Illumination module

• US 20070115656A1
• Filed: 01/27/2006
• Published: 05/24/2007
• Est. Priority Date: 11/24/2005
• Status: Active Grant

• Current Assignee: Industrial Technology Research Institute
• Original Assignee: Industrial Technology Research Institute
• Inventors: Chu, Chun-Hsun, Lin, Wen-Shan, Chou, Ming-Chieh, Chiou, Yii-Tay
• Granted Patent: US 7,461,951 B2
• Time in Patent Office: Days
• US Class Current: 362/228
• CPC Class Codes: F21K 9/68 Details of reflectors forming part of the light source
• CPC Class Codes: F21S 41/143 the main emission direction of the LED being parallel to the optical axis of the illuminating device
• CPC Class Codes: F21S 41/147 the main emission direction of the LED being angled to the optical axis of the illuminating device
• CPC Class Codes: F21S 41/153 arranged in a matrix
• CPC Class Codes: F21S 45/43 using gas
• CPC Class Codes: F21S 45/49 Attachment of the cooling means
• CPC Class Codes: F21V 29/51 using condensation or evaporation of a fluid, e.g. heat pipes
• CPC Class Codes: F21V 29/67 characterised by the arrangement of fans
• CPC Class Codes: F21V 29/677 the fans being used for discharging
• CPC Class Codes: F21V 29/76 with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
• CPC Class Codes: F21V 29/763 the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21V 29/773 the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: F21V 5/04 of lens shape
• CPC Class Codes: F21Y 2107/40 on the sides of polyhedrons, e.g. cubes or pyramids
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

An illumination module is disclosed, which is comprised of a plurality of light sources, a plurality of light source substrates of high thermal conductivity, and a reflecting member for reflecting light. The plural light source substrates are arranged at positions corresponding to each other so as to form a polygon periphery of the illumination module, whereas the inner surface of the polygon periphery is enabled for at least one of the plural light sources to fit therein. The reflecting member is placed at the center of the module where it is corresponding to each of the plural light source substrates so as to reflect the light emitting from the light sources fitted thereon. In addition, a lens with light refraction ability is disposed at the light emitting end of the illumination module so as to enable the light illumination module to have light condensing/diffusing capability. Moreover, each light source substrate further comprises: a plurality of heat dissipating fins, being arranged at the outer surface thereof; and a assistant heat dissipating device; wherein the working range of the operation power and the luminous flux of the illumination module can be increased by the combined function provided by the heat dissipating fins and the assistant heat dissipating device. The assistant heat dissipating device can further comprise: a fan, being arranged at the bottom of the illumination module; and a heat pipe device, being fitted onto the light source substrate, for conducting waste heat to the heat dissipating fins to be dissipated.

Claims

1. An illumination module comprising:

a plurality of light sources;

at least a light source substrate, being arranged at positions corresponding to each other so as to form a periphery of the illumination module while the inner surface of the periphery is enabled for the plural light sources to fit thereon; and

at least a reflecting member, each being placed at a position corresponding to the light source substrate related thereto for reflecting the light emitting from the plural light sources.

2. The illumination module of claim 1, wherein any one of the plural light sources is a device selected form the group consisting of light emitting diode, solid-state light source, incandescent bulb, gas discharge lamp.

3. The illumination module of claim 1, wherein each light source substrate is embedded with an array of light sources composed of a specific number of the plural light sources.

4. The illumination module of claim 1, wherein each light source substrate is made of a material of high thermal conductivity.

5. The illumination module of claim 4, wherein the material of high thermal conductivity is a material selected from the group consisting of metals, semiconductor materials, composite materials and the combination thereof.

6. The illumination module of claim 1, wherein the plural light source substrates are arranged at positions corresponding to each other so as to form a polygon periphery of the illumination module.

7. The illumination module of claim 1, wherein the amount of the reflecting member is corresponding to that of the light source substrate while each reflecting member being position at the center of the illumination module.

8. The illumination module of claim 1, wherein each reflecting member is made of a material selected from the group consisting of non-metallic materials having a reflective film coated thereon, metallic materials with reflecting ability and the combination thereof.

9. The illumination module of claim 1, wherein the surface of the reflecting member for reflecting light is a vertical plane.

10. The illumination module of claim 1, wherein the surface of the reflecting member for reflecting light is an arc surface.

11. The illumination module of claim 1, wherein a formation of the light sources is arranged on top of a structure formed of the reflecting members.

12. The illumination module of claim 1, wherein a formation of the light sources is arranged on the light-reflecting surface of a structure formed of the reflecting members.

13. The illumination module of claim 1, wherein a formation of the light sources is arranged inside a hollow structure formed of the reflecting members.

14. The illumination module of claim 1, wherein a lens with light refraction ability is disposed at the light emitting end of the illumination module.

15. The illumination module of claim 1, wherein a plurality of heat dissipating fins are arranged at the outer surface of each light source substrate.

16. The illumination module of claim 1, wherein a plurality of heat dissipating fins are arranged at the outer surface of each light source substrate while a fan is arranged at the bottom of the plural fins.

17. The illumination module of claim 16, wherein channels are formed between the outer surface of each light source substrate and each heat dissipating fin corresponding thereto for forming a non-closed contact surface therebetween.

18. The illumination module of claim 17, further comprising:

at least a separating plate, each being arranged outside a selected heat dissipating fins; and

a hull, covering the structure formed by the separating plates while forming a space sandwiched between the separating plates and the hull, the space being connected with the channels arranged between the selected heat dissipating fin and the light source substrate corresponding thereto.

19. The illumination module of claim 18, wherein the separating plate is a portion of a corresponding heat dissipating fin extending out of the edge thereof.

20. The illumination module of claim 1, further comprising:

at least a heat pipe device, for conducting waste heat out of the illumination module; and

at least a posterior heat dissipating fin, each being arranged at an end of the corresponding heat pipe device for receiving waste heat guided out by the same; and

at least a posterior fan, each being used for forcing a heat convention to occur in the corresponding posterior heat dissipating fin.