LIGHT APPARATUS WITH ENLIGHTENED PATTERN

• US 20190320509A1
• Filed: 04/11/2018
• Published: 10/17/2019
• Est. Priority Date: 04/11/2018
• Status: Active Grant

• Current Assignee: Xiamen Eco Lighting Co. Ltd.
• Original Assignee: Xiamen Eco Lighting Co. Ltd.
• Inventors: Lin, Xianghua, Cao, Liangliang, Yang, Yi, Jiang, Hongkui, Gao, Yanzeng
• Granted Patent: US 10,645,768 B2
• Time in Patent Office: Days
• 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: F21K 9/64 using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
• CPC Class Codes: F21S 10/00 Lighting devices or systems producing a varying lighting effect
• CPC Class Codes: F21V 17/04 the fastening being onto or by the light source
• 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: G02B 6/002 by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
• CPC Class Codes: G02B 6/0073 Light emitting diode [LED]
• CPC Class Codes: G02B 6/0076 Stacked arrangements of multiple light guides of the same or different cross-sectional area
• CPC Class Codes: H05B 45/00 Circuit arrangements for operating light-emitting diodes [LED]
• CPC Class Codes: H05B 45/357 specially adapted for retrofit LED light sources
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

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;

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

an optical light guide 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 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 LED plate further has a second LED module not directly emitting a second light into the optical light guide for emitting the second light as a luminous source.

5. The light apparatus of claim 1, wherein the optical light guide is a plate with two fork patterns extended from the bottom end of the optical light guide to the top end of the optical light guide and the enlightened pattern appears like a Tungsten filament supported by the two fork patterns to simulate a Tungsten light bulb.

6. The light apparatus of claim 5, wherein the two fork patterns are made by placing two metal strips.

7. The light apparatus of claim 1, wherein the optical light guide is composed of multiple components to form a three-dimensional extended structure.

8. The light apparatus of claim 1, wherein a lateral side of the optical light guide has grooves providing a part of the first light to escape.

9. The light apparatus of claim 1, wherein the groove near the top end of the optical light guide has different dimension as the groove near the bottom end so as to make escaped light strengths similar to each other.

10. The light apparatus of claim 1, wherein the optical light guide is made of Polymethyl Methacrylate (PMMA) material and the top end of the optical light guide is made by polished cutting.

11. The light apparatus of claim 1, wherein the optical light guide is mixed with a coloring material for depressing a part of predetermined spectrum to adjust the color of the enlightened pattern.

12. The light apparatus of claim 1, wherein a fluorescent layer is applied on the optical light guide to change spectrum composition of the enlightened pattern.

13. The light apparatus of claim 1, wherein the optical light guide comprises multiple components having bending parts to form a three-dimension structure.

14. The light apparatus of claim 1, wherein the LED plate has a second LED module for not directly emitting a second light into the optical light guide and for emitting the second light as a luminous source.

15. The light apparatus of claim 14, wherein the second LED module and the first LED module are controlled by the driver circuit independently to provide multiple operation combination of the first LED module and the second LED module.

16. The light apparatus of claim 14, wherein the LED plate further comprises a third LED module for emitting a third light into the optical light guide to form a second enlightened pattern, the third LED module is operable independently from the first LED module to provide multiple operation combination of the first LED module and the third LED module.

17. The light apparatus of claim 1, wherein the bottom end of the optical light guide has concave lens for distributing the first light evenly into the optical light guide.

18. The light apparatus of claim 1, wherein the bottom end of the optical light guide has a convex lens for condensing the first light as a light beam into the optical light guide.

19. The light apparatus of claim 1, wherein the optical light guide is made of Polycarbonate (PC) material and the enlightened pattern is formed with a laser light.

20. The light apparatus of claim 1, wherein the bulb shell has a thickness and the LED module emits a part of light transmitted in the bulb shell forming a second enlightened pattern.