Lamp for vehicle and vehicle including the same

Patent metadata

Field	Value
Publication number	US-11560995-B1
Application number	US-202217806785-A
Country	US
Kind code	B1
Filing date	Jun 14, 2022
Priority date	Jul 28, 2021
Publication date	Jan 24, 2023
Grant date	Jan 24, 2023

Abstract

A lamp for a vehicle including a light source configured to emit light, and a light guide body including a light entering portion, a light exiting portion, and a recessed region disposed between the light entering portion and the light exiting portion and having a shape recessed upward in a lower surface of the light guide body, in which the recessed region includes a first surface formed in a region adjacent to the light entering portion, a second surface connected to the first surface through a first connection portion and extending toward the light exiting portion, and a third surface connected to the second surface through a second connection portion and extending toward the light exiting portion, and in which the second connection portion includes a curved connection portion.

First claim

What is claimed is:

1. A lamp for a vehicle, the lamp comprising:
a light source; and
a light guide body including a light entering portion disposed at one side of the light source, a light exiting portion configured such that light entering the light entering portion exits the light exiting portion, and a recessed region disposed between the light entering portion and the light exiting portion and having a shape recessed upward in a lower surface of the light guide body,
wherein the recessed region comprises:
a first surface formed in a region adjacent the light entering portion;
a second surface connected to the first surface through a first connection portion and extending toward the light exiting portion; and
a third surface connected to the second surface through a second connection portion and extending toward the light exiting portion,
wherein the second connection portion comprises a curved connection portion.

2. The lamp of claim 1 , wherein the second surface is parallel with an optical axis of the light exiting portion.

3. The lamp of claim 1 , wherein the second connection portion further comprises straight connection portions formed at two opposite sides of the curved connection portion.

4. The lamp of claim 3 , wherein the recessed region further comprises a cut-off portion provided on the second surface and having a stepped shape.

5. The lamp of claim 4 , wherein the cut-off portion comprises:
a lower cut-off portion formed at one side in a leftward/rightward direction based on a direction from the light entering portion to the light exiting portion;
an upper cut-off portion formed at another side in leftward/rightward direction based on the direction from the light entering portion to the light exiting portion and disposed upward from the lower cut-off portion; and
a stepped cut-off portion configured to connect the lower cut-off portion and the upper cut-off portion.

6. The lamp of claim 5 , wherein the curved connection portion comprises:
an upper curved connection portion formed in a section in which the upper cut-off portion of the recessed region and the third surface meet; and
a lower curved connection portion formed in a section in which the lower cut-off portion of the recessed region and the third surface meet.

7. The lamp of claim 5 , wherein the curved connection portion further comprises a stepped curved connection portion formed in a section in which the stepped cut-off portion of the recessed region and the third surface meet.

8. The lamp of claim 5 , wherein the straight connection portions comprise:
an upper straight connection portion formed in a section in which the upper cut-off portion of the recessed region and the third surface meet; and
a lower straight connection portion formed in a section in which the lower cut-off portion of the recessed region and the third surface meet.

9. The lamp of claim 1 , wherein the curved connection portion has a predetermined curvature.

10. The lamp of claim 1 , wherein the curved connection portion has a shape corresponding to a line connecting a plurality of focal points formed for respective colors of the light emitted from the light source and entering through the light entering portion.

11. The lamp of claim 1 , wherein the curved connection portion has a shape recessed in a direction from the light exiting portion to the light entering portion.

12. The lamp of claim 11 , wherein the third surface is connected to the second surface through the second connection portion and comprises a vertical surface having a vertical cross-section corresponding to a shape of the second connection portion as the second connection portion vertically extends downward.

13. The lamp of claim 12 , wherein the third surface further comprises:
a horizontal surface connected to the vertical surface; and
an inclined surface connected to the horizontal surface and inclined downward in the direction from the light entering portion to the light exiting portion.

14. The lamp of claim 1 , wherein the first surface has a shape inclined upward in a direction from the light entering portion to the light exiting portion.

15. The lamp of claim 1 , wherein the second connection portion is formed symmetrically in a leftward/rightward direction with respect to a central portion of the light guide body when viewing the light guide body from above.

16. The lamp of claim 1 , wherein the light entering portion has a curved shape convexly protruding toward the light source.

17. The lamp of claim 1 , wherein the light exiting portion has a curved shape protruding in a direction in which the light entering through the light entering portion exits.

18. A vehicle comprising:
a lamp for a vehicle, comprising:
a light source; and
a light guide body including a light entering portion disposed at one side of the light source, a light exiting portion configured such that light entering the light entering portion exits the light exiting portion, and a recessed region disposed between the light entering portion and the light exiting portion and having a shape recessed upward in a lower surface of the light guide body,
wherein the recessed region comprises:
a first surface formed in a region adjacent the light entering portion;
a second surface connected to the first surface through a first connection portion and extending toward the light exiting portion; and
a third surface connected to the second surface through a second connection portion and extending toward the light exiting portion,
wherein the second connection portion comprises a curved connection portion.

Assignees

• Hyundai Mobis Co Ltd

Inventors

• Lee Hyun Soo

Classifications

• F21S41/143 Primary

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

• F21S41/24 Primary

  Light guides · CPC title

• F21S41/25

  Projection lenses · CPC title

• F21S41/43

  characterised by the shape thereof · CPC title

• F21S41/322

  the reflector using total internal reflection · CPC title