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公开(公告)号：US12276792B2
公开(公告)日：2025-04-15
申请号：US17854825
申请日：2022-06-30
Applicant: GOOGLE LLC
Inventor： Syed Moez Haque , Shreyas Potnis , Ali Karbasi , Timothy Paul Bodiya , Daniel Adema , Ian Andrews
Abstract: A head-mounted display (HMD) system includes a lens element supported by a support structure. The lens element includes a waveguide that includes an incoupler, an outcoupler, and an exit pupil expander. The incoupler is disposed within a first area of the waveguide. The outcoupler is disposed within a second area of the waveguide. The exit pupil expander is disposed within a third area of the waveguide. An anti-reflection coating is formed via fabrication used to form the incoupler, the outcoupler, and the exit pupil expander. The anti-reflection coating is disposed within a fourth area of the waveguide different than the first, second, and third areas of the waveguide.
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公开(公告)号：US12276790B2
公开(公告)日：2025-04-15
申请号：US17580749
申请日：2022-01-21
Applicant: GOOGLE LLC
Inventor： Daniel Adema , Stuart James Myron Nicholson
Abstract: Systems, devices, and methods for accommodating multiple sets of laser light sources in an optical engine of a display system such as a laser projection system are described. Laser light beams may be combined via wavelength-, polarization-, and/or angular-separation-based techniques. First and second sets of laser light beams may be angularly separated such that different sets of partially overlapping pixels are projected by the system, thereby increasing the display pixel density and/or an expanding the field of view of the display. One or more laser die may be mounted to each submount of the optical engine. For embodiments with two laser dies on each submount, collimating lenses may introduce angular separation between laser light beams output by each pair of commonly mounted laser dies. A retroreflector prism may be disposed at a beam combiner to provide a compact extension of the optical path through the beam combiner.
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公开(公告)号：US20250102802A1
公开(公告)日：2025-03-27
申请号：US18728294
申请日：2022-07-19
Applicant: GOOGLE LLC
Inventor： Daniel Adema , Timothy Paul Bodiya
Abstract: The present disclosure describes techniques and waveguides for efficiently incoupling light of different optical characteristics at multiple incouplers in a waveguide. The waveguide includes a first incoupler to incouple light with a first optical characteristic, a second incoupler to incouple light with a second optical characteristic, and a first structure at an interface of the second incoupler to reflect light with the first optical characteristic within the waveguide.
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公开(公告)号：US20250004289A1
公开(公告)日：2025-01-02
申请号：US18697661
申请日：2022-09-29
Applicant: Google LLC
Inventor： Aurelien Jean Francois David , Benjamin Wales , Bergen Albert Fletcher , Daniel Adema , Daniel J. Effinger , Vance R. Morrison , Patrick F. Brinkley , Ian Andrews , Stuart James Myron Nicholson , Shreyas Potnis
Abstract: A display system includes one or more low-power laser diodes, each producing an emission. The emissions are directed to an optical element that affects the direction or divergence of the emissions. The optical element redirects the emissions toward a steering element such as a MEMS-actuated mirror, or a combination of such mirrors. The steering element directs the emissions toward the incoupler of a waveguide acting as an optical combiner. The emissions propagate through the waveguide and are extracted by an outcoupler in the direction of an observer. By scanning the direction of the beam-steering element along one or several directions, an image may be formed.
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公开(公告)号：US12158591B2
公开(公告)日：2024-12-03
申请号：US18347987
申请日：2023-07-06
Applicant: Google LLC
Inventor： Daniel Adema
Abstract: A head mounted wearable computing device includes a frame including arm portions rotatably coupled to a front frame portion, with electronic components housed in and/or on the front frame portion and the arm portions. Cables run through hinge mechanisms rotatably coupling the arm portions and the front frame portion for connection of electronic components in the arm portions and the front frame portion. The hinge mechanism includes a dual pivot structure that guides the bending of cables through the hinge mechanism through approximately 90 degrees of bending through two pivot points. The dual pivot structure reduces localized strain on the cable through the range of motion of the hinge mechanism. The dual pivot structure allows for a rotation through the range of motion with little to no extra cable length to accommodate the bending of the cable.
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Patent Agency Ranking
公开(公告)号：US12147056B2
公开(公告)日：2024-11-19
申请号：US17399566
申请日：2021-08-11
Applicant: GOOGLE LLC
Inventor： Daniel Adema , Vance R. Morrison
Abstract: A laser projection system is provided that includes at least one pickoff element or pickoff interface that redirects a portion of input laser light toward one or more photodetectors for purposes such as laser output power monitoring. An interface of a given pickoff element or a given pickoff interface uses Fresnel reflection to redirect the input laser light. The Fresnel reflection occurs due to a difference in indices of refraction between two materials that meet to form that interface. In some embodiments, a pickoff element is disposed in an optical path between a beam combiner and an optical scanner of the system. The pickoff element can be a plate beamsplitter, a cube beamsplitter, or a prism. In some embodiments, at least one pickoff interface is provided between two or more substrates of the beam combiner, the substrates that form a given pickoff interface having different respective indices of refraction.
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公开(公告)号：US12080204B2
公开(公告)日：2024-09-03
申请号：US17913043
申请日：2020-12-14
Applicant: GOOGLE LLC
Inventor： Stuart James Myron Nicholson , Timothy Paul Bodiya , Daniel Adema , Shreyas Potnis
CPC classification number: G09G3/002 , G02B27/01 , G02B27/017 , G02B27/0179 , G02B27/026 , G02B27/0988 , G02B27/1066 , G09G2320/043 , G09G2320/0626 , G09G2320/066 , G09G2330/021 , G09G2330/045 , G09G2340/0464 , G09G2360/144
Abstract: A display system varies a size of a field of view area of a display for augmented reality (AR) applications based on at least one of ambient light in the environment and content displayed at the display and varying a brightness level of the field of view area such that the brightness level within the field of view area is inversely proportional to the field of view area. Based on an amount of ambient light detected in the environment of the display system, the display system adjusts the size of the area of the field of view of the display in inverse proportion to the amount of detected ambient light. As the size of the field of view area decreases, the display system increases the brightness level of the display within the field of view such that the brightness level is approximately inversely proportional to the field of view area.
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公开(公告)号：US20240078944A1
公开(公告)日：2024-03-07
申请号：US18462262
申请日：2023-09-06
Applicant: Google LLC
Inventor： Daniel Adema , Shreyas Potnis , Eliezer Glik
CPC classification number: G09G3/007 , G02B27/0172 , G02B2027/0121 , G02B2027/0178 , G09G2320/0693
Abstract: Improved techniques of detecting angular misalignment between a display and a waveguide of a smartglasses device includes providing a detection mechanism for the display such that the location of a misalignment can indicate how to compensate for the misalignment.
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公开(公告)号：US11892649B2
公开(公告)日：2024-02-06
申请号：US18297372
申请日：2023-04-07
Applicant: Google LLC
Inventor： Daniel Adema , Timothy Paul Bodiya
CPC classification number: G02B27/0179 , G02B6/0055 , G02B6/0056 , G02B27/0172 , G06F3/013 , G09G3/002 , G02B2027/0178 , G02B2027/0187 , G09G2354/00
Abstract: Improved systems ensuring an accuracy of eye gaze measurements in an augmented reality head-mounted wearable device include a radiation direction rerouter (e.g., a partial retroreflector) configured to adjust an angle of incidence of the radiation in the waveguide at a first surface of a waveguide to produce radiation directed at an adjusted angle of incidence at an outcoupler such that the output direction is essentially parallel to the gaze angle of the user's eye. For example, a partial retroreflector may be disposed on a surface of the waveguide opposite the outcoupler provides an additional reflection so that the gaze angle of the user's eye is matched to an angle of an image of the eye pupil onto a world-facing radiation detector (e.g., a camera).
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公开(公告)号：US20240019704A1
公开(公告)日：2024-01-18
申请号：US18347987
申请日：2023-07-06
Applicant: Google LLC
Inventor： Daniel Adema
CPC classification number: G02B27/0176 , G02C5/2236
Abstract: A head mounted wearable computing device includes a frame including arm portions rotatably coupled to a front frame portion, with electronic components housed in and/or on the front frame portion and the arm portions. Cables run through hinge mechanisms rotatably coupling the arm portions and the front frame portion for connection of electronic components in the arm portions and the front frame portion. The hinge mechanism includes a dual pivot structure that guides the bending of cables through the hinge mechanism through approximately 90 degrees of bending through two pivot points. The dual pivot structure reduces localized strain on the cable through the range of motion of the hinge mechanism. The dual pivot structure allows for a rotation through the range of motion with little to no extra cable length to accommodate the bending of the cable.
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