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公开(公告)号：WO2020205101A1
公开(公告)日：2020-10-08
申请号：PCT/US2020/020064
申请日：2020-02-27
Applicant: APPLE INC.
Inventor： DELAPP, Scott, M. , BHAKTA, Vikrant , CHOI, Hyungryul
IPC: G02B27/01
Abstract: An electronic device may include a light source that emits light, A holographic angular filter may transmit a first portion of the light while diffracting a second portion of the light towards a light sink. A prism may receive the first portion and may direct the first portion towards a spatial light modulator. The spatial light modulator may reflect the first portion towards projection optics as image light. The projection optics may direct the image light towards an eye box. The first portion may be incident upon the prism at relatively low incident angles. The second portion may be incident upon the prism at relatively high incident angles. The holographic angular filter may mitigate propagation of stray light into the projection optics, thereby maximizing a contrast ratio of the image light at the eye box while occupying less volume within the device than other light baffling techniques.
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公开(公告)号：WO2021158566A2
公开(公告)日：2021-08-12
申请号：PCT/US2021/016248
申请日：2021-02-02
Applicant: APPLE INC.
Inventor： BHAKTA, Vikrant , COCILOVO, Byron R. , PENG, Guolin , CHOI, Hyungryul , DELAPP, Scott M. , OH, Se Baek
IPC: G02B27/01 , G02B5/20 , G02B2027/012 , G02B2027/0174 , G02B27/0172 , G02B5/203 , G02B5/22 , G02B5/26 , G02B5/32 , G02B6/0016 , G02B6/0023 , G02B6/0026 , G02B6/0035
Abstract: An electronic device may include an emissive display panel that emits light. The light may propagate along an optical path extending to an eye box. A waveguide with an input, coupler and an output coupler may be interposed on the optical path. An angle-selective transmission filter (ASTF) may be interposed on the optical path and may filter the emitted light as a function of angle to remove high-angle light from the optical path before the light is provided to the output coupler. The ASTF may include diffractive grating structures such as thin-film holograms, volume holograms, or surface, relief gratings, louvered mirrors, multi-layer coatings, or a pinhole array. This ASTF may serve to minimize stray light within the display, thereby optimizing the contrast and the modulation transfer function (MTF) of the display.
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公开(公告)号：WO2020005507A1
公开(公告)日：2020-01-02
申请号：PCT/US2019/036168
申请日：2019-06-07
Applicant: APPLE INC.
Inventor： BHAKTA, Vikrant , CHOI, Hyungryul , PENG, Guolin , DELAPP, Scott M.
Abstract: An electronic device may have a spatial light modulator. Control circuitry in the electronic device may use the spatial light modulator to generate images. A light source may be used to produce illumination for the spatial light modulator. An optical system may direct the illumination onto the spatial light modulator and may direct corresponding reflected image light towards eye boxes for viewing by a user. Head-mounted support structures may be used to support the spatial light modulator, light source, and optical system. The light source may include light-emitting elements such as light-emitting diodes or lasers. Multiple light-emitting elements may be provided in the light source in a one-dimensional or two- dimensional array. During operation, the control circuitry can individually adjust the light- emitting elements.
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公开(公告)号：EP3938835A2
公开(公告)日：2022-01-19
申请号：EP20780864.3
申请日：2020-09-14
Applicant: Apple Inc.
Inventor： BHAKTA, Vikrant , PENG, Guolin , CHOI, Hyungryul , KEILBACH, Kevin A. , DELAPP, Scott M.
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公开(公告)号：EP4310579A1
公开(公告)日：2024-01-24
申请号：EP23187064.3
申请日：2023-07-21
Applicant: Apple Inc.
Inventor： OUDENHOVEN, Michael J. , LAU, Brian S. , HARDER, Cameron A. , WANG, Depeng , BHAKTA, Vikrant
IPC: G02B27/01
Abstract: A head-mounted device (10) may have a housing (12) with a frame (12F) that supports lenses. Each lens may have a positive bias lens element and a negative bias lens element (16N). A waveguide may overlap the lens. During operation, images from the waveguide may be provided to an eye box (20) through the negative bias lens element. An eye sensor such as a gaze tracking camera (32) may operate through the negative bias lens element (16N). The negative bias lens element may have a protruding portion (38) through which the sensor operates, may have a surface (36) facing the sensor that has a curved surface to provide a desired lens characteristic, may have a prism (40) for helping to couple light from the eye box (20) to the eye sensor, and/or may have other features to facilitate use of the eye sensor to monitor the eye of a user in the eye box (20).
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Patent Agency Ranking
公开(公告)号：EP4463735A2
公开(公告)日：2024-11-20
申请号：EP23725928.8
申请日：2023-01-05
Applicant: Apple Inc.
Inventor： ZHANG, Runyu , CHOI, Hyungryul , WEN, Xiaonan , BHAKTA, Vikrant , HARDER, Cameron A , GE, Zhenbin , ZHAO, Xianwei
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公开(公告)号：EP4377736A1
公开(公告)日：2024-06-05
申请号：EP22772689.0
申请日：2022-08-23
Applicant: Apple Inc.
Inventor： DELAPP, Scott M , BHAKTA, Vikrant , HU, Di , PENG, Guolin , KASAR, Darshan R , RAFF, John
IPC: G02B27/01
CPC classification number: G02B2027/010520130101 , G02B2027/017420130101 , G02B27/0172
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公开(公告)号：EP4252063A2
公开(公告)日：2023-10-04
申请号：EP21844826.4
申请日：2021-11-23
Applicant: Apple Inc.
Inventor： DELAPP, Scott M. , BHAKTA, Vikrant , CHOI, Hyungryul , PENG, Guolin , HU, Di
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公开(公告)号：EP4252062A1
公开(公告)日：2023-10-04
申请号：EP21827767.1
申请日：2021-11-23
Applicant: Apple Inc.
Inventor： CHOI, Hyungryul , BHAKTA, Vikrant
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公开(公告)号：EP4085290A2
公开(公告)日：2022-11-09
申请号：EP21709185.9
申请日：2021-02-02
Applicant: Apple Inc.
Inventor： BHAKTA, Vikrant , COCILOVO, Byron R. , PENG, Guolin , CHOI, Hyungryul , DELAPP, Scott M. , OH, Se Baek
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