Lighting module

Patent metadata

Field	Value
Publication number	US-9880345-B2
Application number	US-201214232741-A
Country	US
Kind code	B2
Filing date	Jul 25, 2012
Priority date	Jul 26, 2011
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

A lighting module may be provided that includes: a first and a second light source units which are disposed to face each other; a first case in which the first light source unit is disposed; a second case in which the second light source unit is disposed; a first plate of which one side is connected to the first case, of which the other side is connected to the second case and which includes a first hole through which light emitted from the first and the second light source units passes; a second plate which is disposed to face the first plate and includes a second hole through which the light emitted from the first and the second light source units passes; and a first and a second optical sheets which are disposed on the first and the second plates.

First claim

The invention claimed is:

1. A lighting module, comprising:
a first light source and a second light source provided to face each other;
a first case, the first light source provided on the first case;
a second case, the second light source provided on the second case;
a first plate having a first side connected to the first case and a second side connected to the second case, the first plate having a plurality of first holes through which light emitted from the first and the second light sources passes;
a second plate facing the first plate and having a plurality of second holes through which the light emitted from the first and the second light sources passes; and
first and second optical sheets provided on the first and the second plates, wherein a sum of sizes of the first holes is different from a sum of sizes of the second holes, and wherein an amount of the light emitted through the first plate is different from an amount of the light emitted through the second plate.

2. The lighting module of claim 1 , wherein the first optical sheet diffusely reflects at least a part of the light emitted from the first and the second light sources, and wherein the second optical sheet specularly or regularly reflects at least a part of the light emitted from the first and the second light sources.

3. The lighting module of claim 1 , wherein the first holes and the second holes are provided uniformly.

4. The lighting module of claim 1 , wherein the first light source includes a substrate and a light emitting device provided on the substrate, wherein the first case includes a base on which the substrate is provided and an upper case and a lower case, both of which are provided to face each other, wherein the upper case is coupled to one side of the first plate and wherein the lower case is coupled to one side of the second plate.

5. The lighting module of claim 1 , further including a reflective member which is provided in the first case and reflects the light emitted from the first light source toward the second light source.

6. The lighting module of claim 5 , wherein the first light source includes a substrate and a light emitting device provided on the substrate, wherein the reflective member includes a first reflective member and a second reflective member, wherein the first reflective member is provided on one side of the light emitting device, and wherein the second reflective member is provided on the other side of the light emitting device.

7. The lighting module of claim 6 , wherein a reflective surface of the first reflective member and a reflective surface of the second reflective member are symmetrical or asymmetrical to each other.

8. The lighting module of claim 1 , further including an optical member which is provided in the first case and collects the light emitted from the first light source toward the second light source.

9. The lighting module of claim 1 , further including a reflector which is provided between the first light source and the second light source and includes a reflective surface reflecting the light emitted from the first and the second light sources toward the first and the second plates.

10. The lighting module of claim 9 , wherein the reflector comprises a plurality of the reflective surfaces and wherein the plurality of the reflective surfaces have the same curvature or mutually different curvatures.

11. The lighting module of claim 1 , wherein the first light source includes a substrate and a light emitting device provided on the substrate, wherein the first case includes a base on which the substrate is provided and an upper case and a lower case, both of which are provided to face each other, wherein the upper case has a first recess into which one end of the first plate is inserted, and wherein the lower case has a second recess into which one end of the second plate is inserted.

12. A lighting module, comprising:
a first light source and a second light source provided to face each other;
a first case, the first light source provided in the first case;
a second case, the second light source provided in the second case;
a first plate having a first side connected to the first case and a second side connected to the second case, the first plate having a plurality of holes through which a light emitted from the first and the second light sources passes, and including an inner surface which reflects the light emitted from the first and the second light sources; and
a second plate facing the first plate that transmits the light emitted from the first and the second light sources,
wherein an amount of light passed through the holes of the first plate is different from an amount of light transmitted through the second plate.

13. The lighting module of claim 12 , wherein the first plate includes both a central portion including the hole and an outer edge provided on both sides of the central portion.

14. The lighting module of claim 12 , further including an optical sheet provided on the first plate, wherein the optical sheet diffusely reflects incident light.

15. A lighting module, comprising:
first light source and a second light source provided to face each other;
a first case, the first light source provided in the first case and the first case having a first reflective surface that reflects light emitted from the first light source and a first disposition surface on which the first light source is provided;
a second case, the second light source provided in the second case and the second case having a second reflective surface reflecting light emitted from the second light source and a second disposition surface on which the second light source is provided;
a first optical plate having a first side connected to the first case, and a second side connected to the second case, the first optical plate emitting light provided by the first case; and
a second optical plate facing the first optical plate and emitting light provided by the second case,
wherein a shape of the first disposition surface is different from a shape of the first reflective surface, and
wherein an amount of light emitted through the first optical plate is different from an amount of light emitted through the second optical plate.

16. The lighting module of claim 15 , further comprising a reflector which is disposed between the first case and the second case and reflects the light provided by the first and the second cases toward the first and the second optical plates.

17. The lighting module of claim 16 , wherein the reflector comprises a first reflective surface and a second reflective surface, wherein the first reflective surface reflects incident light to the first optical plate, wherein the second reflective surface reflects the incident light to the second optical plates, wherein the first reflective surface of the reflector has curvature different from that of the second reflective surface of the reflector.

18. The lighting module of claim 17 , wherein the longest distance from the first plate to the first reflective surface of the reflector is different from the longest distance from the second plate to the second reflective surface of the reflector.

19. The lighting module of claim 15 , wherein the first reflective surface of the first case converts incident light into parallel light.

20. The lighting module of claim 15 , wherein the first disposition surface is parallel with a top surface of the second optical plate.

Assignees

• Kim Ki Hyun
• Kim Eun Hwa
• Maeng Ji Hyoung
• Lg Innotek Co Ltd

Inventors

• Kim Ki Hyun
• Kim Eun Hwa
• Maeng Ji Hyoung

Classifications

• F21V7/043

  with cylindrical surface · CPC title

• F21V7/04

  Optical design · CPC title

• F21V7/0008

  providing for indirect lighting · CPC title

• F21V15/01

  Housings, e.g. material or assembling of housing parts (F21V15/02 takes precedence {housings forming signs or letters G09F13/04}) · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title