Led Lamp

• US 20080285269A1
• Filed: 09/26/2005
• Published: 11/20/2008
• Est. Priority Date: 09/27/2004
• Status: Abandoned Application

• Current Assignee: Sze Keun Chan
• Original Assignee: Sze Keun Chan
• Inventors: Chan, Sze Keun
• Application Number:
  US11/572,658
• Publication Number:
  US 20080285269A1
• Time in Patent Office: Days
• US Class Current: 362/235
• CPC Class Codes: F21K 9/233 specially adapted for generating a spot light distribution, e.g. for substitution of reflector lamps
• CPC Class Codes: F21V 17/12 by screwing
• CPC Class Codes: F21Y 2107/20 on convex supports or substrates, e.g. on the outer surface of spheres
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

An LED lamp includes a lamp-lid, a metal lamp-cup, an insulating layer for connecting a lamp-cap and the metal lamp-cup, LEDs, a semispherical pallet or an astigmatism plate, and a PCB (Printed Circuit Board) in the metal lamp-cup, characterized in that, one semispherical pallet is provided on said PCB, the semispherical pallet has the same number of holes as that of the LEDs, the LEDs are installed in the holes of the semispherical pallet, electrical connections of the LEDs are connected to the PCB through the semispherical pallet, and provided with power. The LEDs installed in this way are mounted on the semispherical pallet and arranged in a semisphere, thus light of the LEDs is radiated in various directions, increasing the light emitting angle of the LEDs, or the semispherical pallet is replaced by the astigmatism plate made of transparent or subtransparent material, the said metal lamp-cup is a larger area lamp cup made of metal or heat conduct materials; thus facilitating the heat emission of the LED lamp.

Claims

1. An LED lamp comprising:

a lamp-lid;

a metal lamp-cup, the metal lamp-cup being made of a heat conductive material such as metal and the inner surface of the lamp-cup being electroplated with reflecting film;

an insulating layer to connect a lamp-cap and the metal lamp-cup;

LEDs;

a semi-spherical pallet or an astigmatism plate;

a PCB (Printed Circuit Board) in the metal lamp-cup; and

a semi-spherical pallet on the PCB, the semi-spherical pallet having the same number of holes as that of the LEDs, the LEDs being installed in the holes with the electrical connections of the LEDs are connected to the PCB through the semispherical pallet and provided with power, or

an astigmatism plate on the PCB, wherein the astigmatism plate includes a transparent or subtransparent material, and the astigmatism plate has the same number of holes as that of the LEDs, the LEDs are installed in the holes with the electrical connections of the LEDs connected to the PCB.

2. The LED lamp of claim 1, wherein the LEDs and the semi-spherical pallet or the astigmatism plate are installed in and at the bottom of the metal lamp-cup.

3. the LED lamp of claim 1, further comprising:

a transparent or subtransparent lamp-lid.

4. An LED lamp of claim 1, wherein the combining border of the lamp-lid and the lamp-cup has screw holes, through which, the lamp-lid and the lamp-cup can be secured by a bolt and a nut.

5. An LED lamp of claim 1, wherein the insulating layer is positioned between the lamp-cap and the metal lamp-cup.