LED lamp

• US 7,490,955 B1
• Filed: 12/27/2007
• Issued: 02/17/2009
• Est. Priority Date: 11/06/2007
• Status: Expired due to Fees

• Current Assignee: Foxsemicon Integrated Technology Incorporated
• Original Assignee: Foxsemicon Integrated Technology Incorporated
• Inventors: Lai, Chih-Ming
• Primary Examiner(s): Sember, Thomas M
• Application Number:
  US11/964,826
• Time in Patent Office: 418 Days
• Field of Search: 362/235, 362/249, 362/374, 362/375
• US Class Current: 362/235
• CPC Class Codes: F21K 9/00 Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
• CPC Class Codes: F21V 17/104 using feather joints, e.g. tongues and grooves, with or without friction
• CPC Class Codes: F21W 2131/103 of streets or roads
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

An LED lamp includes a lamp seat, a lampshade and a plurality of LED modules. The lamp seat defines a groove thereof. The lampshade covers the lamp seat and forms a protrude portion slidably engaged in the groove of the lamp seat. The LED modules are received in the lamp seat for emitting light out from the lampshade.

Claims

1. An LED lamp comprising:

a lamp seat having a bottom surface, the lamp seat defining a groove and a receiving chamber on the bottom surface;

a lampshade covering the lamp seat, the lampshade having a top surface and forming a protruding portion on the top surface slidably engaged in the groove of the lamp seat, and the top surface intimately contacting with the bottom surface; and

a plurality of LED modules fittingly received in the receiving chamber, for emitting light into the lampshade through the top surface and to traverse out from the lampshade.

2. The LED lamp as claimed in claim 1, wherein the lampshade is light-pervious for transmitting the light emitting from the LED modules to an exterior.

3. The LED lamp as claimed in claim 2, wherein the lampshade comprises a front surface and a rear surface, the front and rear surface are coated with reflective films respectively.

4. The LED lamp as claimed in claim 3, wherein the lampshade comprises two lateral surfaces and the lateral surfaces are coated with reflective films respectively.

5. The LED lamp as claimed in claim 2, wherein the lampshade comprises a bottom surface, and a transparent layer is formed on an outside of the bottom surface.

6. The LED lamp as claimed in claim 5, wherein a photosensitive layer is formed on an outside of the transparent layer.

7. The LED lamp as claimed in claim 5, wherein the transparent layer is made from silicon or Al2O3.

8. The LED lamp as claimed in claim 2, wherein a baffle-plate extends outwardly and downwardly from a front end of the top surface to prevent from dust particles entering into the LED lamp.

9. The LED lamp as claimed in claim 1, wherein a material of the lampshade is selected from polymethylmethacrylate, poly carbonate, silicone, epoxy and polycrylate or a glass containing a material selected from the group consisting of ZnO, B₂O₃, SiO₂, Nb₂O₃, Na₂O, and Li₂O₅.

10. An LED lamp comprising:

a lamp seat having a flat surface, a receptacle defined in the flat surface and two parallel trapezoidal grooves defined in the flat surface;

a lampshade including a flat surface and two parallel trapezoidal protruding portions formed on the flat surface thereof and slidably engaged in the grooves of the lamp seat, widest parts of the protruding portions being farthest from the flat surface of the lampshade, the flat surface of the lamp seat intimately contacting with the flat surface of the lampshade; and

a plurality of LED modules fittingly received in the lamp receptacle and facing toward the lampshade.