Light source module of lamp for vehicle

Patent metadata

Field	Value
Publication number	US-9416934-B2
Application number	US-201414289053-A
Country	US
Kind code	B2
Filing date	May 28, 2014
Priority date	Dec 18, 2013
Publication date	Aug 16, 2016
Grant date	Aug 16, 2016

Abstract

Disclosed is a light source module for a vehicle. The light source module includes an LED light source, a PCB that controls supply of current to the LED light source, a patterned film disposed on the PCB and provided with an optical pattern which enables a stereoscopic light-emission image of a desired pattern to be formed when light from the LED light source is emitted thereto, and optical resin that is disposed on the patterned film and uniformly transmits the light from the LED light source to the entire range of the patterned film. The light source module improves visibility of the LED light source and makes a lamp using the light source module look luxurious by using a hidden effect of a deposited film even when the LED light source is not turned on.

First claim

What is claimed is:

1. A light source module for a vehicle comprising:
an LED light source;
a Printed Circuit Board (PCB) configured to control supply of current to the LED light source;
a patterned film disposed on the PCB and provided with an optical pattern which enables a stereoscopic light-emission image of a desired pattern to be formed when light from the LED light source is emitted thereto;
an optical resin disposed on the patterned film, the optical resin uniformly transmitting the light from the LED light source to an entire range of the patterned film,
a reflective film disposed between the PCB and the patterned film, the reflective film reflecting the light of the LED light source diffused to a back side, back to a front side when the LED light source is turned on and exhibiting a hidden effect of a deposited film when the LED light source is not turned on;
a protective film disposed on the optical resin, the protective film protecting the optical resin and maintaining a shape of the optical resin,
wherein a pattern-dividing line is formed in the reflective film, and wherein the pattern-dividing line divides an area of the patterned film into a plurality of divided regions when the LED light source is turned on, and
wherein the LED light source is provided for each divided region so that each divided region forms one stereoscopic light-emission image respectively, and each divided region in the patterned film is provided with own optical pattern to form the stereoscopic light-emission image;
a light diffusion preventing film that is formed along the pattern-dividing line, the light diffusion preventing film preventing one stereoscopic image formed by one of the divided regions from intruding on an adjacent divided region of the divided regions,
wherein an assembly slit that penetrates through the protective film and is formed along the pattern-dividing line is formed in the optical resin, and wherein the light diffusion preventing film is installed such that a first end takes root in the assembly slit and a second end protrudes from an outer surface of the protective film.

2. The light source module for the vehicle according to claim 1 , wherein the stereoscopic image is a linear image or a curved image, and the curved image is formed using a plurality of optical patterns each extending in radial directions from a center of a circle.

3. The light source module for the vehicle according to claim 1 , wherein the LED light sources are installed near ends of the pattern-dividing line for the divided regions, respectively, and wherein the LED light sources for the divided regions are arranged at regular intervals.

4. The light source module for the vehicle according to claim 1 , wherein the stereoscopic images formed by each divided region are linear or curved images and each of the curved images is formed using a plurality of optical patterns each extending in radial directions from a center of a circle.

5. The light source module for the vehicle according to claim 1 , wherein the light diffusion preventing film is a bezel-integrated light diffusion preventing film to form a bezel image using effect of a deposited film when the LED light source is not turned on.

6. The light source module for the vehicle according to claim 1 , wherein the second end of the light diffusion preventing film which protrudes from the outer surface of the protective film is provided with a shielding portion disposed in front of the LED light source to prevent light from the LED light source from being directly output to a lens installed in front of the LED light source.

7. The light source module for the vehicle according to claim 1 , further comprising a bezel which is formed along a periphery of the optical resin, and wherein the bezel and the reflective film are used to form a bezel image when the LED light source is not turned on.

8. The light source module for the vehicle according to claim 1 , wherein the light source module is fixed to a lamp housing using a bracket, and the lamp housing is fixed to a body of the vehicle.

9. The light source module for the vehicle according to claim 1 , wherein the light source module is formed with a flexible plate which is bendable in a curved shape.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Yang Jeong Gyu

Classifications

• F21S43/195 Primary

  Details of lamp holders, terminals or connectors · CPC title

• B60Q1/26

  the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic · CPC title

• F21S43/33

  characterised by their material, surface treatment or coatings · CPC title

• G02B30/40

  giving the observer of a single two-dimensional [2D] image a perception of depth · CPC title

• F21W2103/00

  Exterior vehicle lighting devices for signalling purposes · CPC title