Light source arrangement

• US 20040165387A1
• Filed: 10/14/2003
• Published: 08/26/2004
• Est. Priority Date: 05/17/2002
• Status: Active Grant

• Current Assignee: Amy Yun Chen
• Original Assignee: A L Lightech Incorporated
• Inventors: Zhang, Long Bao
• Granted Patent: US 7,401,945 B2
• Time in Patent Office: Days
• US Class Current: 362/294
• CPC Class Codes: F21K 9/232 specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
• CPC Class Codes: F21S 45/48 with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device
• CPC Class Codes: F21V 29/74 with fins or blades
• CPC Class Codes: F21V 29/773 the planes containing the fins or blades having the direction of the light emitting axis
• 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 light source arrangement includes an electric input adapter for electrically connecting with a power source and a light head including a supporting frame and a luminary unit. The supporting frame has a dissipating end and a peripheral surface provided thereon. The luminary unit includes a circuit board provided on the peripheral surface of the supporting frame and electrically connected with the electric input adapter, and at least a luminary element, having two terminal electrodes, which is supported by the supporting frame and electrically connected to the circuit board for emitting light when the terminal electrodes are electrified. Therefore, the heat generated by the luminary element directly dissipates at the dissipating end of the supporting frame so as to prevent the light head from overheating.

Claims

1. A light source arrangement, comprising:

an electric input adapter for electrically connecting with a power source; and

a light head, comprising;

a supporting frame having at least a dissipating end and a peripheral surface provided thereon; and

a luminary unit comprising;

a circuit provided on said peripheral surface of said supporting frame and electrically connected with said electric input adapter, and

at least a luminary element having two terminal electrodes, wherein said luminary element is supported by said supporting frame and electrically connected to said circuit for emitting light when said terminal electrodes are electrified.

2. A light source arrangement, as recited in claim 1, wherein said luminary element is a single bonded diode wherein one of said terminal electrodes is electrically connected to said supporting frame while another said terminal electrode is electrically connected to said circuit.