LED lighting system

• US 20060193130A1
• Filed: 02/08/2006
• Published: 08/31/2006
• Est. Priority Date: 02/28/2005
• Status: Abandoned Application

• Current Assignee: Atex Co., Ltd.
• Original Assignee: Atex Co., Ltd.
• Inventors: Ishibashi, Kazuo
• Application Number:
  US11/349,110
• Publication Number:
  US 20060193130A1
• Time in Patent Office: Days
• US Class Current: 362/227
• CPC Class Codes: F21K 9/232 specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
• CPC Class Codes: F21V 29/67 characterised by the arrangement of fans
• CPC Class Codes: F21V 3/00 Globes; Bowls; Cover glasses with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506
• CPC Class Codes: F21Y 2107/10 on concave supports or substrates, e.g. on the inner side of bowl-shaped supports
• 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

Provided is an LED lighting system with a smaller heat resistance of the LED, which can be produced by simpler mounting steps and is capable of three-dimensionally arranging the LEDs depending on required directivity of each system. A plurality of LEDs 2 are mounted on an FPC 1 which has a radial shape and can be flat when developed. The LEDs 2 connected by printed wiring to each other and linked to terminals 3 and 4 are attached on a surface of a core 5 made of a material having a high thermal conductivity. Heat generated at a p-n junction of the LEDs 2 is transmitted to the core 5 via the FPC 1 and a thermal-conductive adhesive.

Claims

1. An LED lighting system comprising:

a plurality of LEDs,

a flexible printed circuit board for mounting the LEDs, which is developable in a flat state, and

a light source fixing member having a curved surface and made of a high thermal-conductive material, said flexible printed circuit board being tightly attached to the curved surface.

2. The system claimed in claim 1, wherein said light source fixing member is a core which is a central portion of the system.

3. The system claimed in claim 1, wherein said light source fixing member is a reflector.

4. The system claimed in claim 1, wherein said flexible printed circuit board is attached to the light source fixing member with a thermal-conductive adhesive.

5. The system claimed in claim 2, wherein said flexible printed circuit board is attached to the light source fixing member with a thermal-conductive adhesive.

6. The system claimed in claim 3, wherein said flexible printed circuit board is attached to the light source fixing member with a thermal-conductive adhesive.