Rear lamp for vehicle

• US 9,791,122 B2
• Filed: 10/27/2014
• Issued: 10/17/2017
• Est. Priority Date: 04/10/2014
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Yang, Jeong Gyu, Oh, Young Sub, Lee, Bock Cheol
• Primary Examiner(s): Gramling, Sean
• Assistant Examiner(s): Sufleta, II, Gerald J
• Application Number:
  US14/525,136
• Publication Number:
  US 20150292703A1
• Time in Patent Office: 1,086 Days
• Field of Search: 362498-499, 362520
• CPC Class Codes: B60Q 1/0058 Stacked, i.e. one lamp located behind the other in the optical axis direction
• CPC Class Codes: B60Q 1/2607 comprising at least two indicating lamps
• CPC Class Codes: F21S 43/14 Light emitting diodes [LED]
• CPC Class Codes: F21S 43/239 plate-shaped
• CPC Class Codes: F21S 43/245 emitting light from one or more of its major surfaces
• CPC Class Codes: F21S 43/249 with two or more light sources being coupled into the light guide
• CPC Class Codes: F21S 43/33 characterised by their material, surface treatment or coatings
• CPC Class Codes: F21S 43/50 characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers

Abstract

A rear lamp for a vehicle may have a light source module capable of simultaneously implementing functions of a tail lamp and a brake lamp in one lighting region, the light source module including a plurality of light emitting diode (LED) light sources for the tail lamp, a plurality of separation printed circuit boards (PCBs) for the tail lamp controlling current supply into the plurality of LED light sources, a pattern film for the tail lamp having an optic formed to implement three-dimensional emitting images with a desired pattern using light of the plurality of LED light sources, an optical resin stacked on the pattern film and uniformly transferring the light of the plurality of LED light sources across the entire section of the pattern film, and an LED light source for the brake lamp.

Claims

1. A rear lamp for a vehicle, the rear lamp comprising:

a light source module capable of simultaneously implementing functions of a tail lamp and a brake lamp in one lighting region, the light source module including;

a plurality of light emitting diode (LED) light sources for the tail lamp;

a plurality of separation printed circuit boards (PCBs) for the tail lamp controlling current supply into the plurality of LED light sources for the tail lamp and installed to each be electrically connected to each of the plurality of LED light sources for the tail lamp;

a pattern film for the tail lamp simultaneously stacked on the plurality of separation PCBs for the tail lamp and having an optic formed on the pattern film to implement three-dimensional emitting images with a desired pattern using light of the plurality of LED light sources for the tail lamp;

an optical resin stacked on the pattern film for the tail lamp and uniformly transferring the light of the plurality of LED light sources for the tail lamp across an entire section of the pattern film for the tail lamp; and

at least one LED light source for the brake lamp installed between the plurality of LED light sources for the tail lamp and implementing an emitting image of the brake lamp,

wherein the light source module further includes;

a bracket having the separation PCBs for the tail lamp and the at least one LED light source for the brake lamp fixedly installed thereon, integrally covering side portions and rear portions of the stacked pattern film for the tail lamp and the optical resin, and having a circular arc reflecting part formed on the bracket for irradiating light of the at least one LED light source for the brake lamp to a front of the light source module; and

a deposition reflecting surface coupled to a front surface of the bracket opposite to the pattern film for the tail lamp and an inner surface of the reflecting part in the bracket, back-reflecting light of the LED light sources for the tail lamp scattered to a rear of the light source module to the front of the light source module at a time of lighting the LED light sources for the tail lamp, and reflecting light of the at least one LED light source for the brake lamp to the front of the light source module at a time of lighting the LED light source for the brake lamp.

2. The rear lamp of claim 1, wherein the light source module further includes a protecting film stacked on the optical resin, protecting the optical resin and maintaining a shape of the optical resin.

3. The rear lamp of claim 1, wherein the light source module further includes a bezel integrally coupled to the optical resin along an edge of the optical resin and implementing a bezel image by the deposition together with the deposition reflecting surface at the time of the non-lighting of the LED light sources for the tail lamp.

4. The rear lamp of claim 1, wherein a portion of the pattern film for the tail lamp opposite to the circular arc reflecting part is cut, the cut portion of the pattern film for the tail lamp is installed with a pattern film for a brake lamp, and the pattern film for the brake lamp is provided with an optic to implement the emitting image of the brake lamp having a desired pattern using the light of the LED light source for the brake lamp.

5. The rear lamp of claim 4, wherein the optic formed on the pattern film for the brake lamp is formed to have directionality different from the optic formed on the pattern film for the tail lamp to improve light distribution efficiency of the LED light source of the brake lamp.

6. The rear lamp of claim 5, wherein the optic formed on the pattern film for the brake lamp is formed to form an angle of 90°

with respect to the optic formed on the pattern film for the tail lamp.

7. The rear lamp of claim 1, wherein the LED light sources for the tail lamp are installed to be spaced apart from each other by a predetermined interval along a horizontal direction of the bracket at upper and lower portions of the bracket, and the at least one LED light source for the brake lamp is installed at a middle portion in a vertical direction of the bracket or installed one by one between the LED light sources for the tail lamp at the upper and lower portions of the bracket.

8. The rear lamp of claim 1, wherein the light source module is fixed on a lamp housing having one lighting region and the lamp housing is fixedly installed on a vehicle body.

9. The rear lamp of claim 1, wherein the light source module is formed in a flexible plate shape which is bendable to a curved surface.