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公开(公告)号：US20220236564A1
公开(公告)日：2022-07-28
申请号：US17239245
申请日：2021-04-23
发明人： Fenglin Peng , Dong Chen , Cheonhong Kim , Yusufu Njoni Bamaxam Sulai , Ying Geng , Jacques Gollier , Jianru Shi , Linghui Rao
IPC分类号： G02B27/01 , G02F1/13363 , G02F1/1335
摘要： Ghost image formation due to reflections of image light by a display panel to an ocular lens may be suppressed by ensuring that the image light reflected by the lens does not get reflected by the display panel back towards the lens. To that end, the display panel may include a quarter-wave birefringent layer between the top polarizer of the display panel and a layer inside the display panel that the image light reflects from, such as a black grid layer or an active matrix layer.
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公开(公告)号：US11372239B1
公开(公告)日：2022-06-28
申请号：US16178177
申请日：2018-11-01
摘要： Ghost images can interfere with eye tracking in a system that uses folded optics, such as is an artificial-reality display. Optical elements, such as waveplates and/or polarizers, can be used to attenuate or eliminate light causing the ghost images.
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公开(公告)号：US11220028B1
公开(公告)日：2022-01-11
申请号：US15916100
申请日：2018-03-08
IPC分类号： B29C43/36 , B29C43/02 , B29C43/52 , B29K33/00 , B29K69/00 , B29K105/00 , B29L11/00 , B29C43/56
摘要： A method for manufacturing thin, multi-bend optics includes placing an optical substrate and a protective sheet into a compression mold and closing the compression mold to deform the optical substrate and to deform the protective sheet. The optical substrate can include an optical surface and the protective sheet can be disposed between the compression mold and the optical surface of the optical substrate. The compression mold can include a mold contact surface that is characterized by a surface roughness. The compression mold can be held in a closed position for a compression time period, during which, the protective sheet contacts the mold contact surface and provides a buffer layer between the mold contact surface and the optical surface thereby mitigating against transfer of the surface roughness of the mold contact surface onto the optical surface.
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公开(公告)号：US10989928B2
公开(公告)日：2021-04-27
申请号：US16810417
申请日：2020-03-05
发明人： Ying Geng , Brian Wheelwright , Jacques Gollier , Yusufu Njoni Bamaxam Sulai , Fenglin Peng , Babak Amirsolaimani
摘要： An optical assembly includes a substrate having a first surface and a second surface that is opposite to and substantially parallel with the first surface. The substrate also includes a reflector and a beam splitter, each of which is coupled to the substrate. The optical assembly is configured to transmit image light received at the first surface in an optical path that includes reflection at each of the reflector and the beam splitter before the image light is output from the second surface. The optical assembly is also configured to transmit ambient light received at the first surface such that the second light is output from the second surface without undergoing reflection at either the reflector or the beam splitter. A method of transmitting light through the optical assembly is also disclosed.
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5.发明授权公开(公告)号：US10955675B1
公开(公告)日：2021-03-23
申请号：US16399820
申请日：2019-04-30
发明人： Brian Wheelwright , Jacques Gollier , Ying Geng , Yusufu Njoni Bamaxam Sulai , Fenglin Peng , Babak Amirsolaimani
IPC分类号： G02B27/01 , G06F1/3234 , H04W52/02 , H04L12/58 , G02B27/00
摘要： A display device is configurable to be operable in a first mode and a second mode. The display device includes an emission surface configured to output image light, a first optical assembly, and a second optical assembly. The first optical assembly is configured to receive image light from the emission surface and to direct the image light toward the eyes of a user at a first optical power. The second optical assembly includes a first region configured to receive image light from the emission surface and to direct the image light toward the eyes of a user at a second optical power. The second optical assembly also includes a second region configured to receive ambient light and to transmit at least a portion of the received ambient light at a third optical power distinct from and less than the first optical power and the second optical power.
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公开(公告)号：US10901291B1
公开(公告)日：2021-01-26
申请号：US15849336
申请日：2017-12-20
IPC分类号： G02F1/29 , H04N13/383
摘要： A head-mounted display (HMD) presented herein comprises an electronic display and an optical assembly. The electronic display is configured to emit image light. The optical assembly is configured to direct the image light to an eye-box of the HMD corresponding to a location of a user's eye. The optical assembly includes a multifocal optical element, e.g., a bifocal optical element. A first portion of the multifocal optical element has a first optical power that is associated with a first image plane. The second portion of the multifocal optical element has a second optical power different than the first optical power, the second portion associated with a second image plane.
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公开(公告)号：US10817052B1
公开(公告)日：2020-10-27
申请号：US15866349
申请日：2018-01-09
摘要： Described herein is a human eye emulator device that emulates the human eye's responses to light. The human eye emulator device is based on an electro-optical liquid crystal eye model. The human eye emulator device includes a Pancharatnam berry phase (PBP) liquid crystal (LC) lens, a liquid crystal (LC) shutter glass, and a liquid crystal (LC) lens. The PBP LC lens emulates the cornea. The PBP LC lens receives light and refracts the received light. The LC shutter glass emulates the pupil. The LC shutter glass forms a dynamic aperture that transmits a portion of the light refracted by the PBP LC lens. The LC lens emulates the crystalline lens. The LC lens receives the portion of light transmitted by the LC shutter glass and refracts the received portion of light through the LC shutter glass onto an imaging surface.
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公开(公告)号：US10788677B2
公开(公告)日：2020-09-29
申请号：US15723305
申请日：2017-10-03
发明人： Ying Geng , Yusufu Njoni Bamaxam Sulai , Andrew John Ouderkirk , Brian Wheelwright , Jacques Gollier , Alexander Sohn , Robin Sharma
摘要： A head-mounted device (HMD) comprises a display element, a Fresnel assembly, an illumination source, and a camera assembly. The display element outputs image light in a first band of light through a display surface. The optics block directs light from the display element to a target region (e.g., includes a portion of a user's face, eyes, etc.). The Fresnel assembly transmits light in the first band and directs light in a second band different than the first band to a first position. The source illuminates the target area with light in the second band. The camera is located in the first position and captures light in the second band corresponding to light reflected from the target area that is then reflected by the Fresnel assembly toward the camera. A controller may use the captured light to determine tracking information for areas of a user's face (e.g., eyes).
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公开(公告)号：US10778954B1
公开(公告)日：2020-09-15
申请号：US16400853
申请日：2019-05-01
发明人： Olivier Mercier , Yusufu Njoni Bamaxam Sulai , Kevin James MacKenzie , Marina Zannoli , James Hillis , Derek Nowrouzezahrai , Douglas Robert Lanman
IPC分类号： H04N13/144 , H04N13/344 , H04N13/383 , G09G5/10
摘要： A multifocal test system is described herein. The system includes a plurality of displays located at different focal distances. Each display includes a plurality of pixels with pixel intensity values. The system includes an eye tracking system that determines eye tracking information about a position of an eye relative to the displays. A controller is configured to determine pixel intensity values based on decomposition of a scene across the plurality of displays, and the position of the eye.
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公开(公告)号：US10694166B1
公开(公告)日：2020-06-23
申请号：US16732840
申请日：2020-01-02
发明人： Olivier Mercier , Yusufu Njoni Bamaxam Sulai , Kevin James MacKenzie , Marina Zannoli , James Hillis , Derek Nowrouzezahrai , Douglas Robert Lanman
IPC分类号： H04N13/144 , H04N13/383 , H04N13/344 , G06T5/00 , H04N13/128
摘要： Systems and methods for displaying an image across a plurality of displays are described herein. Pixel intensity values in the multifocal display are determined using correlation values and numerical iterations. An eye tracking system measures eye tracking information about a position of a user's eye, and the pixel intensity values are modified based on the eye tracking information. An image is displayed on the plurality of displays based on the determined pixel intensity values. The plurality of displays may be within an HMD, and address vergence accommodation conflict by simulating retinal defocus blur.
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