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公开(公告)号：US20240353921A1
公开(公告)日：2024-10-24
申请号：US18305503
申请日：2023-04-24
Applicant: Valve Corporation
Inventor： Joshua Mark Hudman
IPC: G06F3/01 , A63F13/537 , G06F3/0346
CPC classification number: G06F3/013 , A63F13/537 , G06F3/0346
Abstract: Calibrating an eye tracking system based at least in part on a user interface element(s) presented on a display panel(s) of a head-mounted display (THMID) is disclosed. A processor(s) may present a user interface element on a display panel(s) of a HMD, and may receive, from a handheld controller, user input data indicating that a user wearing the H/ID has provided user input associated with the user interface element via the handheld controller. In response to the receiving of the user input data from the handheld controller, the processor(s) may receive, from an eye tracking sensor(s) of the HMD, eye data associated with one or more eyes of the user, and may calibrate the eye tracking system based at least in part on the eye data and location data indicating a location on the display panel(s) where the user interface element is presented.
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公开(公告)号：US12058427B2
公开(公告)日：2024-08-06
申请号：US17170489
申请日：2021-02-08
Applicant: Valve Corporation
Inventor： Joshua Mark Hudman
CPC classification number: H04N23/55 , G02B5/3083 , G02B27/285 , G02B27/286
Abstract: Systems and methods of the present disclosure provide a compact camera device that utilizes one or more spatially varying polarizers, such as one or more multi-twist retarders, to provide compact designs with improved performance. The spatially varying polarizers may be used to multiplex light received by a camera, which allows optics to modify (e.g., focus) incident light in a polarization specific manner to provide better resolution, reduced form factor, or other advantages.
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公开(公告)号：US20240184035A1
公开(公告)日：2024-06-06
申请号：US18514679
申请日：2023-11-20
Applicant: Valve Corporation
Inventor： Joshua Mark Hudman , Douglas Vanderwel
CPC classification number: G02B6/0061 , G02B6/003 , G02B6/0036 , G02B6/0043 , G02B6/0068 , G06F1/163
Abstract: Methods and systems relating generally to information displays, and more particularly to systems and methods for backlight assemblies for information displays that provide improved efficiency. A backlight assembly may include a light guide that is sized and dimensioned to illuminate only a portion of the display that is imaged or focused by an optics system. The backlight assembly may include a light source, such as one or more laser diodes, that directs a light beam into the light guide wherein the beam reflects via total internal reflection. The light guide may include a plurality of light extraction features configured to diffuse light toward a display panel, such as a liquid crystal display (LCD) panel.
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公开(公告)号：US20240096306A1
公开(公告)日：2024-03-21
申请号：US17941363
申请日：2022-09-09
Applicant: Valve Corporation
Inventor： Joshua Mark Hudman , Ivan McCraken
CPC classification number: G10K11/16 , A63F13/54 , G06F1/163 , G06F1/203 , A63F2300/6081
Abstract: Described herein are active noise reduction (ANR) techniques for reducing noise produced by a fan(s) of a head-mounted display (HMD). An example process may include receiving data indicative of a noise that is being produced by the fan(s), determining, based at least in part on the data and using a model(s), one or more audio parameter values, and outputting, via one or more off-ear speakers of the HMD, a sound(s) having one or more audio characteristics based at least in part on the one or more audio parameter values to reduce the noise produced by the fan(s) at a location(s) of an ear(s) of the user of the HMD.
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公开(公告)号：US20230333638A1
公开(公告)日：2023-10-19
申请号：US18341531
申请日：2023-06-26
Applicant: Valve Corporation
Inventor： Joshua Mark Hudman , Kameron Wade Rausch
IPC: G06F3/03 , G06F3/01 , G02F1/139 , G02F1/01 , G06F3/0346
CPC classification number: G06F3/012 , G02F1/0136 , G02F1/1396 , G06F3/0304 , G06F3/0346 , G02F2203/07 , G06F2203/012
Abstract: Systems and methods for tracking the position of a head-mounted display (HMD) system component. The HMD component may carry a plurality of angle sensitive detectors that are able to detect the angle of light emitted from a light source. The HMD component may include one or more scatter detectors that detect whether light has been scattered or reflected, so such light can be ignored. Control circuitry causes light sources to emit light according a specified pattern, and receives sensor data from the plurality of angle sensitive detectors. The processor may process the sensor data and scatter detector data, for example using machine learning or other techniques, to track a position of the HMD component. An angle sensitive detector may include a spatially-varying polarizer having a position-varying polarizing pattern and one or more polarizer layers that together are operative to detect the angle of impinging light.
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Patent Agency Ranking
公开(公告)号：US11733446B2
公开(公告)日：2023-08-22
申请号：US17170500
申请日：2021-02-08
Applicant: Valve Corporation
Inventor： Joshua Mark Hudman , Kameron Wade Rausch
IPC: G02B5/30 , G02B27/01 , G02F1/13363 , G02F1/33
CPC classification number: G02B5/3083 , G02B5/3016 , G02B27/0172 , G02B27/0176 , G02F1/133636 , G02F1/33
Abstract: Improved illumination optics for various applications. The illumination optics may include an optical beam spreading structure that provides a large spread angle for an incident collimated beam or provides finer detail or resolution compared to convention diffractive optical elements. The optical beam spreading structure may include first and second spatially varying polarizers that are optically aligned with each other. The first and second spatially varying polarizers may be formed of a liquid crystal material, such as a multi-twist retarder (MTR). The first and second spatially varying polarizers may diffract light of orthogonal polarization states, which allows for different diffraction patterns to be used in a single optical structure. The two patterns may provide a combined field of view that is larger than either of the first and second fields of view or may provide finer detail or resolution than the first or second fields of view can provide alone.
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公开(公告)号：US11526036B2
公开(公告)日：2022-12-13
申请号：US17167934
申请日：2021-02-04
Applicant: Valve Corporation
Inventor： Joshua Mark Hudman
Abstract: An optical system is provided that includes a correction portion including one or more spatially varying polarizers. A first spatially varying polarizer of the one or more spatially varying polarizers has a first control input configured to receive a first control signal indicating whether the first spatially varying polarizer is to be active or inactive. When active, the first spatially varying polarizer is operative to provide a first optical correction on light passing through the correction portion. The optical system includes a controller configured to determine whether to implement the first optical correction on the light passing through the correction portion and in response to determining to implement the first optical correction on the light passing through the correction portion, output the first control signal indicating the first spatially varying polarizer is to be active. Additional spatially varying polarizers may be controlled to provide additional or alternative optical corrections.
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公开(公告)号：US20220229331A1
公开(公告)日：2022-07-21
申请号：US17712916
申请日：2022-04-04
Applicant: Valve Corporation
Inventor： Joshua Mark Hudman
IPC: G02F1/1335 , G02F1/13363 , F21V8/00
Abstract: Systems and methods for providing a display for an electronic device that includes a liquid crystal display panel assembly, a backlight assembly that includes a light source, and a spatially varying polarizer that provides phase retardation that varies as a function of propagation length away from the light source. The display may also include a linear polarizer and other optical components that improve the efficiency of the backlight assembly, thereby reducing power consumption, cost, space requirements, and provide other advantages.
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公开(公告)号：US20210247631A1
公开(公告)日：2021-08-12
申请号：US17167934
申请日：2021-02-04
Applicant: Valve Corporation
Inventor： Joshua Mark Hudman
Abstract: An optical system is provided that includes a correction portion including one or more spatially varying polarizers. A first spatially varying polarizer of the one or more spatially varying polarizers has a first control input configured to receive a first control signal indicating whether the first spatially varying polarizer is to be active or inactive. When active, the first spatially varying polarizer is operative to provide a first optical correction on light passing through the correction portion. The optical system includes a controller configured to determine whether to implement the first optical correction on the light passing through the correction portion and in response to determining to implement the first optical correction on the light passing through the correction portion, output the first control signal indicating the first spatially varying polarizer is to be active. Additional spatially varying polarizers may be controlled to provide additional or alternative optical corrections.
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公开(公告)号：US20210240038A1
公开(公告)日：2021-08-05
申请号：US17164284
申请日：2021-02-01
Applicant: Valve Corporation
Inventor： Joshua Mark Hudman
IPC: G02F1/1335 , G02F1/13363 , F21V8/00
Abstract: Systems and methods for providing a display for an electronic device that includes a liquid crystal display panel assembly, a backlight assembly that includes a light source, and a spatially varying polarizer that provides phase retardation that varies as a function of propagation length away from the light source. The display may also include a linear polarizer and other optical components that improve the efficiency of the backlight assembly, thereby reducing power consumption, cost, space requirements, and provide other advantages.
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