LIGHTING APPARATUS

• US 20110222292A1
• Filed: 12/09/2010
• Published: 09/15/2011
• Est. Priority Date: 04/10/2010
• Status: Active Grant

• Current Assignee: LG Innotek Company Limited (LG Corporation)
• Original Assignee: LG Innotek Company Limited (LG Corporation)
• Inventors: Kim, Eunhwa, KONG, Kyung-il, Hyun, Ji Yeon, Kang, Seok Jin
• Granted Patent: US 8,215,801 B2
• Time in Patent Office: Days
• US Class Current: 362/294
• CPC Class Codes: F21S 8/026 intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
• CPC Class Codes: F21V 13/04 the elements being reflectors and refractors for vehicle rear lights F21S43/40
• CPC Class Codes: F21V 29/75 with fins or blades having different shapes, thicknesses or spacing
• CPC Class Codes: F21V 29/763 the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21V 29/767 the planes containing the fins or blades having directions perpendicular to the light emitting axis
• CPC Class Codes: F21V 7/0008 providing for indirect lighting
• CPC Class Codes: F21V 7/0033 with successive reflections from one reflector to the next or following
• CPC Class Codes: F21V 7/05 plane
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

Disclosed is a lighting apparatus. The lighting apparatus includes:

• • a first and a second light emitting diode (LED) module including a plurality of LEDs disposed on one side of a substrate respectively;
  • a heat radiating body which radiates heat from the plurality of the LEDs, includes a space for housing the first and the second LED modules, and includes an opening allowing light emitted from the plurality of the LEDs of the first and the second LED modules to be emitted; and,
  • a reflector being disposed on the heat radiating body and reflecting the light emitted from the plurality of the LEDs of the first and the second LED modules to the opening.

Claims

1. A lighting apparatus comprising:

a first and a second light emitting diode (LED) module comprising a plurality of LEDs disposed on one side of a substrate respectively;

a heat radiating body which radiates heat from the plurality of the LEDs, comprises a space for housing the first and the second LED modules, and comprises an opening allowing light emitted from the plurality of the LEDs of the first and the second LED modules to be emitted; and

,

a reflector being disposed on the heat radiating body and reflecting the light emitted from the LEDs of the first and the second LED modules to the opening.

2. The lighting apparatus of claim 1, wherein an outer peripheral surface of the heat radiating body comprises one or more heat radiating fins.

3. The lighting apparatus of claim 1, wherein the heat radiating body comprises a first heat radiating body and a second heat radiating body, and wherein the first heat radiating body and the second heat radiating body are integrally formed respectively and coupled to each other.

4. The lighting apparatus of claim 1, wherein projections is formed on one sides of the first and the second LED modules, and wherein the reflector comprises a locking part to which the projections of the first and the second LED modules are coupled.

5. The lighting apparatus of claim 1, further comprising an optic plate condensing or diffusing light emitted from the opening.

6. The lighting apparatus of claim 5, wherein the optic plate comprises:

an optic sheet condensing or diffusing light incident on one side thereof;

a glass plate which is disposed on the other side of the optic sheet and prevents the optic sheet from being transformed by heat generated from the plurality of the LEDs; and

a frame surrounding corners of the glass plate,

wherein an outermost corner of the frame is coupled to the opening.

7. The lighting apparatus of claim 1, further comprising a reflection cover for condensing in the light emission direction the light emitted through the opening.

8. The lighting apparatus of claim 1, wherein the plurality of the LEDs of the first and the second LED modules are disposed in at least two lines on the substrate.

9. The lighting apparatus of claim 1, wherein an outer peripheral surface of the heat radiating body has a cylindrical shape, and wherein the other sides of the first and the second LED substrates are respectively disposed on a pair of inner walls facing each other among a plurality of inner walls forming the space.

10. The lighting apparatus of claim 9, wherein the space has a shape of a hexahedron, and wherein one side of the hexahedron is the opening.

11. The lighting apparatus of claim 1, wherein the reflective surface of the reflector is inclined with respect to each of one sides of the first and the second LED modules, and wherein the reflective surface is inclined toward the opening of the heat radiating body.

12. The lighting apparatus of claim 11, wherein the reflective surface of the reflector comprises two surfaces, and wherein the ends of the two surfaces are in contact with each other at a predetermined angle.

13. The lighting apparatus of claim 5, wherein, when the reflective surface of the reflector is viewed from the opening, the LEDs of the first and the second LED modules are arranged such that images formed on the reflective surface are uniformly distributed, and such that images located at the outermost circumference among the distributed images form a circle.

14. The lighting apparatus of claim 1, further comprising a collimating lens surrounding the LEDs of the first and the second LED modules and collimating light emitted from around the plurality of the LEDs.

15. The lighting apparatus of claim 14, further comprising a holder surrounding the collimating lens.

16. A lighting apparatus comprising:

an LED module comprising a plurality of LEDs disposed on a substrate;

a heat radiating body comprising a space for housing the LED modules, and

an opening allowing light emitted from the LED modules to be emitted to the outside; and

,

a reflector which is disposed in the space of the heat radiating body to change the path of the light emitted from the plurality of the LEDs.

17. The lighting apparatus of claim 16, wherein the LED module comprises a first and a second LED module, and wherein one side of the reflector is inclined with respect to one side of the first LED module and the other side of the reflector is inclined with respect to one side of the second LED module.

18. The lighting apparatus of claim 16, wherein the LED module comprises projections formed on one side of the substrate, and wherein the reflector comprises locking parts to which the projections are coupled.

19. The lighting apparatus of claim 16, further comprising an optic plate condensing or diffusing light emitted from the opening.

20. The lighting apparatus of claim 16, wherein the plurality of the LEDs are disposed in at least two lines on the substrate.