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公开(公告)号：US12112493B2
公开(公告)日：2024-10-08
申请号：US16213634
申请日：2018-12-07
Applicant: Texas Instruments Incorporated
Inventor： Srikanth Gurrapu , Yangxi Wang , Zhongyan Sheng
CPC classification number: G06T7/521 , G03B21/008 , G06T7/70 , G06T2207/10028
Abstract: Described examples include a structured light projector including a light source. The structured light projector also includes a spatial light modulator arranged to modulate light from the light source. The structured light projector also includes a diffractive optical element arranged to modulate the light from the light source. The structured light projector further includes projection optics arranged to project the light modulated by the spatial light modulator and the diffractive optical element to a target.
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公开(公告)号：US20230236420A1
公开(公告)日：2023-07-27
申请号：US18295048
申请日：2023-04-03
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Zhongyan Sheng , Xi Zhou
CPC classification number: G02B27/017 , G02B3/0075 , G02B5/04 , G02B27/102 , G02B27/0922 , G02B2027/0178 , G02B2027/0185
Abstract: An apparatus includes a light source configured to produce light and a prism. The apparatus also includes freeform optics optically coupled between the light source and the prism, the freeform optics configured to direct the light towards the prism and eyepiece optics optically coupled to the prism. Additionally, the apparatus includes a spatial light modulator (SLM) optically coupled to the prism, the prism configured to direct the light towards the SLM, the SLM configured to modulate the light to produce modulated light, and the prism configured to direct the modulated light towards the eyepiece optics.
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公开(公告)号：US20210018752A1
公开(公告)日：2021-01-21
申请号：US16930146
申请日：2020-07-15
Applicant: Texas Instruments Incorporated
Inventor： Zhongyan Sheng
Abstract: A near eye display apparatus includes: a lens having a viewing area, the lens comprising a waveguide having a waveguide input and a waveguide output optically coupled to the viewing area; an optical projector having a projector output, the optical projector comprising an illumination source optically coupled to the optical prism element and configured to provide illumination light into the optical prism element at a particular direction, a spatial light modulator optically coupled to the optical prism element and configured to receive the illumination light from the optical prism element and to reflect patterned light, the optical prism element configured to provide the patterned light to the projector output at the particular direction; and an optical folding element optically coupled between the projector output and the waveguide input, the optical folding element configured to fold an optical path of the patterned light in at least two different directions.
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公开(公告)号：US20200184662A1
公开(公告)日：2020-06-11
申请号：US16213634
申请日：2018-12-07
Applicant: Texas Instruments Incorporated
Inventor： Srikanth Gurrapu , Yangxi Wang , Zhongyan Sheng
Abstract: Described examples include a structured light projector including a light source. The structured light projector also includes a spatial light modulator arranged to modulate light from the light source. The structured light projector also includes a diffractive optical element arranged to modulate the light from the light source. The structured light projector further includes projection optics arranged to project the light modulated by the spatial light modulator and the diffractive optical element to a target.
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公开(公告)号：US20190230326A1
公开(公告)日：2019-07-25
申请号：US16235883
申请日：2018-12-28
Applicant: Texas Instruments Incorporated
Inventor： Zhongyan Sheng , Gregory Scott Pettitt
Abstract: In described examples, a digital light processing color projector includes light emitters configured to collectively emit light at multiple wavelengths, multiple light directing elements forming an illumination path having at least one aperture stop, a micromirror array coupled to a substrate, an aperture located at the aperture stop, and a filter with a selected color transmittance profile located at or near the aperture stop. The light directing elements are configured to direct light towards the micromirror array as illumination light. An aperture width determines a diameter of the illumination light. A micromirror on-state reflects the illumination light as on-state light. The substrate reflects the illumination light as flat-state light. The light directing elements direct on-state light through the aperture to a projector output. The filter filters flat-state light in an overlap region of the on-state light and flat-state light, or an illumination light portion corresponding to overlap region.
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Patent Agency Ranking
公开(公告)号：US12164110B2
公开(公告)日：2024-12-10
申请号：US17890107
申请日：2022-08-17
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Zhongyan Sheng , Xi Zhou
Abstract: An apparatus for a near eye display includes an optical waveguide coupler adapted to be optically coupled to one or more light sources, a first prism optically coupled to the optical waveguide coupler, a second prism coupled to the first prism where the first prism faces a first side of the second prism, a spatial light modulator (SLM) optically coupled to the second prism where the SLM faces a second side of the second prism, and focusing optics optically coupled to the second prism where the focusing optics face a third side of the second prism.
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公开(公告)号：US20240094523A1
公开(公告)日：2024-03-21
申请号：US18343172
申请日：2023-06-28
Applicant: Texas Instruments Incorporated
Inventor： Xi Zhou , Zhongyan Sheng
CPC classification number: G02B25/001 , G02B17/0856 , G02B27/0172
Abstract: In one example, an eyepiece has a one-piece shape that is solid and rotationally asymmetric. The eyepiece includes first, second and third surfaces at least partially defining the one-piece shape. The first surface is configured to receive a spatially modulated light beam. The second surface is configured to internally reflect the spatially modulated light beam toward the third surface. The third surface is configured to reflect the spatially modulated light beam toward and through the second surface. Transmission of the spatially modulated light beam through the second surface concentrates the spatially modulated light beam.
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公开(公告)号：US11526014B2
公开(公告)日：2022-12-13
申请号：US16930146
申请日：2020-07-15
Applicant: Texas Instruments Incorporated
Inventor： Zhongyan Sheng
Abstract: A near eye display apparatus includes: a lens having a viewing area, the lens comprising a waveguide having a waveguide input and a waveguide output optically coupled to the viewing area; an optical projector having a projector output, the optical projector comprising an illumination source optically coupled to the optical prism element and configured to provide illumination light into the optical prism element at a particular direction, a spatial light modulator optically coupled to the optical prism element and configured to receive the illumination light from the optical prism element and to reflect patterned light, the optical prism element configured to provide the patterned light to the projector output at the particular direction; and an optical folding element optically coupled between the projector output and the waveguide input, the optical folding element configured to fold an optical path of the patterned light in at least two different directions.
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公开(公告)号：US11373623B1
公开(公告)日：2022-06-28
申请号：US17139831
申请日：2020-12-31
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Zhongyan Sheng
Abstract: In some examples, an apparatus includes a light source. The light source is configured to operate in a first mode by emitting light during a first period of time during which a display screen reflecting the light is substantially opaque. The light source is also configured to operate in a second mode by not emitting light during a second period of time during which the display screen is substantially transparent. The light source is also configured to repeatedly alternate between the first mode and the second mode to create a perception of an image resulting from the display screen reflecting the light being displayed on a transparent screen.
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公开(公告)号：US11340520B2
公开(公告)日：2022-05-24
申请号：US15097525
申请日：2016-04-13
Applicant: Texas Instruments Incorporated
Inventor： Zhongyan Sheng , Terry Alan Bartlett
Abstract: In described examples, a body includes an opening in a central portion of a surface, a cavity having sides extending from the opening into the body, and a bottom surface within the body supporting a phosphor configured to emit light when energized by incoming light. In a further arrangement, the sides are tapered from the opening to the bottom surface, such that a cross sectional area of the opening is greater than a cross sectional area of the bottom surface.
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