is configured to couple image light (200) from an image source (10). The first expansion grating is configured to receive the image light, expand the image light along a first axis and away from a first direction at a first angle of expansion, and direct the image light out of the first expansion grating in a second direction different than the first direction. The second expansion grating is configured to receive the image light, to expand the image light along the first axis and towards the first direction at a second angle of expansion, and direct the image light out of the first expansion grating in the second direction.

47. 发明公开

EP4249965A3 DISPLAY SYSTEM WITH OPTICAL ELEMENTS FOR IN-COUPLING MULTIPLEXED LIGHT STREAMS 审中-实审
公开(公告)号：EP4249965A3
公开(公告)日：2023-12-27
申请号：EP23190001.0
申请日：2016-06-14
申请人： Magic Leap, Inc.
发明人： KLUG, Michael Anthony , SCHOWENGERDT, Brian T. , MILLER, Michael Nevin , SINGH, Vikramjit , PEROZ, Christophe , ST HILAIRE, Pierre , SUN, Jie
IPC分类号： G02B1/00 , G02B27/01 , G02B5/18 , G02B6/00 , G02B26/10 , G02B27/00 , G02B27/10 , G02B27/28 , G02B27/42 , G02F1/13 , F21V8/00
摘要： A display system comprising a plurality of waveguides (3002, 3004, 3006, 3008) forming a stack of waveguides (3000); and an image injection device (3021) configured to direct a multiplexed light stream (3040) into the waveguides (3002, 3004, 3006, 3008), the multiplexed light stream (3040) comprising a plurality of light streams, wherein at least one of the light streams differs in at least one light property from at least one other of the light streams, wherein the plurality of waveguides (3002, 3004, 3006, 3008) comprises a first waveguide (3002) comprising one or more first in-coupling optical elements (3012) configured to selectively in-couple a first light stream of the plurality of light streams while being transmissive to one or more other light streams of the plurality of light streams, and wherein the one or more first in-coupling optical elements (3012) include a first metasurface.

48. 发明授权

EP3923043B1 OPTICAL STRUCTURE AND ARTIFACT REDUCTION METHOD 有权
公开(公告)号：EP3923043B1
公开(公告)日：2023-12-27
申请号：EP20752379.6
申请日：2020-02-04
发明人： MITSUI, Kazunari , SHINODA, Koichi
IPC分类号： B42D25/324 , B42D25/328 , G02B5/18

49. 发明授权

EP3819929B1 PLASMA ETCHING METHOD USING FARADAY BOX 有权
公开(公告)号：EP3819929B1
公开(公告)日：2023-12-27
申请号：EP19881534.2
申请日：2019-11-04
发明人： HER, Eun Kyu , PARK, Jeong Ho , PARK, Seong Min , HAN, Sang Choll , SHIN, Bu Gon
IPC分类号： H01J37/32 , H01L21/3065 , H01L21/311 , G02B5/18

50. 发明公开

EP4279962A1 GRATING, OPTICAL DEVICE AND AUGMENTED REALITY DISPLAY APPARATUS 审中-实审
公开(公告)号：EP4279962A1
公开(公告)日：2023-11-22
申请号：EP22752074.9
申请日：2022-01-13
申请人： GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
发明人： ZHENG, Guang
IPC分类号： G02B5/18 , G02B27/01 , G02B27/42
摘要： A grating (110), an optical device (10), and an augmented reality (AR) display device (1). The grating (110) at least includes a first grating layer (111) and a second grating layer (113). The first grating layer (111) includes first grating portions (1111) and second grating portions (1112) that are alternately arranged at regular intervals. A refractive index of each of the first grating portions (1111) is greater than a refractive index of each of the second grating portions (1112). A cross-sectional shape of each of the first grating portions (1111) is a first trapezoid. The second grating layer (113) is disposed at one side of the first grating layer (111). The second grating layer (113) includes third grating portions (1131) and fourth grating portions (1132) that are alternately arranged at regular intervals. A refractive index of each of the third grating portions (1131) is greater than a refractive index of each of the fourth grating portions (1132). At least part of each of the third grating portions (1131) is aligned with each of the first grating portions (1111). A cross-sectional shape of each of the third grating portions (1131) is a second trapezoid. A long base of the second trapezoid is away from the first grating portions (1111). The grating (110) can reduce or even eliminate a rainbow effect.

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