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公开(公告)号：US20240319417A1
公开(公告)日：2024-09-26
申请号：US18574956
申请日：2022-06-30
Applicant: GOOGLE LLC
Inventor： Timothy Paul Bodiya , Shreyas Potnis , Daniel Adema , Ian Andrews , Syed Moez Haque
CPC classification number: G02B5/1809 , G02B5/1819 , G02B5/1842 , G02B6/124 , G02B27/0081 , G02B27/0172 , G02B2027/0178
Abstract: A head-mounted display system (100) includes a lens element (110) supported by a support structure (102). The lens element (110) includes a waveguide (212) to couple light from an image source. The waveguide (212) includes a waveguide surface (207) and a grating (250). The grating (250) is disposed onto the waveguide surface (207) and includes rows of three-dimensional, 3D, primitive structures (435), with a height of the 3D primitive structures being smaller than a wavelength of visible incident light at a surface of the sub-wavelength grating.
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公开(公告)号：US20230333370A1
公开(公告)日：2023-10-19
申请号：US18213395
申请日：2023-06-23
Applicant: GOOGLE LLC
Inventor： Timothy Paul Bodiya , Shreyas Potnis
CPC classification number: G02B27/0081 , G06F1/163 , G02B6/0023
Abstract: There is provided a method of operating a wearable heads-up display (WHUD), which method includes generating first and second lights having respectively first and second wavelengths within about 50 nm of one another. The method also includes directing the first and second lights onto an incoupler of a display optic of the WHUD along first and second ranges of input angles respectively. The first and second ranges of input angles correspond to positions of pixels of first and second portions of an image to be displayed by the WHUD. The incoupler has first and second angular bandwidths corresponding to the first and second wavelengths respectively. A combination of the first and second ranges of input angles is larger than each of the first and second angular bandwidths. Moreover, the method includes directing the first and second lights into a field of view of a user to form the image.
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公开(公告)号：US11782276B2
公开(公告)日：2023-10-10
申请号：US17204451
申请日：2021-03-17
Applicant: GOOGLE LLC
Inventor： Daniel Adema , Timothy Paul Bodiya , Shreyas Potnis
CPC classification number: G02B27/0172 , G02B6/0023 , G02B6/0068 , G02B26/101 , G03B21/2033 , G02B2027/0118 , G02B2027/0178
Abstract: Systems and methods to reduce light loss from a waveguide. The system includes a waveguide having an incoupler to direct light into the waveguide and a laser projector having laser diodes mounted to a substrate. The laser projector is configured to provide a plurality of laser light beams to the incoupler of the waveguide. The system further includes at least one alignment component configured to align the plurality of laser light beams tangent with an edge of the incoupler to minimize light lost from the waveguide through contact with the incoupler more than once.
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公开(公告)号：US11726319B2
公开(公告)日：2023-08-15
申请号：US16737255
申请日：2020-01-08
Applicant: GOOGLE LLC
Inventor： Timothy Paul Bodiya , Shreyas Potnis
CPC classification number: G02B27/0081 , G02B6/0023 , G06F1/163
Abstract: There is provided a method of operating a wearable heads-up display (WHUD), which method includes generating first and second lights having respectively first and second wavelengths within about 50 nm of one another. The method also includes directing the first and second lights onto an incoupler of a display optic of the WHUD along first and second ranges of input angles respectively. The first and second ranges of input angles correspond to positions of pixels of first and second portions of an image to be displayed by the WHUD. The incoupler has first and second angular bandwidths corresponding to the first and second wavelengths respectively. A combination of the first and second ranges of input angles is larger than each of the first and second angular bandwidths. Moreover, the method includes directing the first and second lights into a field of view of a user to form the image.
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公开(公告)号：US11347062B2
公开(公告)日：2022-05-31
申请号：US16738074
申请日：2020-01-09
Applicant: GOOGLE LLC
Inventor： Timothy Paul Bodiya , Shreyas Potnis , Stuart James Myron Nicholson , Bergen Fletcher
Abstract: There is provided a method of operating a wearable heads-up display (WHUD). The WHUD may include a light source, a spatial modulator, and a display optic. The method may include generating, by the light source, an output light to form an image viewable by a user of the WHUD. The method may also include receiving a position of a pupil of the user relative to an eyebox of the WHUD, and obtaining an image correction map based on the position of the pupil. Moreover, the method may include adjusting the output light to form an adjusted output light. The adjusted output light may be adjusted based on the image correction map to reduce at least one of an intensity non-uniformity and a color balance non-uniformity of the image. The method may also include directing, by the display optic, the adjusted output light into a field of view of the user.
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Patent Agency Ranking
公开(公告)号：US20210157140A1
公开(公告)日：2021-05-27
申请号：US16898773
申请日：2020-06-11
Applicant: GOOGLE LLC
Inventor： Shreyas Potnis , Kevin Orr , Kai Xu
Abstract: A combiner lens system includes a lens and a lightguide in stack with the lens. The lightguide carries one or more electrically conductive traces. A detector circuit is electrically coupled to the one or more electrically conductive traces to form an electrical circuit. The detector circuit monitors the electrical circuit for an open circuit or a short circuit and generates an output signal that is indicative of a state of the electrical circuit.
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公开(公告)号：US20250130428A1
公开(公告)日：2025-04-24
申请号：US18921196
申请日：2024-10-21
Applicant: GOOGLE LLC
Inventor： Daniel Adema , Shreyas Potnis
IPC: G02B27/01 , H04N19/895
Abstract: According to an aspect, a method includes generating a first projection from a first image source, the first projection displayed on a surface of a device. The method further includes generating a second projection from a second image source, the second projection displayed on the surface of the device. The method also includes identifying at least one error in an alignment associated with the first image source based on the first projection and the second projection.
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公开(公告)号：US20250102742A1
公开(公告)日：2025-03-27
申请号：US18728210
申请日：2022-07-21
Applicant: GOOGLE LLC
Inventor： Daniel Adema , Shreyas Potnis , Timothy Paul Bodiya , Ian Andrews
Abstract: The present disclosure describes techniques and arrangements for directing light from an optical engine to one of a plurality of incouplers in a multiple incoupler waveguide system. For example, the present disclosure describes a plurality of reflective and transmissive elements to selectively direct light based on a plurality of optical characteristics to a first incoupler or a second incoupler.
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公开(公告)号：US12248151B1
公开(公告)日：2025-03-11
申请号：US18538823
申请日：2023-12-13
Applicant: Google LLC
Inventor： Daniel Adema , Shreyas Potnis
IPC: G02B27/01
Abstract: Illustrative systems and methods for performing extended reality projection using monochrome pixel panels in inverted arrangements are described herein. For example, an extended reality projection system may include a binocular head-mounted display having a left side and a right side, a first set of monochrome pixel panels distributed in a first arrangement and collectively configured to produce a color image for presentation on the left side, and a second set of monochrome pixel panels distributed in a second arrangement and collectively configured to produce the color image for presentation on the right side. In this extended reality projection system, the second arrangement may be inverted from the first arrangement such that a color non-uniformity associated with the presentation on the right side is inverted from a color non-uniformity associated with the presentation on the left side. Corresponding methods and systems are also disclosed.
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公开(公告)号：US20250067981A1
公开(公告)日：2025-02-27
申请号：US18811186
申请日：2024-08-21
Applicant: GOOGLE LLC
Inventor： Joseph Daniel Lowney , Shreyas Potnis
IPC: G02B27/01
Abstract: An eyewear display includes a first waveguide incorporated into one lens of the eyewear display and a second waveguide incorporated into the other lens of the eyewear display. The first waveguide includes a first incoupler, and the second waveguide includes a second incoupler. The eyewear display also includes a light engine with a switchable panel to alternate between directing display light to the first incoupler and directing display light to the second incoupler.
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