White light LED illumination apparatus

• US 20030052599A1
• Filed: 09/12/2002
• Published: 03/20/2003
• Est. Priority Date: 09/14/2001
• Status: Abandoned Application

• Current Assignee: Tung-Fen Tsai
• Original Assignee: Tung-Fen Tsai
• Inventors: Sun, Hsueh-Feng
• Application Number:
  US10/242,033
• Publication Number:
  US 20030052599A1
• Time in Patent Office: Days
• US Class Current: 313/512
• 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 9/27 Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
• 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: 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 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2107/00 Light sources with three-dimensionally disposed light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

The present invention reveals a white light LED illumination apparatus that comprises a printed circuit board, a plurality of single color LEDs, at least one electricity terminal and a transparent casing. The plurality of single color LEDs are set on the printed circuit board. At least one electricity terminal is connected to the printed circuit board and a power source. The transparent casing with a fluorescent material layer, connected to at least one electricity terminal, determines a closed room to accommodate the printed circuit board. The fluorescent material layer can be activated by the light generated from the plurality of single color LEDs to generate light by mixing with the light from the single color LEDs to generate white light.

Claims

1. A white light LED illumination apparatus, comprising:

a printed circuit board;

a plurality of single color LEDs placed on the printed circuit board;

at least one electricity terminal connected to the printed circuit board; and

a transparent casing connected to at least one electricity terminal, the transparent casing enclosing the printed circuit board and having a fluorescent material layer.

2. The white light LED illumination apparatus in accordance with claim 1, wherein the printed circuit board is a multi-layer board or a soft board.

3. The white light LED illumination apparatus in accordance with claim 1, wherein the single color LEDs are one kind of blue light LED and ultraviolet light LED.

4. The white light LED illumination apparatus in accordance with claim 1, wherein an absorption wavelength of the fluorescent material can be activated by the light of the single color LEDs.

5. The white light LED illumination apparatus in accordance with claim 1, wherein the fluorescent material layer is formed on a surface of the transparent casing or mixed in the transparent casing.

6. A white light LED illumination apparatus, comprising:

a printed circuit board;

a plurality of single color LEDs placed on the printed circuit board;

two lamp plugs connected to the printed circuit board; and

a transparent lamp including a fluorescent material layer, wherein two ends of the transparent lamp are connected to the two lamp plugs.

7. The white light LED illumination apparatus in accordance with claim 6, wherein the transparent lamp is in a ring shape or a bar shape.

8. The white light LED illumination apparatus in accordance with claim 6, wherein the single color LEDs are one kind of blue light LED and ultraviolet light LED.

9. The white light LED illumination apparatus in accordance with claim 6, wherein an absorption wavelength of the fluorescent material can be activated by the light of the single color LEDs.

10. The white light LED illumination apparatus in accordance with claim 6, wherein the fluorescent material layer is formed on a surface of the transparent casing or mixed in the transparent casing.

11. A white light LED illumination apparatus, comprising:

a printed circuit board;

a plurality of single light LEDs placed on the printed circuit board;

a lamp base, one end of the lamp base connected to the printed circuit board; and

a lamp casing including a fluorescent material layer and an opening connected to the lamp base.

12. The white light LED illumination apparatus in accordance with claim 11, wherein the single light LEDs are one kind of blue light LED and ultraviolet LED.

13. The white light LED illumination apparatus in accordance with claim 11, wherein an absorption wavelength of the fluorescent material can be activated by the light of single light LEDs.

14. The white light LED illumination apparatus in accordance with claim 11, wherein the fluorescent material layer is formed on a surface of the transparent casing or mixed in the transparent casing.