公开(公告)号：US20250147310A1

公开(公告)日：2025-05-08

申请号：US19020460

申请日：2025-01-14

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Zhongyan Sheng ,  Xi Zhou

IPC: G02B27/01 ,  G02B3/00 ,  G02B5/04 ,  G02B27/09 ,  G02B27/10

Abstract: An apparatus an apparatus includes a light source and freeform optics optically coupled to the light source. The apparatus also includes a spatial light modulator (SLM) optically coupled to the freeform optics and a prism optically coupled between the freeform optics and the SLM. Additionally, the apparatus includes eyepiece optics optically coupled to the prism.

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

IPC: G02B27/01 ,  G02B6/34 ,  G02B27/28 ,  H04N9/31

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.

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

IPC: G02B25/00 ,  G02B17/08 ,  G02B27/01

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.

公开(公告)号：US12242056B2

公开(公告)日：2025-03-04

申请号：US18295048

申请日：2023-04-03

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Zhongyan Sheng ,  Xi Zhou

IPC: G02B5/04 ,  G02B3/00 ,  G02B27/01 ,  G02B27/09 ,  G02B27/10

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.

公开(公告)号：US11765325B2

公开(公告)日：2023-09-19

申请号：US17085483

申请日：2020-10-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Kristofer Scott Oberascher ,  Gregory Scott Pettitt ,  Jeffrey Matthew Kempf ,  Michael Terry Davis ,  Xi Zhou

IPC: H04N9/31 ,  G03B21/20

CPC classification number: H04N9/3117 ,  G03B21/2066 ,  H04N9/3158

Abstract: A system having a color filter having first and second segments. The first and second segments allow respective first and second wavelengths to pass through to a spatial light modulator. The first and second segments also reflect second and first wavelengths, respectively. The reflected first and second wavelengths are recycled and directed towards the color filter.

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

IPC: G02B27/01 ,  G02B5/04 ,  G02B3/00 ,  G02B27/10 ,  G02B27/09

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.