High intensity light source capable of emitting various colored lights

• US 20030021117A1
• Filed: 07/27/2001
• Published: 01/30/2003
• Est. Priority Date: 07/10/2001
• Status: Abandoned Application

• Current Assignee: Tsung-Wen Chan
• Original Assignee: Tsung-Wen Chan
• Inventors: Chan, Tsung-Wen
• Application Number:
  US09/915,280
• Publication Number:
  US 20030021117A1
• Time in Patent Office: Days
• US Class Current: 362/260
• 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: F21V 3/062 the material being plastics
• CPC Class Codes: F21V 3/12 the coatings comprising photoluminescent substances
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2113/13 comprising an assembly of point-like light sources
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A high intensity light source has a LED assembly consisting of red, green and blue three primary colored LEDS enclosed in a globe whose inner wall surface is spray coated with a fluorescent powder for blending the emitted lights from the LEDS into various resultant colored lights by operating a control circuit, and the resultant lights are outputted through all directional refraction of the globe.

Claims

1. A high intensity light source capable of emitting various colored light being enclosed in a transparent plastic globe whose inner wall surface is spray coated to form a fluorescent powder layer for color blending, a LED assembly composed of red, green, and blue primary color unit LEDS being installed in said globe for serving as said light source, and regulating the ratio of said primary color lights emitted from said LED assembly by operating an associated control circuit such that various desired resultant colored lights can be produced depending on the blending effect of said fluorescent powder layer, and said resultant colored lights being refracted uniformly to all direction through said globe.

2. The light source of claim 1, wherein said blended resultant colored lights can be dimmed in accordance with dimming of corresponding light emitted from said LED assembly.

3. The light source of claim 1, wherein the contour of said globe for said LED assembly is formed into a semi-spherical shape.

4. The light source of claim 1, wherein the contour of said globe for said LED assembly is formed into a tubular fluorescent lamp shape.

5. The light source of claim 1, wherein the contour of said globe for said LED assembly is formed into a flat plate shape.

6. The light source of claim 1, wherein the contour of said globe for said LED assembly is formed into any geometrical shape.