中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

12 records (took 0.012 seconds)

    WAVEGUIDES INCLUDING A BLUE WAVEGUIDE FILM
    4.
    发明申请
    WAVEGUIDES INCLUDING A BLUE WAVEGUIDE FILM 有权

    公开(公告)号：US20240427075A1

    公开(公告)日：2024-12-26

    申请号：US18746970

    申请日：2024-06-18

    Applicant: GOOGLE LLC

    Inventor： Eliezer Glik ,  Pierre St. Hilaire

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

    Abstract: A stacked waveguide is configured to provide light representative of an image to the eye of a user. To this end, the stacked waveguide includes a first waveguide having a first refraction index and including an incoupler configured to direct a first portion of display light having a first wavelength and a second portion of display light that has a second, different wavelength into the first waveguide. Further, the stacked waveguide includes a second waveguide having a second, different refraction index and including an incoupler configured to direct a third portion of display light having a third wavelength different from the first and second wavelengths into the second waveguide.

    PARTIALLY CURVED LIGHTGUIDE WITH PUPIL REPLICATORS
    5.
    发明公开
    PARTIALLY CURVED LIGHTGUIDE WITH PUPIL REPLICATORS 审中-公开

    公开(公告)号：US20240004199A1

    公开(公告)日：2024-01-04

    申请号：US18209723

    申请日：2023-06-14

    Applicant: GOOGLE LLC

    Inventor： Eliezer Glik ,  Oscar Alberto Martinez ,  Ozan Cakmakci

    IPC: G02B27/01

    CPC classification number: G02B27/0172

    Abstract: Techniques for implementing a partially curved lightguide with pupil replicators are disclosed. A partially curved lightguide includes an embedded collimator with surfaces that act to collimate light for display prior to the light encountering a surface in a pupil expansion region of an exit pupil expander. By collimating the light within the lightguide rather than collimating the light prior to entering the lightguide, the requisite volume of a form factor of an AR display is minimized by eliminating select collimating optics and thus enabling a less bulky volume of the AR display in the region of the light source. Using techniques disclosed herein, a partially curved lightguide with pupil replicators is achievable in an eyewear display system having a form factor similar to traditional eyeglasses and curved, thin lenses.

    SINGLE WAVEGUIDE RED-GREEN-BLUE (RGB) ARCHITECTURE USING LOW INDEX MEDIUMS
    6.
    发明申请
    SINGLE WAVEGUIDE RED-GREEN-BLUE (RGB) ARCHITECTURE USING LOW INDEX MEDIUMS 有权

    公开(公告)号：US20240385444A1

    公开(公告)日：2024-11-21

    申请号：US18684806

    申请日：2022-08-10

    Applicant: GOOGLE LLC

    Inventor： Eliezer Glik ,  Ruoping Li ,  Ido Raveh

    IPC: G02B27/01 ,  F21V8/00

    Abstract: A virtual image is displayed to a user via a light engine (211) to generate a display light representing the virtual image, a diffractive waveguide (235), and an incoupler (231) and outcoupler (234) that are each optically coupled to the diffractive waveguide (235). In operation, the incoupler (231) receives the display light from the light engine (211) and directs the received display light into the diffractive waveguide (235) and to one or more multidimensional intermediate gratings (232. 233). The multidimensional intermediate gratings (232, 233) redirect the display light through the diffractive waveguide (235) to the outcoupler (234), which in turn redirects at least a portion of the display light out of the diffractive waveguide (235) to an eye (291, 293) of the user.

    LOW RESIDUAL LAYER THICKNESS WAVEGUIDE WITH HIGH-INDEX COATING
    7.
    发明公开
    LOW RESIDUAL LAYER THICKNESS WAVEGUIDE WITH HIGH-INDEX COATING 审中-公开

    公开(公告)号：US20230359050A1

    公开(公告)日：2023-11-09

    申请号：US18141674

    申请日：2023-05-01

    Applicant: GOOGLE LLC

    Inventor： Eliezer Glik ,  Shreyas Potnis

    IPC: G02B27/09 ,  G02B1/02 ,  G02B27/01

    CPC classification number: G02B27/0944 ,  G02B1/02 ,  G02B27/0172 ,  G02B2027/0178

    Abstract: To increase the field of view and/or the wavelengths of light (i.e., color bandwidth) transmitted by a waveguide without using high-index resin, some embodiments include a waveguide grating formed on a substrate that is imprinted with a relatively low-index resin and a conformal coating having a relatively high refractive index. In some embodiments, the substrate is imprinted with the resin using nano imprint lithography and the residual layer thickness of the resin layer is minimized. The conformal coating conforms to the geometry of the surface it coats with a substantially uniform thickness.

    OPTICAL DESIGN OF A DUAL COMBINER IN HEAD-WEARABLE DISPLAY
    8.
    发明申请
    OPTICAL DESIGN OF A DUAL COMBINER IN HEAD-WEARABLE DISPLAY 有权

    公开(公告)号：US20230078819A1

    公开(公告)日：2023-03-16

    申请号：US17471750

    申请日：2021-09-10

    Applicant: GOOGLE LLC

    Inventor： Ozan Cakmakci ,  Eliezer Glik

    IPC: G02B27/01 ,  F21V8/00 ,  G02B27/28

    Abstract: A head-wearable display device is configured to support a plurality of combiners (e.g., at least two combiners) to expand an eyebox associated with the head-wearable display device. The plurality of combiners may expand the pupil and the head-wearable display device may be configured to align the magnification between the plurality of combiners, such that a single magnified virtual image with an expanded eyebox may be delivered to the user.

    CURVED SEE-THROUGH LIGHTGUIDE WITH INTERMEDIATE FOCUS
    9.
    发明申请
    CURVED SEE-THROUGH LIGHTGUIDE WITH INTERMEDIATE FOCUS 有权

    公开(公告)号：US20240418994A1

    公开(公告)日：2024-12-19

    申请号：US18700850

    申请日：2022-10-11

    Applicant: GOOGLE LLC

    Inventor： Eliezer Glik ,  Ozan Cakmakci

    IPC: G02B27/01 ,  G02B6/42

    Abstract: A head-mounted display includes a microdisplay configured to emit light representative of an image and provide the emitted light to an optics relay included in the head-mounted display. The optics relay is configured to magnify the image emitted by the microdisplay by a predetermined power such that an intermediate image based on the magnified image is formed in a curved lightguide of the head-mounted display. The intermediate image is then provided by the curved lightguide to an optical output system included in or otherwise coupled to the curved lightguide. The optical output system then provides at least a portion of the intermediate image to the eye of a user.

    CURVED LIGHTGUIDE IN A SEE-THROUGH SHELL
    10.
    发明公开
    CURVED LIGHTGUIDE IN A SEE-THROUGH SHELL 审中-公开

    公开(公告)号：US20240337839A1

    公开(公告)日：2024-10-10

    申请号：US18130601

    申请日：2023-04-04

    Applicant: GOOGLE LLC

    Inventor： Ozan Cakmakci ,  Oscar Alberto Martinez ,  Eliezer Glik ,  Han Zhang

    IPC: G02B27/01

    CPC classification number: G02B27/0172 ,  G02B2027/0178

    Abstract: A head mounted display includes an eyeglasses frame, a lens framed in the eyeglasses frame, and a light engine disposed in the eyeglasses frame. The lens includes an optical shell comprising a world-facing spherical surface and an opposing eye-facing surface and a curved lightguide disposed in the optical shell. The curved lightguide includes an incoupler surface, a first freeform surface facing the world-facing spherical surface, and a second freeform surface facing the eye-facing surface. The lens further includes a first low refractive index region disposed between the first freeform surface and a first conformal freeform surface of the optical shell and a second low refractive index region disposed between the second freeform surface and a second conformal freeform surface of the optical shell.

Patent Agency Ranking