TRAFFIC DIRECTION LIGHTS

• US 20160011362A1
• Filed: 05/14/2015
• Published: 01/14/2016
• Est. Priority Date: 07/11/2014
• Status: Abandoned Application

• Current Assignee: Chien-Chung Jeng
• Original Assignee: Chien-Chung Jeng
• Inventors: JENG, CHIEN-CHUNG
• Application Number:
  US14/711,837
• Publication Number:
  US 20160011362A1
• Time in Patent Office: Days
• US Class Current: 1/1
• 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: G02B 6/0043 provided on the surface of the light guide
• CPC Class Codes: G02B 6/0046 Tapered light guide, e.g. wedge-shaped light guide
• CPC Class Codes: G02B 6/0051 Diffusing sheet or layer
• CPC Class Codes: G02B 6/0055 Reflecting element, sheet or layer
• CPC Class Codes: G02B 6/006 to produce indicia, symbols, texts or the like
• CPC Class Codes: G02B 6/0068 Arrangements of plural sources, e.g. multi-colour light sources
• CPC Class Codes: G02B 6/0073 Light emitting diode [LED]

Abstract

The present invention provides a kind of traffic direction light consisting of a backlight module and several light sources where the backlight module comprises a light guide plate with one side provided with multiple light-reflection points, a reflective sheet with the characteristics of the reflected light ray and applied onto the one side of the light guide plate provided with the light-reflection points, and a diffusion sheet applied onto the other side of the light guide plate with the characteristics to distribute the light rays uniformly; and the light sources are able to cast at least one kind of light ray of different colors and arranged at least at one end of the light guide plate so that the light ray can be cast out through the backlight module.

Claims

1. A kind of traffic direction light used to achieve the traffic direction effect of displaying the uniform multicolor lights with a single light, comprising:

a backlight module, further comprising a light guide plate with one side provided with multiple light-reflection points, a reflective sheet with the characteristics of the reflected light ray and applied onto the one side of the light guide plate provided with the light-reflection points and a diffusion sheet applied onto the other side of the light guide plate with the characteristics to distribute the light rays uniformly; and

several light sources, arranged at least at one end of the light guide plate and able to cast at least one kind of light ray of different color and allow the light ray to be cast out through the backlight module.

2. The structure defined in claim 1, wherein said reflective sheet is made of the material capable of light ray reflection and used to reflect the lights leaking out of the light guide plate back to the light guide plate.

3. The structure defined in claim 1, wherein said light guide plate is a wedge-shaped plate with one thick end and one thin end and the light sources arranged at the thick end of the light guide plate.

4. The structure defined in claim 1, wherein said light guide plate is in a curved shape with the light sources arranged at one end of the light guide plate.

5. The structure defined in claim 3, wherein said light-reflection points are made of materials having a high reflectivity and not absorbing the lights.

6. The structure defined in claim 4, wherein said light-reflection points are made of materials having a high reflectivity and not absorbing the lights.

7. The structure defined in claim 3, wherein a circuit substrate is contained with the light sources arranged on the circuit substrate.

8. The structure defined in claim 4, wherein a circuit substrate is contained with the light sources arranged on the circuit substrate.

9. The structure defined in claim 7, wherein said light sources able to cast three different colors of light rays are provided and the light sources of said different colors of light rays are arranged in an alternating manner at one end of the light guide plate.

10. The structure defined in claim 8, wherein said light sources able to cast three different colors of light rays are provided and the light sources of said different colors of light rays are arranged in an alternating manner at one end of the light guide plate.

11. The structure defined in claim 7, wherein said light sources able to cast two different colors of light rays are provided and the light sources of said different colors of light rays are arranged in an alternating manner at one end of the light guide plate.

12. The structure defined in claim 8, wherein said light sources able to cast two different colors of light rays are provided and the light sources of said different colors of light rays are arranged in an alternating manner at one end of the light guide plate.

13. The structure defined in claim 11, wherein said light sources are the light-emitting diodes.

14. The structure defined in claim 12, wherein said light sources are the light-emitting diodes.

15. The structure defined in claim 9, it can be used as the traffic signal or the light assembly at the rear of the vehicle including the brake, steering and reversing lights.

16. The structure defined in claim 10, it can be used as the traffic signal or the light assembly at the rear of the vehicle including the brake, steering and reversing lights.