Light-Emitting Planar Body-Structured Body

• US 20070297045A1
• Filed: 04/30/2004
• Published: 12/27/2007
• Est. Priority Date: 05/02/2003
• Status: Abandoned Application

• Current Assignee: Availvs Corporation
• Original Assignee: Availvs Corporation
• Inventors: Sakai, Mieko, Saito, Kenichiro, Inoue, Yukihiko, Shinomiya, Kenichiro
• Application Number:
  US10/555,003
• Publication Number:
  US 20070297045A1
• Time in Patent Office: Days
• US Class Current: 359/350
• CPC Class Codes: F21W 2111/00 Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: G09F 13/04 Signs, boards or panels, illuminated from behind the insignia
• CPC Class Codes: H05B 33/18 characterised by the nature or concentration of the activator

Abstract

A light-emitting planar body-structured body characterized in that it comprises an LED (light-emitting diode) light source which radiates ultraviolet radiation or near ultraviolet radiation and a planar body provided disposed in front thereof, and that the planar body is a light-transmitting resin molding containing dispersed therein at least one type of phosphors and light-storing bodies together with light-transmitting inorganic particles.

Claims

1. A light-emitting planar body-structured body characterized in that it comprises an LED (light-emitting diode) light source which radiates ultraviolet radiation or near ultraviolet radiation and a planar body provided in front thereof, and that the planar body is a light-transmitting resin molding containing dispersed therein at least one type of phosphors and light-storing bodies together with light-transmitting inorganic particles different in particle diameter that are blended and dispersed.

2. A light-emitting planar body-structured body of claim 1, characterized in that the planar body made of light-transmitting resin molding contains 30 wt % or less of at least one type of phosphors and light-storing bodies.

3. A light-emitting planar body-structured body of claim 1, characterized in that the planar body made of light-transmitting resin molding contains 10 wt % or more of light-transmitting inorganic particles.

4. A light-emitting planar body-structured body of claim 1, characterized in that the planar body made of resin molding contains a coloring pigment.

5. A light-emitting planar body-structured body of claim 1, characterized in that the light-transmitting inorganic particles different in particle diameter contained in the planar body made of resin molding is constituted of small particles components each 180 μ

m to 9.5 mm in size and fine particle components each under 180 μ

m in size.

6. A light-emitting planar body-structured body of claim 5, characterized in that the ratio by weight of the small particle component (W1) to the fine particle component (W2), W1/W2, is in the range of 1/5 to 8/1.

7. A light-emitting planar body-structured body of claim 1, characterized by having a reflector body provided on at least one of the back and the side parts of the LED light source.

8. A light-emitting planar body-structured body of claim 1, characterized by having the LED light source embedded in and united with the planar body.

9. A light-emitting planar body-structured body of claim 1, characterized in that the light-transmitting resin molding having embedded therein the LED light source is provided in contact with the back plane of the planar body made of light-transmitting resin molding.

10. A light-emitting planar body-structured body of claim 1, characterized in that a thickness from the front to the back as measured from the surface of the planar body is 50 mm or less.

11. A light-emitting planar body-structured body of claim 1, characterized in that the LED light source is a light diffusion type ultraviolet LED.

12. A light-emitting planar body-structured body of claim 2, characterized in that the planar body made of light-transmitting resin molding contains 10 wt % or more of light-transmitting inorganic particles.

13. A light-emitting planar body-structured body of claim 2, characterized in that the planar body made of resin molding contains a coloring pigment.

14. A light-emitting planar body-structured body of claim 3, characterized in that the planar body made of resin molding contains a coloring pigment.

15. A light-emitting planar body-structured body of claim 12, characterized in that the planar body made of resin molding contains a coloring pigment.

16. A light-emitting planar body-structured body of claim 2, characterized in that the light-transmitting inorganic particles different in particle diameter contained in the planar body made of resin molding is constituted of small particles components each 180 μ

m to 9.5 mm in size and fine particle components each under 180 μ

m in size.

17. A light-emitting planar body-structured body of claim 3, characterized in that the light-transmitting inorganic particles different in particle diameter contained in the planar body made of resin molding is constituted of small particles components each 180 μ

m to 9.5 mm in size and fine particle components each under 180 μ

m in size.

18. A light-emitting planar body-structured body of claim 12, characterized in that the light-transmitting inorganic particles different in particle diameter contained in the planar body made of resin molding is constituted of small particles components each 180 μ

m to 9.5 mm in size and fine particle components each under 180 μ

m in size.

19. A light-emitting planar body-structured body of claim 4, characterized in that the light-transmitting inorganic particles different in particle diameter contained in the planar body made of resin molding is constituted of small particles components each 180 μ

m to 9.5 mm in size and fine particle components each under 180 μ

m in size.

20. A light-emitting planar body-structured body of claim 13, characterized in that the light-transmitting inorganic particles different in particle diameter contained in the planar body made of resin molding is constituted of small particles components each 180 μ

m to 9.5 mm in size and fine particle components each under 180 μ

m in size.