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51 records (took 0.018 seconds)

    Shadow-matched Fresnel lens doublet for reduced optical artifacts
    31.
    发明授权
    Shadow-matched Fresnel lens doublet for reduced optical artifacts 有权

    公开(公告)号：US11454747B1

    公开(公告)日：2022-09-27

    申请号：US16780731

    申请日：2020-02-03

    Applicant: META PLATFORMS TECHNOLOGIES, LLC

    Inventor： Brian Wheelwright ,  Jacques Gollier

    IPC: G02B3/08 ,  G02B3/10

    Abstract: A lens assembly includes a first lens and a second lens. The first lens has a first lens surface and a second lens surface opposite to the first lens surface. The second lens surface includes a first plurality of Fresnel structures. The second lens, coupled to the first lens, has a third lens surface and a fourth lens surface opposite to the third lens surface. The third lens surface includes a second plurality of Fresnel structures. The third lens surface faces the first lens and the second lens surface faces the second lens. A headset that includes a display and the lens assembly is also disclosed. A method of transmitting, with the lens assembly, light from the display toward an image plane is also disclosed.

    Patterned light illuminator for a display panel
    34.
    发明授权
    Patterned light illuminator for a display panel 有权

    公开(公告)号：US12204107B2

    公开(公告)日：2025-01-21

    申请号：US17553635

    申请日：2021-12-16

    Applicant: Meta Platforms Technologies, LLC

    Inventor： Fenglin Peng ,  Jacques Gollier ,  Liangyu Qiu ,  Xingzhou Tu ,  Ying Geng

    IPC: G02B27/01 ,  G02B26/08 ,  G02B27/09

    Abstract: An illuminator for a display panel includes a slab of transparent material for propagating illuminating light between outer surfaces of the slab, an out-coupling grating supported by the slab for out-coupling portions of the illuminating light along one of the outer surfaces of the slab, and an amplitude and/or phase mask for forming an array of light spots from the out-coupled illuminating light portions downstream of the focusing element for illuminating pixels of the display panel. The array of light spots may be repeated at a distance from the mask due to Talbot effect. A beam redirecting element such as a tiltable reflector and/or a steering surface may be provided to shift the lateral location of the illuminating light spots.

    Accommodation adjustable and magnification corrective optical system
    39.
    发明授权
    Accommodation adjustable and magnification corrective optical system 有权

    公开(公告)号：US11726328B2

    公开(公告)日：2023-08-15

    申请号：US17112342

    申请日：2020-12-04

    Applicant: Meta Platforms Technologies, LLC

    Inventor： Marina Zannoli ,  Jacques Gollier

    IPC: G02B27/01 ,  G02B3/14

    CPC classification number: G02B27/0172 ,  G02B3/14 ,  G02B2027/011

    Abstract: The disclosure describes artificial reality (AR) systems and techniques that enable a change in focus of virtual image content without substantially changing magnification of real-world content. For example, an AR system includes a virtual image content output device, a first tunable lens on a real-world side of the virtual image content output device, a second tunable lens on an eye side of the virtual image content output device, and at least one compensating lens. The at least one compensating lens is configured to substantially eliminate magnification changes of real-world light between a real-world end of the optical system and an eye-side end of the optical system as a focal power of at least one of the first tunable lens or the second tunable lens changes.

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