Optical device for headlight, automotive lighting device and automobile

Patent metadata

Field	Value
Publication number	US-11268671-B2
Application number	US-201917042343-A
Country	US
Kind code	B2
Filing date	Jul 26, 2019
Priority date	May 20, 2019
Publication date	Mar 8, 2022
Grant date	Mar 8, 2022

Abstract

An optical device for the headlight includes a left-hand drive optical element and a right-hand drive optical element. The left-hand drive optical element includes a left-hand drive light incident part and a left-hand drive transmission part which is arranged in the light emergent end region of the left-hand drive light incident part and extends in the light emergent direction; the light emergent end of the left-hand drive transmission part is provided with a left-hand drive cut-off part capable of forming a left-hand drive cut-off line. The right-hand drive optical element is similarly arranged. The disclosure further relates to the automotive lighting device including the optical device and the automobile including the automotive lighting device.

First claim

The invention claimed is:

1. An optical device for a headlight, comprising a left-hand drive optical element and a right-hand drive optical element, wherein
the left-hand drive optical element comprises a left-hand drive light incident part and a left-hand drive transmission part which is arranged in a light emergent end region of the left-hand drive light incident part and extends in a light emergent direction, and the light emergent end of the left-hand drive transmission part is provided with a left-hand drive cut-off part capable of forming a left-hand drive cut-off line; and
the right-hand drive optical element comprises a right-hand drive light incident part and a right-hand drive transmission part which is arranged in a light emergent end region of the right-hand drive light incident part and extends in the light emergent direction, and the light emergent end of the right-hand drive transmission part is provided with a right-hand drive cut-off part capable of forming a right-hand drive cut-off line;
the left-hand drive cut-off part comprises a left-hand drive cut-off part horizontal line section, a left-hand drive cut-off part turning point section and a left-hand drive cut-off part diagonal section, and the right-hand drive cut-off part comprises a right-hand drive cut-off part horizontal line section, a right-hand drive cut-off part turning point section and a right-hand drive cut-off part diagonal section;
the left-hand drive light incident part, the left-hand drive transmission part, the right-hand drive light incident part and the right-hand drive transmission part are integrally formed and are of a transparent structure, and the thickness of the left-hand drive cut-off part and the right-hand drive cut-off part is greater than or equal to 0.5 mm.

2. An automotive lighting device, comprising a lens and the optical device according to claim 1 , the left-hand drive light incident part is provided with a left-hand drive light source correspondingly, and the right-hand drive light incident part is provided with a right-hand drive light source correspondingly.

3. The automotive lighting device according to claim 2 , wherein the left-hand drive light incident part is internally provided with the left-hand drive light source, and the right-hand drive light incident part is internally provided with the right-hand drive light source.

4. The automotive lighting device according to claim 2 , wherein the left-hand drive light source and the right-hand drive light source are independently arranged and are individually addressable so as to be independently turned on and off.

5. The automotive lighting device according to claim 2 , wherein the left-hand drive light source and the right-hand drive light source are each composed of one or more LED light sources or laser light sources.

6. The automotive lighting device according to any one of claims 2 to 5 , wherein the left-hand drive cut-off part and the right-hand drive cut-off part are located in the focal region of the lens.

7. An automobile, comprising the automotive lighting device according to claim 2 .

8. The optical device for the headlight according to claim 1 , wherein the left-hand drive light incident part and the right-hand drive light incident part each comprise a light source connection portion and a lampshade, each light source connection portion is a concave arc surface cavity, and each lampshade is a horn-shaped light condensing cup which is gradually enlarged from an end close to the corresponding light source to an end away from the corresponding light source.

9. The optical device for the headlight according to claim 1 , wherein the left-hand drive cut-off part horizontal line section and the right-hand drive cut-off part horizontal line section are of a horizontal concave structure.

10. The optical device for the headlight according to claim 1 , wherein the left-hand drive transmission part and the right-hand drive transmission part are both of a hollow closed structure, the light emergent end of the left-hand drive light incident part is located in the hollow closed structure of the left-hand drive transmission part, the light emergent end of the right-hand drive light incident part is located in the hollow closed structure of the right-hand drive transmission part, and the joint between the left-hand drive transmission part and the right-hand drive transmission part forms a narrow-end-up wedge-shaped cavity with openings at the upper end and the lower end;
wherein, the left-hand drive cut-off part diagonal section, the left-hand drive cut-off part turning point section, the right-hand drive cut-off part diagonal section and the right-hand drive cut-off part turning point section are arranged at the light emergent end of the wedge-shaped cavity.

11. An optical device for a headlight, comprising a left-hand drive optical element and a right-hand drive optical element, wherein
the left-hand drive optical element comprises a left-hand drive light incident part and a left-hand drive transmission part which is arranged in a light emergent end region of the left-hand drive light incident part and extends in a light emergent direction, and the light emergent end of the left-hand drive transmission part is provided with a left-hand drive cut-off part capable of forming a left-hand drive cut-off line; and
the right-hand drive optical element comprises a right-hand drive light incident part and a right-hand drive transmission part which is arranged in a light emergent end region of the right-hand drive light incident part and extends in the light emergent direction, and the light emergent end of the right-hand drive transmission part is provided with a right-hand drive cut-off part capable of forming a right-hand drive cut-off line;
the left-hand drive light incident part and the left-hand drive transmission part are integrally formed and are of a transparent structure, the right-hand drive light incident part and the right-hand drive transmission part are integrally formed and are of a transparent structure; and the left-hand drive transmission part and the right-hand drive transmission part are independently arranged; and
the thickness of the left-hand drive cut-off part and the right-hand drive cut-off part is greater than or equal to 0.5 mm.

12. An automotive lighting device, comprising a lens and the optical device according to claim 11 , the left-hand drive light incident part is provided with a left-hand drive light source correspondingly, and the right-hand drive light incident part is provided with a right-hand drive light source correspondingly.

13. The automotive lighting device according to claim 12 , wherein the left-hand drive light source and the right-hand drive light source are each composed of one or more LED light sources or laser light sources.

14. The automotive lighting device according to claim 12 , wherein the left-hand drive light source and the right-hand drive light source are independently arranged and are individually addressable so as to be independently turned on and off.

15. The automotive lighting device according to claim 12 , wherein the left-hand drive light incident part is internally provided with the left-hand drive light source, and the right-hand drive light incident part is internally provided with the right-hand drive light source.

16. The automotive lighting device according to any one of claims 12 to 15 , wherein the left-hand drive cut-off part and the right-hand drive cut-off part are located in the focal region of the lens.

17. An automobile, comprising the automotive lighting

Assignees

• Hasco Vision Tech Co Ltd

Inventors

• Zhu He
• Qiu Zhiping
• Li Hui
• Li Cong

Classifications

• F21S41/336

  with discontinuity at the junction between adjacent areas · CPC title

• F21S41/147

  the main emission direction of the LED being angled to the optical axis of the illuminating device · CPC title

• F21S41/43

  characterised by the shape thereof · CPC title

• F21S41/20 Primary

  characterised by refractors, transparent cover plates, light guides or filters · CPC title

• F21S41/663

  by switching light sources (by switching incandescent light sources F21S41/162) · CPC title