ILLUMINANT DEVICE AND LIGHT REFLECTING SHADE THEREOF

• US 20100103670A1
• Filed: 12/29/2008
• Published: 04/29/2010
• Est. Priority Date: 10/27/2008
• Status: Abandoned Application

• Current Assignee: Delta Electronics Incorporated
• Original Assignee: Delta Electronics Incorporated
• Inventors: LIANG, Nai-Yueh, HSU, Han-Chung
• Application Number:
  US12/345,122
• Publication Number:
  US 20100103670A1
• Time in Patent Office: Days
• US Class Current: 362/235
• CPC Class Codes: F21K 9/20 Light sources comprising attachment means
• CPC Class Codes: F21K 9/68 Details of reflectors forming part of the light source
• CPC Class Codes: F21V 7/041 with conical or pyramidal surface
• CPC Class Codes: F21V 7/09 with a combination of different curvatures
• CPC Class Codes: F21W 2131/103 of streets or roads
• CPC Class Codes: F21Y 2113/00 Combination of light sources
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

This invention provides an illuminant device and its light reflecting shade for reflecting a light emitted from a light source. Such light reflecting shade includes a plurality of reflecting sheets forming a conoid-like structure with a plurality of reflecting planes, a first side and a corresponding second side. The light source is disposed at the first side and the second side is a light emitting side.

Claims

1. A light reflecting shade for reflecting a light emitted from a light source, comprising:

at least one reflecting sheet forming a conoid-like structure, wherein the conoid-like structure comprises a plurality of portions with a plurality of reflecting planes, a first side and a second side, the light source is disposed at the first side, and the second side is a light emitting side.

2. The light reflecting shade according to claim 1, wherein the first side or the second side has an ellipse, trapezoid, circle, rectangle, polygon or irregular profile, and the first side is open or closed.

3. The light reflecting shade according to claim 1, wherein the area of the second side is greater than that of the first side, and the first side and the second side are parallel or unparallel.

4. The light reflecting shade according to claim 1, wherein the reflecting sheet is made of aluminum or metal and has a high reflective material formed by plating or coating on a surface thereof.

5. The light reflecting shade according to claim 1, wherein the conoid-like structure is formed by bending the single reflecting sheet or assembling the plurality of reflecting sheets together.

6. The light reflecting shade according to claim 1, wherein the reflecting planes are disposed inside the conoid-like structure.

7. The light reflecting shade according to claim 1, wherein the slope of one reflecting plane of one portion is different from that of corresponding reflecting plane of another portion.

8. The light reflecting shade according to claim 1, wherein the conoid-like structure is formed as a single piece, or is formed by assembling the plurality of portions together.

9. The light reflecting shade according to claim 1, wherein the central axis of the first side is aligned or not aligned with the central axis of the second side.

10. An illuminant device assembled by at least one illuminant module, the illuminant module comprising:

at least one light source;

at least one light reflecting shade disposed corresponding to the light source and comprising at least one reflecting sheet to form a conoid-like structure, wherein the conoid-like structure comprises a plurality of portions with a plurality of reflecting planes, a first side and a second side, the light source is disposed at the first side, and the second side is a light emitting side; and

a substrate for disposing the light source thereon.

11. The illuminant device according to claim 10, wherein the illuminant module further comprises a housing for covering the light source, the substrate and the light reflecting shade.

12. The illuminant device according to claim 11, wherein the housing further comprises a transparent plate disposed on an optical path of the light source for passing the light therethrough.

13. The illuminant device according to claim 12, wherein the material of the housing is aluminum, and the material of the transparent plate is glass.

14. The illuminant device according to claim 10, wherein the illuminant module further comprises a heat sink disposed at one side of the substrate for dissipating heat of the light source.

15. The illuminant device according to claim 14, wherein the illuminant module further comprises a rubber pad disposed between the housing and the heat sink for providing a water-proof function.

16. The illuminant device according to claim 10, wherein the plurality of illuminant modules are arranged and assembled at the same plane, different planes or in arc shape.

17. The illuminant device according to claim 10, further comprising a frame for disposing the plurality of illuminant modules thereon.

18. The illuminant device according to claim 10, wherein the illuminant device is a street lamp, a searchlight or a projection lamp.

19. The illuminant device according to claim 10, wherein the light source is a light emitting diode (LED), and the illuminant module comprises a power connection line electrically connected to the light source.

20. The illuminant device according to claim 10, wherein a heat conducting material is attached to the surface of the substrate.