Power-saving lamp

• US 6,621,222 B1
• Filed: 10/25/2002
• Issued: 09/16/2003
• Est. Priority Date: 05/29/2002
• Status: Expired due to Fees

• Current Assignee: Kun-Liang Hong
• Original Assignee: Kun-Liang Hong
• Inventors: Hong, Kun-Liang
• Primary Examiner(s): Wong, Don
• Assistant Examiner(s): TRAN, THUY V
• Application Number:
  US10/279,797
• Time in Patent Office: 326 Days
• Field of Search: 315/51, 315/56, 315/200.R, 315/246, 315/272, 315/287, 315/291, 315/307, 340/815.45, 340/815.73, 362/235, 362/236, 362/238, 362/240, 362/249, 362/252, 362/800
• US Class Current: 315/51
• 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 9/238 Arrangement or mounting of circuit elements integrated in the light source
• CPC Class Codes: F21V 23/006 the substrate being distinct from the light source holder
• CPC Class Codes: F21V 3/02 characterised by the shape
• CPC Class Codes: F21Y 2107/30 on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: Y10S 362/80 Light emitting diode

Abstract

A power-saving lamp is constructed to include a lamp head, a bulb fastened to the lamp head, a polygonal light emitting circuit assembly suspended from a bracket in the lamp head within the bulb, the polygonal light emitting circuit assembly having LEDs in each of the peripheral sidewalls thereof, and a power control circuit board mounted in the lamp head and electrically connected between the lamp head and the polygonal light emitting circuit assembly to convert input AC power from the lamp head into the desired working voltage for the polygonal light emitting circuit assembly.

Claims

1. A power-saving lamp comprising:

a lamp head for connection to an electric socket to receive AC power supply;

a bulb fastened to said lamp head, said bulb admitting light;

a bracket fixedly mounted in said lamp head;

a polygonal light emitting circuit assembly mounted on said bracket inside said bulb, said light emitting circuit assembly having a plurality of light emitting diodes located in each of peripheral walls thereof; and

a power control circuit board fixedly mounted inside said lamp head, said power control circuit board being comprised of a rectifier and filter circuit and a voltage regulator circuit electrically connected in series between said lamp head and said polygonal light emitting circuit assembly, and adapted to convert input AC power supply from said lamp head into a working voltage for said polygonal light emitting circuit assembly.

2. The power-saving lamp as claimed in claim 1, wherein said polygonal light emitting circuit assembly has a rectangular profile.

3. The power-saving lamp as claimed in claim 1, wherein said polygonal light emitting circuit assembly has a triangular profile.

4. The power-saving lamp as claimed in claim 1, wherein said polygonal light emitting circuit assembly has a hexagonal profile.