知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

400 条记录 (耗时 0.026 秒)

    Structure light module using vertical cavity surface emitting laser array and folding optical element
    12.
    发明授权
    Structure light module using vertical cavity surface emitting laser array and folding optical element 有权

    公开(公告)号：US11280988B2

    公开(公告)日：2022-03-22

    申请号：US16120966

    申请日：2018-09-04

    申请人： OmniVision Technologies, Inc.

    发明人： Wei-Ping Chen ,  Tsung-Wei Wan ,  Jau-Jan Deng

    IPC分类号： G02B17/02 ,  G02B27/42 ,  H01S5/42 ,  H01S5/00 ,  G03B35/00

    摘要： A structure light module comprises: a VCSEL substrate comprising a VCSEL array comprising a plurality of individual VCSELs; a first spacer disposed on the VCSEL substrate; a first wafer level lens comprising a glass substrate and at least a replicated lens on a first surface of the glass substrate disposed on the first spacer; a FOE disposed on the first wafer level lens; a second spacer disposes on the FOE; a second wafer level lens comprising a glass substrate and at least a replicated lens on a first surface of the glass substrate disposed on the second spacer; a third spacer disposed on the second wafer level lens; a DOE disposed on the third spacer, where a structure light is projected from the DOE on a target surface for 3D imaging.

    VIEW REDIRECTING SYSTEM
    13.
    发明申请
    VIEW REDIRECTING SYSTEM 有权

    公开(公告)号：US20220057613A1

    公开(公告)日：2022-02-24

    申请号：US17000335

    申请日：2020-08-23

    申请人： JOHN POSTON

    发明人： JOHN POSTON

    IPC分类号： G02B17/02 ,  G02B17/00 ,  G02B7/182 ,  H04N5/225

    摘要： A view redirecting system for use on a mobility device to redirect a user's view to a more favorable orientation is disclosed. One embodiment includes a first structure having a convex first reflective surface, a second structure having a flat second reflective surface and a third structure. The third structure being an adjustable structure and configured for connecting said first and second structures together. The first structure and the second structure are configured to be positioned such that the first reflective surface and the second reflective surface are facing each other at angle up to and including ninety degrees. The third structure configured to maintain the angle. The system is arranged to redirect a user's view from a first line-of-sight to a second line-of-sight by light interacting with the reflective surfaces. The system being configured for attachment to a structural member of the mobility device.

    LOW-OBLIQUITY BEAM SCANNER WITH REFLECTIVE POLARIZER
    17.
    发明申请
    LOW-OBLIQUITY BEAM SCANNER WITH REFLECTIVE POLARIZER 有权

    公开(公告)号：US20210072542A1

    公开(公告)日：2021-03-11

    申请号：US16562878

    申请日：2019-09-06

    申请人： Facebook Technologies, LLC

    发明人： Brian Wheelwright ,  Weichuan Gao ,  Stephen James McNally

    IPC分类号： G02B27/01 ,  G02B26/10 ,  G02B27/28 ,  G02B17/02

    摘要： A beam scanner of a projector-based near-eye display includes a prismatic element with a reflective polarizer and a quarter-wave waveplate (QWP). The beam-folding prismatic element receives a polarized light beam from a light source and couples the beam to a tiltable reflector, e.g. a 2D tiltable MEMS reflector, for angular scanning the beam. The light beam impinging onto the tiltable reflector is separated from the light beam reflected from the tiltable reflector by polarization. The polarization-based separation is achieved by causing the light beam to propagate through the QWP before and after impinging onto the tiltable reflector. Upon double propagation of the light beam through the QWP, the beam changes its polarization to an orthogonal polarization, which enables its separation from the impinging beam. The beam scanner may receive multiple light beams from multiple light sources. A projector and a near-eye display based on such beam scanners are also disclosed.

    SMALL FORM FACTOR 4-MIRROR BASED IMAGING SYSTEMS
    18.
    发明申请
    SMALL FORM FACTOR 4-MIRROR BASED IMAGING SYSTEMS 有权

    公开(公告)号：US20210041678A1

    公开(公告)日：2021-02-11

    申请号：US16989635

    申请日：2020-08-10

    申请人： Youngwan Choi

    发明人： Youngwan Choi

    IPC分类号： G02B17/06 ,  G02B17/02

    摘要： An all-reflective optical system is described including a concave primary mirror having a central aperture and a radius, the primary mirror having one of a parabolic, non-parabolic conical, or aspherical surface, a convex secondary mirror facing the primary mirror, the secondary mirror having an aspherical surface, where an optical axis extends from a vertex of the primary mirror to a vertex of the secondary mirror, a concave tertiary mirror arranged behind the primary mirror, the tertiary mirror having one of a parabolic, non-parabolic conical or aspherical surface, a concave quaternary mirror arranged in the central aperture of the primary mirror or behind the primary mirror, the quaternary mirror having one of a spherical, parabolic, non-parabolic conical or aspherical surface, and at least one image plane having one or more aggregated sensors, wherein the image plane is positioned at a radial distance from the optical axis that is no more than the radius of the primary mirror.