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公开(公告)号：US20230228994A1
公开(公告)日：2023-07-20
申请号：US17577480
申请日：2022-01-18
Applicant: GOOGLE LLC
CPC classification number: G02B27/0172 , G02C7/06 , G02B2027/0178 , G02B2027/014 , G02C2202/16
Abstract: A lens specification for multiple lens layers of a lens structure is generated by one or more processors. A multifocal correction (MFC) component is assigned to at least one lens layer of the multiple lens layers. Parameters are generated for a display optics (DO) lens layer comprising an augmented reality (AR) display, the DO lens layer having a first side for facing an eye of the user and a second side for facing away from the eye of the user. Parameters are generated for one or more eye side (ES) lens layers of the multiple lens layers to be disposed adjacent to the first side of the DO lens layer, and for one or more world side (WS) lens layers to be disposed adjacent to the second side of the DO lens layer. The generated lens specification is provided for use in production of the lens structure for the user.
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Patent Agency Ranking
公开(公告)号：US20230118615A1
公开(公告)日：2023-04-20
申请号：US17506021
申请日：2021-10-20
Applicant: GOOGLE LLC
Inventor： Brian Watson Cranton , Lloyd Frederick Holland
Abstract: A system includes a head-mounted display (HMD) device configured to project digital images to a user's eye and a viewing device. The viewing device includes an optical relay unit having a world-facing surface and an eye-facing surface and a holder coupled to the optical relay unit and configured to support the HMD device near the world-facing surface. The optical relay unit is configured to transmit light projected by the HMD device to an eye-facing aperture disposed at the eye-facing surface of the optical relay. The system shifts an eyebox of the HMD by receiving light projected from an optical combiner of the HMD, transmitting the light through the optical relay unit of the viewing device to the eye-facing aperture of the optical relay unit, and outputting the light from the eye-facing aperture such that the light is focused at an eyebox in which a user's eye is located.
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公开(公告)号：US20220373802A1
公开(公告)日：2022-11-24
申请号：US17408955
申请日：2021-08-23
Applicant: GOOGLE LLC
Inventor： Daniel David Albin Balzerson , Brian Watson Cranton , Qianli Ma , Haven John David Szostak
Abstract: A system and method of calibrating a head-mounted display (HMD) by positioning an optical combiner of the HMD into a holder of a calibration station such that the optical combiner is in a primary optical path of light provided from a micro-display of the HMD and a camera of the calibration station, adjusting a tunable correction unit to correct defocus caused by a corrective prescription of the optical combiner, capturing images of a reference target by the camera as viewed through the tunable correction unit and optical combiner, and generating a distortion model from the captured images and calibrating the HMD in order to apply the distortion model to images projected by the HMD.
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公开(公告)号：US20240411138A1
公开(公告)日：2024-12-12
申请号：US18717960
申请日：2022-11-21
Applicant: GOOGLE LLC
Inventor： Daniel Adema , Syed Moez Haque , Thuy Hong Nguyen , Brian Watson Cranton , Lloyd Frederick Holland
IPC: G02B27/01
Abstract: The present disclosure describes tinting techniques in a lens stack assembly for a wearable head mounted display (WHMD). The lens stack assembly includes a waveguide disposed between two lenses, where the two lenses include tints to selectively reduce the amount of ambient light transmitted to the user while not reducing the amount of the display light in the WHMD. In addition, the tinting techniques described herein reduce or eliminate the generation of ghost images resulting from the reflection of outcoupled light from the waveguide away from the user back toward the user.
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公开(公告)号：US12117611B2
公开(公告)日：2024-10-15
申请号：US17506021
申请日：2021-10-20
Applicant: GOOGLE LLC
Inventor： Brian Watson Cranton , Lloyd Frederick Holland
CPC classification number: G02B27/0081 , G02B5/04 , G02B13/0095 , G02B13/24 , G02B27/0172 , G02B2027/014 , G02B2027/0178
Abstract: A system includes a head-mounted display (HMD) device configured to project digital images to a user's eye and a viewing device. The viewing device includes an optical relay unit having a world-facing surface and an eye-facing surface and a holder coupled to the optical relay unit and configured to support the HMD device near the world-facing surface. The optical relay unit is configured to transmit light projected by the HMD device to an eye-facing aperture disposed at the eye-facing surface of the optical relay. The system shifts an eyebox of the HMD by receiving light projected from an optical combiner of the HMD, transmitting the light through the optical relay unit of the viewing device to the eye-facing aperture of the optical relay unit, and outputting the light from the eye-facing aperture such that the light is focused at an eyebox in which a user's eye is located.
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公开(公告)号：US20220268970A1
公开(公告)日：2022-08-25
申请号：US17205410
申请日：2021-03-18
Applicant: GOOGLE LLC
Inventor： Brian Watson Cranton , Darren Edward Ihmels , Ian Andrews , Lloyd Frederick Holland
Abstract: Systems, devices, and assemblies for implementing multi-focal lens portions in wearable heads-up displays are described. Multi-focal lens portions may include at least two regions having different optical power, and at least one transition region between regions having different optical power. If display light is directed through a transition region, aberrations or distortion may be visible in the display presented to the user. The present systems, devices, and assemblies address this issue through shaping, positioning, and orienting of regions of a multi-focal lens portion, through positioning, orientation, and aiming of display optics, and/or through arrangements of lens assemblies which prevent display light from travelling through a multi-focal lens portion.
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