LED LIGHTING DEVICE

• US 20080310155A1
• Filed: 06/03/2008
• Published: 12/18/2008
• Est. Priority Date: 06/13/2007
• Status: Abandoned Application

• Current Assignee: AMA Precision Inc. (Pegatron Corporation)
• Original Assignee: AMA Precision Inc. (Pegatron Corporation)
• Inventors: Huang, Heng-Chun, Liu, Chien-Hua
• Application Number:
  US12/131,939
• Publication Number:
  US 20080310155A1
• Time in Patent Office: Days
• US Class Current: 362/231
• CPC Class Codes: F21S 10/02 changing colors F21S10/002 - F21S10/007, F21S10/04 take precedence
• CPC Class Codes: F21V 13/04 the elements being reflectors and refractors for vehicle rear lights F21S43/40
• CPC Class Codes: F21V 5/002 using microoptical elements for redirecting or diffusing light
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

An LED lighting device is disclosed. The LED lighting device includes a lampshade, a circuit board, edge lighting light emitting diodes (LEDs), and an optical film set. The lampshade has a bottom and a side wall connected to the periphery of the bottom. The other end of the side wall opposite to the bottom defines a light outlet section. The circuit board is provided at the lampshade. The edge lighting LEDs are disposed on the bottom of the lampshade and are electrically connected to the circuit board. Light emitted from each of the edge lighting LEDs is reflected by the lampshade and then exits the lighting device through the light outlet section. The optical film set is disposed at the light outlet section of the lampshade.

Claims

1. An LED lighting device comprising:

a lampshade having a bottom and a side wall connected to the periphery of the bottom, wherein the other end of the side wall opposite to the bottom defines a light outlet section;

a circuit board provided at the lampshade;

a plurality of edge lighting LEDs disposed at the bottom of the lampshade and electrically connected to the circuit board, wherein each of the edge lighting LEDs emit light, and the lampshade reflects the light to enable the light to be emitted from the light outlet section; and

an optical film set disposed at the light outlet section of the lampshade.

2. The LED lighting device according to claim 1, wherein the circuit board is disposed outside the lampshade, the bottom of the lampshade has a plurality of holding holes, and each of the edge lighting LEDs is disposed in the corresponding holding hole, respectively, to be electrically connected to the circuit board.

3. The LED lighting device according to claim 1, wherein the circuit board is provided in the lampshade and at the bottom of the lampshade.

4. The LED lighting device according to claim 3, further comprising a reflecting layer which is disposed on the circuit board and exposes the edge lighting LEDs.

5. The LED lighting device according to claim 3, further comprising a reflecting cover disposed in the lampshade to cover the side wall and the circuit board, wherein the reflecting cover has a plurality of holding holes, and each of the edge lighting LED is disposed in the corresponding holding hole, respectively, to be electrically connected to the circuit board.

6. The LED lighting device according to claim 1, wherein the edge lighting LEDs comprises red, blue and green LEDs.

7. The LED lighting device according to claim 1, wherein the optical film set comprises Fresnel lens, Prism sheet, Lenticular lens, Micro lens array, diffuser or the combination thereof.