中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

90 records (took 0.026 seconds)

    SYSTEMS, DEVICES, AND METHODS FOR WAVEGUIDE-BASED EYEBOX EXPANSION IN WEARABLE HEADS-UP DISPLAYS
    1.
    发明申请
    SYSTEMS, DEVICES, AND METHODS FOR WAVEGUIDE-BASED EYEBOX EXPANSION IN WEARABLE HEADS-UP DISPLAYS 审中-公开

    公开(公告)号：US20190094549A1

    公开(公告)日：2019-03-28

    申请号：US16143030

    申请日：2018-09-26

    Applicant: THALMIC LABS INC.

    Inventor： Stuart James Myron Nicholson ,  Timothy Paul Bodiya ,  Stefan Alexander

    IPC: G02B27/01 ,  F21V8/00 ,  G02B27/00

    Abstract: 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.

    SYSTEMS, DEVICES, AND METHODS FOR OPTICAL WAVEGUIDES
    2.
    发明申请
    SYSTEMS, DEVICES, AND METHODS FOR OPTICAL WAVEGUIDES 审中-公开

    公开(公告)号：US20190079296A1

    公开(公告)日：2019-03-14

    申请号：US16128106

    申请日：2018-09-11

    Applicant: THALMIC LABS INC.

    Inventor： Stefan Alexander ,  Douglas Raymond Dykaar ,  John Otto Vieth ,  Timothy Paul Bodiya

    IPC: G02B27/01 ,  G02B6/28 ,  G02F1/13

    Abstract: Systems, devices, and methods for optical waveguides that are well-suited for use in wearable heads-up displays (WHUDs) are described. An optical device comprises an optical waveguide including a volume of optically transparent material having a first longitudinal surface positioned opposite a second longitudinal surface across a width of the volume, an in-coupler, a liquid crystal out-coupler, and a controller to modulate a refractive index of the liquid crystal out-coupler. Light is in-coupled into the waveguide and is propagated along a length of the waveguide by total internal reflection between the longitudinal surfaces before being out-coupled by the liquid crystal out-coupler on a path that is dependent on the modulated refractive index of the liquid crystal out-coupler. In this way, light signals can be steered to create an image and/or to move an exit pupil of an image. WHUDs that employ such optical waveguides are also described.

    SYSTEMS, DEVICES, AND METHODS FOR OPTICAL WAVEGUIDES
    3.
    发明申请
    SYSTEMS, DEVICES, AND METHODS FOR OPTICAL WAVEGUIDES 审中-公开

    公开(公告)号：US20190079293A1

    公开(公告)日：2019-03-14

    申请号：US16127981

    申请日：2018-09-11

    Applicant: THALMIC LABS INC.

    Inventor： Stefan Alexander ,  Douglas Raymond Dykaar ,  John Otto Vieth ,  Timothy Paul Bodiya

    IPC: G02B27/01 ,  G02B27/00 ,  G06F3/01

    Abstract: Systems, devices, and methods for optical waveguides that are well-suited for use in wearable heads-up displays (WHUDs) are described. An optical device comprises an optical waveguide including a volume of optically transparent material having a first longitudinal surface positioned opposite a second longitudinal surface across a width of the volume, a liquid crystal in-coupler, a controller to modulate a refractive index of the liquid crystal in-coupler, and an out-coupler. Light is in-coupled into the waveguide on a path that is dependent on the modulated refractive index of the liquid crystal in-coupler and is propagated along a length of the waveguide by total internal reflection between the longitudinal surfaces before being out-coupled by the out-coupler. In this way, light signals can be steered to create an image and/or to move an exit pupil of an image. WHUDs that employ such optical waveguides are also described.

    SYSTEMS, DEVICES, AND METHODS FOR OPTICAL WAVEGUIDES
    4.
    发明申请
    SYSTEMS, DEVICES, AND METHODS FOR OPTICAL WAVEGUIDES 审中-公开

    公开(公告)号：US20180373043A1

    公开(公告)日：2018-12-27

    申请号：US16020000

    申请日：2018-06-27

    Applicant: THALMIC LABS INC.

    Inventor： Stefan Alexander ,  Douglas Raymond Dykaar ,  John Otto Vieth ,  Timothy Paul Bodiya

    IPC: G02B27/01 ,  F21V8/00

    Abstract: Systems, devices, and methods for optical waveguides that are well-suited for use in wearable heads-up displays (WHUDs) are described. An optical waveguide includes a volume of optically transparent material, a first holographic optical element (HOE) and a second holographic optical element, wherein the first HOE and the second HOE are carried by the volume of optically transparent material, and the first HOE is positioned across a width of the volume of optically transparent material from the second HOE. Light enters the optical waveguide and is propagated down a length of the waveguide by reflection between the first HOE and the second HOE. Propagation of the light within the optical waveguide does not require total internal reflection. The optical waveguide may include means to in-couple the light into the waveguide and means to out-couple the light from the waveguide. WHUDs that employ such optical waveguides are also described.

    SYSTEMS, DEVICES, AND METHODS FOR VARIABLE LUMINANCE IN WEARABLE HEADS-UP DISPLAYS
    8.
    发明申请
    SYSTEMS, DEVICES, AND METHODS FOR VARIABLE LUMINANCE IN WEARABLE HEADS-UP DISPLAYS 审中-公开

    公开(公告)号：US20180113305A1

    公开(公告)日：2018-04-26

    申请号：US15839075

    申请日：2017-12-12

    Applicant: THALMIC LABS INC.

    Inventor： Stefan Alexander ,  Ken Wu ,  Vance R. Morrison

    IPC: G02B27/01 ,  G02B27/09 ,  G02B27/02

    Abstract: Systems, devices, and methods for laser projectors with variable luminance that are well-suited for use in a wearable heads-up display (“WHUD”) are described. Such laser projectors include a laser light source(s) and a scan mirror(s) to generate an image in the field of view of a user, and a liquid crystal element between the light source(s) and the scan mirror(s) to adjust the luminance of the image. The liquid crystal element is on an optical path between the laser light source(s) and the scan mirror and is communicatively coupled to a controller that modulates an opacity of the liquid crystal element. The opacity of the liquid crystal element determines the luminance of the image and may be altered in response to different factors, such as ambient light. Particular applications of the laser projector systems, devices, and methods in a wearable heads-up display are described.

    SYSTEMS, DEVICES, AND METHODS FOR WEARABLE HEADS-UP DISPLAYS
    10.
    发明申请
    SYSTEMS, DEVICES, AND METHODS FOR WEARABLE HEADS-UP DISPLAYS 审中-公开

    公开(公告)号：US20180106996A1

    公开(公告)日：2018-04-19

    申请号：US15845384

    申请日：2017-12-18

    Applicant: THALMIC LABS INC.

    Inventor： Matthew Bailey ,  Stefan Alexander

    IPC: G02B26/10 ,  G02B27/01 ,  G02B27/30

    CPC classification number: G02B26/10 ,  G02B27/017 ,  G02B27/0176 ,  G02B27/30 ,  G02B2027/015 ,  G02B2027/0154 ,  G02B2027/0178 ,  G02B2027/0187

    Abstract: Systems, devices, and methods for transparent displays that are well-suited for use in wearable heads-up displays are described. Such transparent displays include one or more scanning projector(s) that is/are mounted on or proximate the lens portion(s) thereof, directly in the field of view of the user. Each scanning projector includes a respective light source that sequentially generates pixels or other discrete portions of an image and a respective dynamic optical beam-steerer that controllably steers the modulated light directly towards select regions of the eye of the user. Successive portions of the image are generated in rapid succession until the entire image is displayed to the user by projection directly onto the eye of the user from one or more point(s) within the user's field of view.

Patent Agency Ranking