Lamp for vehicle

Patent metadata

Field	Value
Publication number	US-9447941-B2
Application number	US-201414579109-A
Country	US
Kind code	B2
Filing date	Dec 22, 2014
Priority date	Mar 13, 2014
Publication date	Sep 20, 2016
Grant date	Sep 20, 2016

Abstract

A lamp for a vehicle includes a light-emitting unit including a light source and a reflector, a shield unit to form a beam pattern by blocking at least some of the light generated by the light-emitting unit, and a lens unit disposed at the front of the shield unit. The shield unit includes a first shield, which forms a first region of the shield unit, and a second shield, which is driven to cover or uncover a second region of the shield unit. The lamp, with a simpler structure, can form various beam patterns while sufficiently securing a driver's field of view.

First claim

What is claimed is:

1. A lamp for a vehicle, comprising:
a light-emitting unit including a light source generating light and a reflector to reflect forward the light generated by the light source;
a shield unit to form a beam pattern by blocking at least some of the light generated by the light-emitting unit; and
a lens unit disposed at a front of the shield unit,
wherein the shield unit includes a first shield, which forms a first region of the shield unit, and a second shield, which is driven to cover or uncover a second region of the shield unit,
wherein a reflective layer for reflecting the light blocked by the shield unit toward an upper side of the lens unit is formed on at least a portion of the shield unit.

2. The lamp of claim 1 , wherein the shield unit has a shape of a plate that is at least partially horizontal.

3. The lamp of claim 1 , wherein the first shield is fixedly installed.

4. The lamp of claim 1 , wherein the first shield includes a mounting groove, on or from which the second shield is mounted or removed.

5. The lamp of claim 1 , wherein the second region is a region formed to extend from a front end of the shield unit to a rearward direction.

6. The lamp of claim 1 , wherein the second shield uncovers the second region by being rotated about a rotation axis to the front of the shield unit.

7. The lamp of claim 1 , wherein a guide area is formed at least one side of the second shield.

8. The lamp of claim 7 , wherein the guide area includes a guide groove into which a guide protrusion that is formed on the first shield is inserted.

9. The lamp of claim 1 , wherein the shield unit forms a low beam pattern in response to the second region being covered and forms a high beam pattern in response to the second region being uncovered.

10. The lamp of claim 9 , wherein the shield unit reflects light blocked by the first shield toward the upper side of the lens unit in response to the second region being uncovered.

11. The lamp of claim 1 , wherein the light-emitting unit includes a first light source module and a second light source module, which are disposed in different directions from each other with respect to an optical axis.

12. The lamp of claim 11 , wherein the first light source module is disposed above the optical axis and the second light source module is disposed below the optical axis.

13. The lamp of claim 1 , wherein the light-emitting unit further includes an auxiliary reflector disposed near the light source.

14. The lamp of claim 13 , wherein the auxiliary reflector is disposed at a front side of the light source to reflect light emitted from the light source to travel beyond a reflective region of the reflector back to the reflective region of the reflector.

15. The lamp of claim 13 , wherein the auxiliary reflector is disposed at a rear side of the light source to reflect light emitted from the light source to form a reinforcement beam pattern.

16. The lamp of claim 1 , wherein the shield unit further includes a light-transmitting portion, which is formed between the first shield and the second shield in response to the second region being covered.

17. The lamp of claim 16 , wherein the light-transmitting portion is formed near a rear focal point of the lens unit.

18. The lamp of claim 16 , wherein the light-transmitting portion forms a reinforcement beam pattern, which reinforces a predetermined portion of a beam pattern formed by the shield unit blocking some of the light generated by the light-emitting unit.

19. The lamp of claim 18 , wherein the light-emitting unit includes a plurality of light-emitting modules, which are disposed in different directions from each other with respect to an optical axis, and the light-transmitting portion transmits therethrough light generated by at least one of the plurality of light-emitting modules so as to reinforce a predetermined portion of a beam pattern formed by the shield unit blocking some of the light generated by another one of the plurality of light-emitting modules.

Assignees

• Sl Corp

Inventors

• Youn Sung Wook
• Kim Dae Kyeom
• Han Hyo Jin
• Park Ki Beom
• Park Jin Young

Classifications

• F21S41/148

  the main emission direction of the LED being perpendicular to the optical axis · CPC title

• F21S41/255

  Lenses with a front view of circular or truncated circular outline · CPC title

• F21S41/663

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

• F21S41/321

  the reflector being a surface of revolution or a planar surface, e.g. truncated · CPC title

• F21S41/692

  Shields, i.e. screens not creating an image meant to be projected · CPC title