公开(公告)号：US20230151941A1

公开(公告)日：2023-05-18

申请号：US18155986

申请日：2023-01-18

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Shashank Dabral ,  Gavin Perrella ,  Akeem Whitehead

IPC: F21S41/65 ,  H05B45/325 ,  B60Q1/14 ,  F21S41/675

CPC classification number: F21S41/65 ,  H05B45/325 ,  B60Q1/1423 ,  F21S41/675 ,  B60Q2300/05

Abstract: An apparatus includes an illumination source including a first illumination source segment and a second illumination source segment. The apparatus also includes driver circuitry coupled to the illumination source, the driver circuitry including a first driver coupled to the first illumination source segment, the first driver configured to produce a first drive signal to instruct the first illumination source segment to produce a first light having a first illumination intensity. The driver circuitry also includes a second driver coupled to the second illumination source segment, the second driver configured to produce a second drive signal to instruct the second illumination source segment to produce a second light having a second illumination intensity.

公开(公告)号：US20230008219A1

公开(公告)日：2023-01-12

申请号：US17565688

申请日：2021-12-30

Applicant: Texas Instruments Incorporated

Inventor： Shashank Dabral ,  Gavin Perrella ,  Akeem Whitehead

IPC: F21S41/65 ,  F21S41/675 ,  B60Q1/14 ,  H05B45/325

Abstract: An example headlight includes: a multi-segment illumination source comprising: a first illumination source segment; and a second illumination source segment; driver circuitry coupled to the multi-segment illumination source, the driver circuitry comprising: a first driver coupled to the first illumination source segment, the first driver configured to generate a first drive signal to cause the first illumination source segment to produce a first light having a first brightness; and a second driver coupled to the second illumination source segment, the second driver configured to generate a second drive signal to cause the second illumination source segment to produce a second light having a second brightness; and a spatial light modulator (SLM) optically coupled to the multi-segment illumination source, the SLM configured to: receive the first light; modulate the first light to produce first modulated light; receive the second light; and modulate the second light to produce second modulated light.

公开(公告)号：US11592154B2

公开(公告)日：2023-02-28

申请号：US17565688

申请日：2021-12-30

Applicant: Texas Instruments Incorporated

Inventor： Shashank Dabral ,  Gavin Perrella ,  Akeem Whitehead

IPC: B60Q1/14 ,  H05B45/30 ,  H05B45/325 ,  F21S41/65 ,  F21S41/675

Abstract: An example headlight includes: a multi-segment illumination source comprising: a first illumination source segment; and a second illumination source segment; driver circuitry coupled to the multi-segment illumination source, the driver circuitry comprising: a first driver coupled to the first illumination source segment, the first driver configured to generate a first drive signal to cause the first illumination source segment to produce a first light having a first brightness; and a second driver coupled to the second illumination source segment, the second driver configured to generate a second drive signal to cause the second illumination source segment to produce a second light having a second brightness; and a spatial light modulator (SLM) optically coupled to the multi-segment illumination source, the SLM configured to: receive the first light; modulate the first light to produce first modulated light; receive the second light; and modulate the second light to produce second modulated light.

公开(公告)号：US10598331B1

公开(公告)日：2020-03-24

申请号：US16204640

申请日：2018-11-29

Applicant: Texas Instruments Incorporated

Inventor： Vikrant R. Bhakta ,  Gavin Perrella

IPC: F21V5/00 ,  F21S41/675 ,  F21S41/27 ,  F21S41/36 ,  F21S41/20 ,  F21W107/10

Abstract: Described examples include a projection device having a light source. The projection device also has a spatial light modulator arranged to receive light from the light source and provide modulated light. The projection device also has projection optics arranged to receive and project the modulated light. The projection device also has a field splitting element between the spatial light modulator and the projection optics, a first portion of the field splitting element being structured to pass at least a first portion of the modulated light to the projection optics for projection at a first focal length, and a second portion of the field splitting element being structured to pass at least a second portion of the modulated light to the projection optics for projection at a second focal length.