Light apparatus with enlightened pattern

• US 10,508,775 B2
• Filed: 04/25/2018
• Issued: 12/17/2019
• Est. Priority Date: 04/11/2018
• Status: Active Grant

• Current Assignee: Xiamen Eco Lighting Co. Ltd.
• Original Assignee: Xiamen Eco Lighting Co. Ltd.
• Inventors: Gao, Yanzeng, Che, Juncheng, Jiang, Hongkui
• Primary Examiner(s): Patel, Ashok
• Application Number:
  US15/962,806
• Publication Number:
  US 20190316739A1
• Time in Patent Office: 601 Days
• Field of Search: None
• CPC Class Codes: F21K 9/232 specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
• CPC Class Codes: F21K 9/61 using light guides
• CPC Class Codes: F21V 19/001 the light sources being semiconductors devices, e.g. LEDs
• CPC Class Codes: F21V 23/003 the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
• CPC Class Codes: F21V 23/06 the elements being coupling devices , e.g. connectors
• CPC Class Codes: F21W 2121/00 Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: G02B 19/0014 at least one surface having optical power
• CPC Class Codes: G02B 19/0066 in the form of an LED array
• CPC Class Codes: G02B 27/0955 Lenses lenses per se G02B3/00
• CPC Class Codes: G02B 27/0994 Fibers, light pipes optical fibers per se G02B6/02
• CPC Class Codes: G02B 6/0001 specially adapted for lighting devices or systems lighting or signalling on vehicles using light guides B60Q1/00; lighting devices for vehicle dashboards B60Q3/10; lighting devices for vehicle interior using light guides B60Q3/62; lighting devices mounted on the vehicle rear part using light guides F21S43/235; measuring arrangements having light conducting pointers G01D13/265; illumination of liquid crystal displays G02F1/1336; illuminated signs G09F13/00
• CPC Class Codes: G02B 6/0095 Light guides as housings, housing portions, shelves, doors, tiles, windows, or the like

Abstract

A light apparatus with an enlightened pattern includes a driver circuit, a LED plate, an optical light guide, a connector and a bulb shell. The LED plate connected to the driver circuit has a LED module for emitting a light. The optical light guide has a bottom end facing to the LED module for receiving the light and has a top end forming an enlightened pattern where the light escaped from the top end of the optical light guide. The connector is used for fixing the LED plate to the optical light guide for aligning the LED module to emit the light into the bottom end and for transmitting heat of the LED plate to the optical light guide.

Claims

1. A light apparatus, comprising:

a driver circuit for converting an external power source to a driving current;

an LED plate being connected to the driver circuit and having a first LED module and a second LED module, the first light emitting a first light with the driving current;

an optical light guide, as a first optical unit, having a bottom end facing to the first LED module for receiving the first light and having a top end forming an enlightened pattern where the first light escaped from the top end of the optical light guide;

a second optical unit for guiding a second light emitted from the second LED module to a lateral surface of the optical light guide, the lateral surface being between the top end and the bottom end of the optical light guide;

a connector for fixing the LED plate to the optical light guide for aligning the first LED module to emit the first light into the bottom end and for transmitting heat of the LED plate to the optical light guide; and

a bulb shell covering the optical light guide.

2. The light apparatus of claim 1, wherein the optical light guide is a tube structure.

3. The light apparatus of claim 2, wherein the top end of the tube structure has a plurality of protruding structures, a surface of the plurality of protruding structures forming the enlightened pattern.

4. The light apparatus of claim 2, wherein the second light emitted from the second LED module is transmitted on an inner lateral surface of the tube structure.

5. The light apparatus of claim 2, wherein the tube structure has at least a through hole in a lateral wall of the tube structure.

6. The light apparatus of claim 2, wherein an inner lateral surface of the tube structure has a second enlightened pattern to appear when the second light is emitted on the second enlightened pattern.

7. The light apparatus of claim 2, wherein an external lateral side of the tube structure has a third enlightened pattern.

8. The light apparatus of claim 7, wherein the third enlightened pattern is added on the external lateral side by printing a painting material.

9. The light apparatus of claim 1, wherein the second optical unit is a lens with a fourth enlightened pattern on the lens to emit an image corresponding to the fourth enlightened pattern.

10. The light apparatus of claim 1, wherein the second optical unit and the optical light guide are made as a unibody module.

11. The light apparatus of claim 1, wherein the second optical unit and the optical light guide are two separable units and may be replaced as a different combination.

12. The light apparatus of claim 1, wherein the first LED module is not located completely right below the light guide.

13. The light apparatus of claim 12, wherein a part of the first light of the first LED module is not entering the light guide.

14. The light apparatus of claim 1, wherein a surface of the bulb shell has a projection layer for changing an overall light effect of the light apparatus.

15. The light apparatus of claim 1, wherein the optical unit comprises a tilt stage for making a light emitting angle of the second LED module.

16. The light apparatus of claim 1, wherein the light guide is made of glass material.

17. The light apparatus of claim 1, wherein the optical unit comprises multiple lens with bottom surfaces respectively facing to corresponding LED chips of the second light module.

18. The light apparatus of claim 1, wherein the optical unit is a lens plate with a plurality of micro-lens on a surface of the lens plate, and the refraction angles in a peripheral area of the lens plate are larger than the refraction angles in a central area of the lens plate.