LIGHTING DEVICE

• US 20150292725A1
• Filed: 11/08/2013
• Published: 10/15/2015
• Est. Priority Date: 11/09/2012
• Status: Abandoned Application

• Current Assignee: OSRAM GmbH (Ams-Osram AG)
• Original Assignee: OSRAM GmbH (Ams-Osram AG)
• Inventors: Liu, Tingming, Zheng, Shengmei, Li, Aiai, Yang, Jianghui
• Application Number:
  US14/438,639
• Publication Number:
  US 20150292725A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F21K 9/232 specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
• CPC Class Codes: F21V 23/002 Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21V 29/86 Ceramics or glass
• CPC Class Codes: F21V 3/02 characterised by the shape
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

Various embodiments may relate to a lighting device, including an electronic device housing, an electrical connecting part mounted at one side of the electronic device housing, a heat sink mounted at the other side of the electronic device housing, and a plurality of light sources arranged on the heat sink. The heat sink is made of a transparent material and forms at least a part of a light emergent surface for the light from the light sources.

Claims

1. A lighting device, comprising:

an electronic device housing;

an electrical connecting part mounted at one side of the electronic device housing;

a heat sink mounted at the other side of the electronic device housing; and

a plurality of light sources arranged on the heat sink, wherein the heat sink is made of a transparent material and forms at least a part of a light emergent surface for the light from the light sources.

2. The lighting device according to claim 1, wherein the heat sink comprises an end plate for supporting the light sources, which is designed to be a circuit board.

3. The lighting device according to claim 2, wherein the heat sink comprises a base body designed to be hollow, and an opening end of the base body distal from the electronic device housing is closed by the end plate, wherein the base body and the end plate are designed so that the light from the light sources emerge through the base body and the end plate.

4. The lighting device according to claim 3, wherein the base body and the end plate are integrally formed.

5. The lighting device according to claim 1,

wherein the heat sink is made of glass.

6. The lighting device according to claim 2,

wherein two surfaces of the end plate facing each other are formed to be a first mounting surface and a second mounting surface for assembling the light sources.

7. The lighting device according to claim 6,

wherein the light sources are respectively arranged on the first mounting surface and the second mounting surface.

8. The lighting device according to claim 6,

wherein the light sources are arranged on the first mounting surface and the second mounting surface in a circular shape.

9. The lighting device according to claim 1,

wherein the lighting device further comprises a bulb, and the bulb and the heat sink jointly define the shape of the bulb of an incandescent lamp.

10. The lighting device according to claim 1,

wherein the lighting device further comprises at least two conductive wires, wherein, the light sources are electrically connected with the electronic devices provided within the electronic device housing through the conductive wires.

11. The lighting device according to claim 1,

wherein the light sources are LED chips.