公开(公告)号：US10764552B2

公开(公告)日：2020-09-01

申请号：US15897611

申请日：2018-02-15

Applicant: Google LLC

Inventor： John D. Perreault ,  Patrick Llull

IPC: H04N13/117 ,  G02B27/01 ,  H04N13/307 ,  H04N13/332 ,  H04N13/383 ,  G06T15/00 ,  G02B3/00 ,  G02B5/00 ,  G02B30/26

Abstract: A near-eye display system includes display panel to display a near-eye lightfield frame comprising an array of elemental images and a lenslet array to present the integral lightfield frame to a user's eye. The system further includes a rendering component to generate an array of elemental images based at least in part on a sparse sampling of a source image to decrease an overlap of image data contained within each individual elemental of the array of elemental images. A method of operation of the near-eye display system includes generating an array of elemental images forming the integral lightfield frame based on a sparse sampling of the current viewpoint of the subject object to decrease an overlap of image data contained within each individual elemental image of the array.

公开(公告)号：US20190243134A1

公开(公告)日：2019-08-08

申请号：US16148489

申请日：2018-10-01

Applicant: Google LLC

Inventor： John D. Perreault ,  Patrick Llull ,  Brion Koprowski

IPC: G02B27/01 ,  G02B27/00 ,  G02B5/30

CPC classification number: G02B27/0101 ,  G02B5/3083 ,  G02B26/08 ,  G02B27/0056 ,  G02B27/0172

Abstract: A near-eye display system includes a display panel to present image frames to the eyes of a user for viewing. The system also includes a beam steering assembly facing the display panel that is configurable to displace a light beam incident on the beam steering assembly, thereby laterally shifting light relative to an optical path of the light beam incident on the beam steering assembly. The beam steering assembly includes a birefringent plate configurable to replicate a light ray incident on the beam steering assembly such that the replicated light ray is laterally shifted relative to an optical path of the light ray incident on the beam steering assembly.

公开(公告)号：US11435576B2

公开(公告)日：2022-09-06

申请号：US17081650

申请日：2020-10-27

Applicant: Google LLC

Inventor： John D. Perreault ,  Patrick Llull

IPC: H04N9/47 ,  G02B27/00 ,  G02B27/01 ,  G02B30/27 ,  H04N13/128 ,  H04N13/305 ,  H04N13/383 ,  H04N13/344 ,  G02F1/29

Abstract: A near-eye display system includes a display panel to display a near-eye lightfield frame comprising an array of elemental images and an eye tracking component to track a pose of a user's eye. The system further includes a lenslet array and a rendering component to adjust the focal points of the array of elemental images in the integral lightfield frame based on the pose of the user's eye. A method of operation of the near-eye display system includes determining, using an eye tracking component of the near-eye display system, a first pose of a user's eye and determining a desired focal point for an array of elemental images forming an integral lightfield frame based on the first pose of the user's eye. The method further includes changing the focal length of light projecting out of a lenslet array based on the first pose of the user's eye.

公开(公告)号：US11314083B2

公开(公告)日：2022-04-26

申请号：US16148489

申请日：2018-10-01

Applicant: Google LLC

Inventor： John D. Perreault ,  Patrick Llull ,  Brion Koprowski

IPC: G02B27/01 ,  G02B5/30 ,  G02B27/00 ,  G02B26/08

Abstract: A near-eye display system includes a display panel to present image frames to the eyes of a user for viewing. The system also includes a beam steering assembly facing the display panel that is configurable to displace a light beam incident on the beam steering assembly, thereby laterally shifting light relative to an optical path of the light beam incident on the beam steering assembly. The beam steering assembly includes a birefringent plate configurable to replicate a light ray incident on the beam steering assembly such that the replicated light ray is laterally shifted relative to an optical path of the light ray incident on the beam steering assembly.

公开(公告)号：US20210076025A1

公开(公告)日：2021-03-11

申请号：US17081650

申请日：2020-10-27

Applicant: Google LLC

Inventor： John D. Perreault ,  Patrick Llull

IPC: H04N13/383 ,  G02B27/00 ,  G02B27/01 ,  G02B30/26 ,  G02F1/29 ,  H04N13/128 ,  H04N13/305 ,  H04N13/344 ,  G02B30/27

Abstract: A near-eye display system includes a display panel to display a near-eye lightfield frame comprising an array of elemental images and an eye tracking component to track a pose of a user's eye. The system further includes a lenslet array and a rendering component to adjust the focal points of the array of elemental images in the integral lightfield frame based on the pose of the user's eye. A method of operation of the near-eye display system includes determining, using an eye tracking component of the near-eye display system, a first pose of a user's eye and determining a desired focal point for an array of elemental images forming an integral lightfield frame based on the first pose of the user's eye. The method further includes changing the focal length of light projecting out of a lenslet array based on the first pose of the user's eye.

公开(公告)号：US10827164B2

公开(公告)日：2020-11-03

申请号：US16144025

申请日：2018-09-27

Applicant: Google LLC

Inventor： John D. Perreault ,  Jonathan Huang ,  Patrick Llull ,  Adrian Wong ,  Justin Legakis

IPC: H04N13/332 ,  H01L27/32 ,  H04N13/167 ,  G02B27/01

Abstract: A head-mounted display (HMD) device includes one or more active shutters coupled to a synchronization module. The synchronization module includes a first photodiode configured to detect a synchronization signal for controlling operation of the one or more active shutters. The one or more active shutters are configured to alternate between an open state to pass light and a closed state to block light for reducing a duty cycle of a display screen of a mobile device positioned within the HMD device. The synchronization signal provides a timing to block light from the display screen for a display update duration corresponding to a subset of pixels of the display screen.