Lamp for vehicle

Patent metadata

Field	Value
Publication number	US-11668449-B2
Application number	US-202217691197-A
Country	US
Kind code	B2
Filing date	Mar 10, 2022
Priority date	May 18, 2021
Publication date	Jun 6, 2023
Grant date	Jun 6, 2023

Abstract

A vehicle lamp includes a light source unit including a plurality of light emitting units for forming different beam patterns, and an optical unit disposed in front of the light source unit for transmitting light generated from the light source unit to form a predetermined beam pattern. The plurality of light emitting units includes a first light emitting unit for forming a first beam pattern and a second light emitting unit disposed around the first light emitting unit for forming a second beam pattern different from the first beam pattern.

First claim

What is claimed is:

1. A lamp for a vehicle comprising:
a light source unit including a plurality of light emitting units for forming different beam patterns;
an optical unit disposed in front of the light source unit for transmitting light generated from the light source unit to form a predetermined beam pattern, wherein the optical unit comprises a plurality of lenses arranged in a front-rear direction; and
a reflector disposed in at least one of an upper end or a lower end of the plurality of lenses and between the plurality of lenses,
wherein the plurality of light emitting units comprise,
a first light emitting unit for forming a first beam pattern; and
a second light emitting unit disposed around the first light emitting unit for forming a second beam pattern different from the first beam pattern,

wherein the first light emitting unit is disposed closer to an optical axis of the optical unit than the second light emitting unit, and
wherein a light amount generated by the first light emitting unit is greater than a light amount generated by the second light emitting unit.

2. The lamp for a vehicle of claim 1 , wherein the first light emitting unit and the second light emitting unit are installed on a same substrate.

3. The lamp for a vehicle of claim 1 , wherein the first light emitting unit constitutes a head lamp, and the second light emitting unit constitutes a position lamp.

4. The lamp for a vehicle of claim 1 , wherein the second light emitting unit constitutes a daytime running lamp.

5. The lamp for a vehicle of claim 1 , wherein a center of a light emitting region of the first light emitting unit is disposed at or near an optical axis of the optical unit.

6. The lamp for a vehicle of claim 1 , wherein the second light emitting unit comprises at least one light emitting module disposed around the first light emitting unit, and
wherein the at least one light emitting module is disposed in at least one direction of an up-down direction, a left-right direction, or a diagonal direction with respect to the first light emitting unit.

7. The lamp for a vehicle of claim 1 , wherein the light emitted from the optical unit is guided by a light guide unit, in which a guide aperture of a predetermined size is formed, and
wherein the first light emitting unit and the second light emitting unit are disposed within a preset region having a size of about 50% or less of a size of the guide aperture.

8. The lamp for a vehicle of claim 1 , wherein the plurality of lenses comprise a first lens for concentrating the light generated from the light source unit and a second lens disposed in front of the first lens to allow the light emitted from the first lens to be incident thereto, and
wherein the reflector has a rear end having a shape corresponding to the first lens, and a front end having a shape corresponding to the second lens.

9. The lamp for a vehicle of claim 1 , wherein at least one of the plurality of lenses comprises:
a plurality of incident lenses;
a plurality of emitting lenses, through which light incident to the plurality of incident lenses is emitted; and
a plurality of shields disposed between an incident lens and an emitting lens corresponding to each other among the plurality of incident lenses and the plurality of emitting lenses.

10. A vehicle lamp capable of operating in at least a first operation mode and a second operation mode, the vehicle lamp comprising:
one or more first lamp modules; and
one or more second lamp modules,
wherein each of the first lamp modules and the second lamp modules comprises:
a light source unit including a first light emitting unit and a second light emitting unit to generate light; and
an optical unit disposed in front of the light source unit for transmitting the light generated from the light source unit to form a predetermined beam pattern,
wherein the first light emitting unit is disposed closer to an optical axis of the optical unit than the second light emitting unit,

wherein, in the first operation mode, the first light emitting unit of the first lamp modules is turned on, and the second lamp modules are turned on, whereby all of the first lamp modules and the second lamp modules are lit to produce a first beam pattern,
wherein, in the second operation mode, the second light emitting unit of the first lamp modules is turned on, and the second lamp modules are turned on, whereby all of the first lamp modules and the second lamp modules are lit to produce a second beam pattern, which is different from the first beam pattern,
wherein, in the first operation mode, the first lamp modules function as a head lamp, and the second lamp modules function as a position lamp, and
wherein, in the second operation mode, the second lamp modules function as a daytime running lamp, and the first lamp modules perform an auxiliary function to assist the daytime running lamp.

11. The vehicle lamp of claim 10 , wherein the first lamp modules and the second lamp modules are alternatively arranged adjacent to one another.

Assignees

• Sl Corp

Inventors

• Go Dong Hyun
• Han Hyo Jin
• Seo Tae Seok
• Chang Joo Jin
• Son Young Ho
• Woo Jun Woo

Classifications

• F21S43/15

  Strips of light sources · CPC title

• F21S43/40

  characterised by the combination of reflectors and refractors · CPC title

• F21S45/48

  with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device · CPC title

• F21S41/24

  Light guides · CPC title

• F21S41/00 Primary

  Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps (reversing lights F21S43/00) · CPC title