Light emitting assembly, lighting apparatus and vehicle

• US 10,641,458 B2
• Filed: 11/16/2018
• Issued: 05/05/2020
• Est. Priority Date: 11/20/2017
• Status: Active Grant

• Current Assignee: Foshan Ichikoh Valeo Auto Lighting Systems Co., Ltd. (Valeo SE)
• Original Assignee: Foshan Ichikoh Valeo Auto Lighting Systems Co., Ltd. (Valeo SE)
• Inventors: Xiang, Zhixin, Ni, Zebin
• Primary Examiner(s): Garlen, Alexander K
• Application Number:
  US16/193,708
• Publication Number:
  US 20190154228A1
• Time in Patent Office: 536 Days
• CPC Class Codes: B60Q 1/2607 comprising at least two indicating lamps
• CPC Class Codes: B60Q 2400/20 Multi-color single source or LED matrix, e.g. yellow blinker and red brake lamp generated by single lamp
• CPC Class Codes: F21S 41/141 Light emitting diodes [LED]
• CPC Class Codes: F21S 41/192 Details of lamp holders, terminals or connectors
• CPC Class Codes: F21S 41/24 Light guides
• CPC Class Codes: F21S 41/285 Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
• CPC Class Codes: F21S 41/32 Optical layout thereof
• CPC Class Codes: F21S 43/14 Light emitting diodes [LED]
• CPC Class Codes: F21S 43/15 Strips of light sources
• CPC Class Codes: F21S 43/195 Details of lamp holders, terminals or connectors
• CPC Class Codes: F21S 43/239 plate-shaped
• CPC Class Codes: F21S 43/243 emitting light from one or more of its extremities
• CPC Class Codes: F21S 43/249 with two or more light sources being coupled into the light guide
• CPC Class Codes: F21S 43/26 Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
• CPC Class Codes: F21S 43/31 Optical layout thereof
• CPC Class Codes: F21S 43/315 using total internal reflection
• CPC Class Codes: F21S 43/40 characterised by the combination of reflectors and refractors
• CPC Class Codes: F21Y 2113/13 comprising an assembly of point-like light sources
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A light emitting assembly, a lighting apparatus and a vehicle. The light emitting assembly includes: a mounting plate; a light source assembly mounted on the mounting plate and including a first light source configured for emitting light with a first color and a second light source configured for emitting light with a second color; and a light guide member having a light entrance section and a light guide section integrally formed, the light guide member being configured to couple the light emitted from the light source assembly into the light guide member. The first light source and the second light source of the light source assembly are mounted on different mounting sub-plates of the mounting plate respectively.

Claims

1. A light emitting assembly for a lighting apparatus of a motor vehicle, comprising:

a mounting plate comprising mounting sub-plates;

a light source assembly mounted on the mounting plate, the light source assembly comprising first light sources distributed across a first mounting sub-plate of the mounting sub-plates and configured for emitting light of a first color and second light sources distributed across a second mounting sub-plate of the mounting sub-plates and configured for emitting light of a second color; and

a light guide member comprising;

a light guide section terminated at one side by a light exiting surface spanning a width and thickness of the light guide section and at an opposing side by light entrance surfaces distributed across the width of the light guide section and respectively spanning the thickness thereof; and

a light entrance section comprising a plurality of first light receiving parts optically coupled to the respective first light sources and a plurality of second light receiving parts optically coupled to the respective second light sources, the first light receiving parts and the second light receiving parts being integrally formed with the light guide section and optically coupled thereto through the respective light entrance surfaces, wherein the first light receiving parts and the second light receiving parts are arranged in alternating sequence across the width of the light guide section.

2. The light emitting assembly according to claim 1, wherein each of the first light receiving parts and the second light receiving parts are arranged at an angle relative to the light guide section, and a deflecting portion is provided at a transition part between each of the first and second light receiving parts and the light guide section that are configured to reflect light emitted from a corresponding one of the first and second light sources through a corresponding one of the light entrance surfaces and into the light guide section.

3. The light emitting assembly according to claim 2, wherein the deflecting portion includes a total reflection surface.

4. The light emitting assembly according to claim 2, wherein each of the first and second light receiving parts are perpendicular to the light guide section.

5. The light emitting assembly according to claim 1, wherein the first light receiving parts are optically coupled to the corresponding light entrance surfaces through light guide segments such that the first light receiving parts are a greater distance away from the light guide section than the second light receiving parts.

6. The light emitting assembly according to claim 1, wherein the first light receiving parts and the second light receiving parts are alternatingly coupled to the light guide section through the respective light entrance surfaces.

7. The light emitting assembly according to claim 1, wherein the first light receiving parts and the second light receiving parts each include a collimator configured to collimate received light into parallel light.

8. The light emitting assembly according to claim 1, wherein the first light sources and the second light sources include light emitting diodes.

9. The light emitting assembly according to claim 1, wherein the first light sources or the second light sources are configured to selectively emit light at two different intensities.

10. The light emitting assembly according to claim 1, wherein the mounting sub-plates include printed circuit boards.

11. A lighting apparatus, comprising the light emitting assembly of claim 1.

12. A vehicle, comprising the lighting apparatus of claim 11.