Structure of lamp

• US 20020070643A1
• Filed: 12/13/2000
• Published: 06/13/2002
• Est. Priority Date: 12/13/2000
• Status: Abandoned Application

• Current Assignee: Yeh, Chao-Chin
• Original Assignee: Yeh, Chao-Chin
• Inventors: Yeh, Chao-Chin
• Application Number:
  US09/734,573
• Publication Number:
  US 20020070643A1
• Time in Patent Office: Days
• US Class Current: 313/25
• 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 3/04 characterised by materials, surface treatments or coatings
• CPC Class Codes: F21V 3/12 the coatings comprising photoluminescent substances
• 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]
• CPC Class Codes: H01J 61/56 One or more circuit elements structurally associated with the lamp

Abstract

A lamp is constructed to include a base adapted for connecting to an electric socket to obtain electricity, a shell fastened to the base and defining with the base an air-tight space, the shell having an inside wall coated with a layer of phosphorescent coating, an electronic ballast installed in the base and adapted to convert AC power supply into DC power supply, and at least one ultraviolet light emitting diode suspended in the air-tight space and connected to the electronic ballast and adapted to produce ultraviolet light to strike the phosphorescent coating in producing visible light upon connection of the base upon connection of the electronic ballast to power supply.

Claims

1. A lamp comprising:

a base adapted for connecting to an electric socket to obtain electricity;

a shell fastened to said base and defining with said base an air-tight space, said shell comprising an inside wall coated with a layer of phosphorescent coating; and

at least one ultraviolet light emitting diode suspended in said airtight space and connected to said base and adapted to produce ultraviolet light to strike said phosphorescent coating in producing visible light upon connection of said base to an electric socket to obtain electricity.

2. The lamp of claim 1 further comprising an electronic ballast installed in said base and adapted to convert AC power supply into DC power supply for said at least one ultraviolet light emitting diode.

3. The lamp of claim 1, wherein said airtight space is a vacuum.

4. The lamp of claim 1, wherein said airtight space is filled with an inert gas.

5. The lamp of claim 4, wherein said inert gas is nitrogen.

6. The lamp of claim 1, wherein said base is a screw base.

7. The lamp of claim 1, wherein said base is a bayonet base.