LED LAMP WITH EXTERNAL LIGHT SOURCE

• US 20160230940A1
• Filed: 10/13/2015
• Published: 08/11/2016
• Est. Priority Date: 02/06/2015
• Status: Active Grant

• Current Assignee: Kaistar Lighting (Xiamen) Co.,Ltd.
• Original Assignee: Kaistar Lighting (Xiamen) Co.,Ltd.
• Inventors: Tseng, Chih Min, Chuang, Yung-Yi
• Granted Patent: US 9,664,355 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F21K 9/27 Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
• CPC Class Codes: F21K 9/66 Details of globes or covers forming part of the light source
• CPC Class Codes: F21V 19/005 by permanent fixing means, e.g. gluing, riveting or embedding in a potting compound
• CPC Class Codes: F21V 3/061 the material being glass
• CPC Class Codes: F21V 3/10 characterised by coatings
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

This invention discloses an LED lamp with an external light source, including a tube, an LED light source plate. The LED light source plate includes a strip base and a plurality of LED illuminants. The lamp has a strip through hole along the length. direction of the lamp. The strip base is fixed to the external circumference surface of the lamp, the plurality of LED illuminants are placed between the two side surfaces of the strip through hole. Preferably, the lamp is a circular glass lamp, the strip through hole is on the top of the lamp. Furthermore, the inner surface of the lamp is covered with a diffusion layer. The present invention is beneficial for automatic production and reducing the cost. At the same time, the LED light has a good diffusion and the waste heat is easy to dissipate.

Claims

1. An LED lamp with an external light source, comprising:

a tube and an LED light source plate;

wherein the LED light source plate comprises a strip base and a plurality of LED. illuminants installed on the strip base, the lamp defines a strip through hole along an axial direction of the lamp, the strip base is fixed to an external circumference surface of the tube, the plurality of the LED illuminants are placed between two side surfaces. of the strip through hole.

2. The LED lamp of claim 1, wherein the tube is a circular glass tube, the strip through hole is on the top of the lamp, a diffusion layer is located on the inner surface of the circular glass lamp.

3. The LED lamp of claim 1, wherein each of the plurality of LED illuminants is located near to the external circumference surface of the lamp.

4. The LED lamp of claim 1, wherein a width of the strip through hole is less than a width of the strip base, the width of the strip base is less than a diameter of the lamp, a ratio of the width of the strip base to the diameter of the lamp ranges from 1:

2 to 1;

7.

5. The LED lamp of claim 1, wherein a width of the strip through hole ranges from 4.5 mm to 5.5 mm, the width of the strip base ranges from 8 mm to 12 mm.

6. The LED lamp of claim 1, wherein the strip base is fixed to the lamp by an adhesive agent.

7. The LED lamp of claim 1, wherein the tube further comprises two connection planes respectively located on two sides of the external circumference surface of the strip through hole, the strip base is fixed to the connection planes with a plurality of double side tapes.

8. The LED lamp of claim 1, wherein the strip base is fixed to the tube by at least one adhesive tape located on the external circumference surface of the lamp.

9. The LED lamp of claim 1, wherein two laterals of the strip through hole are bent inward, two protuberances are formed on the external circumference surface of the tube to form a V-shape slot, the strip base is locked by the two V-shape slots to form a fixed connection with the lamp.

10. The LED lamp of claim 9, wherein the width of the strip base ranges from 8 mm to 9 mm.