IP Library Granted Patent US 11,603,975
Granted Patent B1
US 11,603,975 · App. 17/587,232 · Granted Mar 14, 2023

Dynamic adjustment of forward lighting projection lens using photochromatic material

Inventors: Shailesh N Joshi (Ann Arbor, MI); Ercan M Dede (Ann Arbor, MI)
Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
F21S41/635B60Q1/06F21S41/25F21S41/29B60Q2300/112B60Q2300/12B60Q2300/30
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Quick Facts
Patent No.
US 11,603,975
App. No.
17/587,232
Granted
Mar 14, 2023
Kind
B1
Abstract

Systems, apparatus, methods, and computer program products to enhance the operation of a light system. A light apparatus includes an optical member to project light, one or more elastically deformable position adjustment members, and one or more light sources. The elastically deformable position adjustment members are operable to adjust a mounting position of the optical member, and include one or more photochromatic regions to facilitate movement of the one or more elastically deformable position adjustment members from a contracted state to an expanded state in response to exposure to UV light. The one or more light sources operable to selectively emit illuminating UV light in a direction that contacts the one or more photochromatic regions to thereby adjust a mounting position of the optical member and change a direction of light emitted by the lighting apparatus.

Claims (31)

1. A light apparatus, comprising:

an optical member to project light;

one or more elastically deformable position adjustment members operable to adjust a mounting position of the optical member, the one or more elastically deformable position adjustment members having one or more photochromatic regions to facilitate movement of the one or more elastically deformable position adjustment members from a contracted state to an expanded state in response to exposure to ultraviolet (UV) light; and

one or more light sources operable to selectively emit illuminating UV light in a direction that contacts the one or more photochromatic regions to thereby adjust a mounting position of the optical member and change a direction of light emitted by the lighting apparatus.

2. The light apparatus of claim 1 , wherein:

the one or more elastically deformable position adjustment members comprises a polymer substrate, and

the one or more photochromatic regions are composed of a photochromatic material that is embedded into the polymer substrate.

3. The light apparatus of claim 2 , wherein the photochromatic material comprises an organic photochromatic material.

4. The light apparatus of claim 3 , wherein the organic photochromatic material comprises spiropyran.

5. The light apparatus of claim 1 , wherein the one or more light sources comprise LED light sources.

6. The light apparatus of claim 1 , wherein the one or more elastically deformable position adjustment members are arranged spaced apart on a surface of the optical member.

7. The light apparatus of claim 1 , wherein the one or more elastically deformable position adjustment members are interconnected to each other on a surface of the optical member.

8. A lighting system, comprising:

a light apparatus that includes an optical member to project light; one or more elastically deformable position adjustment members operable to adjust a mounting position of the optical member, the one or more elastically deformable position adjustment members having one or more photochromatic regions to facilitate movement of the one or more elastically deformable position adjustment members from a contracted state to an expanded state in response to exposure to ultraviolet (UV) light; and one or more light sources operable to selectively emit illuminating UV light in a direction that contacts the one or more photochromatic regions to thereby adjust a mounting position of the optical member and change a direction of light emitted by the lighting apparatus; and

a controller, operatively coupled to the one or more light sources, the controller including one or more processors and a non-transitory memory operatively coupled to the one or more processors comprising a set of instructions executable by the one or more processors to cause the one or more processors to:

dynamically conduct an analysis of sensor data; and

dynamically adjust, in response to the analysis of the sensor data, a direction of emission of light by the light apparatus by causing movement of the optical member through a selective actuation of the one or more light sources.

9. The lighting system of claim 8 , wherein the sensor data relates to an operational environment of a vehicle.

10. The lighting system of claim 8 , wherein the sensor data comprises image sensor data of an external operational environment of a vehicle.

11. The lighting system of claim 8 , wherein the sensor data comprises vehicle steering sensor data during operation of the vehicle.

12. The lighting system of claim 8 , wherein the sensor data comprises vehicle speed sensor data during operation of the vehicle.

13. The lighting system of claim 8 , wherein the set of instructions cause the one or more processors to dynamically adjust the direction of light emitted by the light apparatus by selectively adjusting an intensity of the UV light emitted by the one or more light sources.

14. A computer implemented method of operating a light apparatus that includes an optical member to project light; one or more elastically deformable position adjustment members operable to adjust a mounting position of the optical member, the one or more elastically deformable position adjustment members having one or more photochromatic regions to facilitate movement of the one or more elastically deformable position adjustment members from a contracted state to an expanded state in response to exposure to ultraviolet (UV) light; and one or more light sources operable to selectively emit illuminating UV light in a direction that contacts the one or more photochromatic regions, the computer implemented method comprising:

dynamically conducting an analysis of sensor data; and

dynamically adjust, in response to the analysis of the sensor data, a direction of light emitted by the light apparatus by causing an adjustment in a mounting position of the optical member through a selective actuation of the one or more light sources.

15. The computer implemented method of claim 14 , wherein the sensor data relates to an operational environment of a vehicle.

16. The computer implemented method of claim 14 , wherein the sensor data comprises image sensor data of an external operational environment of a vehicle.

17. The computer implemented method of claim 14 , wherein the sensor data comprises vehicle steering sensor data during operation of the vehicle.

18. The computer implemented method of claim 14 , wherein the sensor data comprises vehicle speed sensor data during operation of the vehicle.

19. The computer implemented method of claim 14 , wherein dynamically adjusting the direction of light emitted by the light apparatus comprises selectively adjusting an intensity of the UV light emitted by the one or more light sources.

20. The computer implemented method of claim 14 , wherein dynamically adjusting the direction of light emitted by the light apparatus comprises selectively adjusting a position of the one or more light sources.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 19, 2023
From: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
To: TOYOTA JIDOSHA KABUSHIKI KAISHA
Reel/Frame 063373/0227 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 31, 2022
From: JOSHI, SHAILESH N.; DEDE, ERCAN M.
To: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC
Reel/Frame 058832/0512 →
Cited By (1)
US 12,487,474