JPH0375475U - - Google Patents
Info
- Publication number
- JPH0375475U JPH0375475U JP13609189U JP13609189U JPH0375475U JP H0375475 U JPH0375475 U JP H0375475U JP 13609189 U JP13609189 U JP 13609189U JP 13609189 U JP13609189 U JP 13609189U JP H0375475 U JPH0375475 U JP H0375475U
- Authority
- JP
- Japan
- Prior art keywords
- light guide
- light source
- face
- incident end
- source device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009792 diffusion process Methods 0.000 description 1
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
第１図は本考案の一実施例の断面図、第２図は
従来の面光源装置の断面図である。
１……光源、２……導光体、３……拡散面、４
……反射面、５……入射端面。
FIG. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is a sectional view of a conventional surface light source device. 1... Light source, 2... Light guide, 3... Diffusion surface, 4
...Reflection surface, 5...Incidence end surface.
Claims (1)
と、導光体の表面に設けた拡散面と、導光体の裏
面に設けた反射面とよりなる面光源装置において
、前記導光体の入射端面を断面形状が拡散面側及
び反射面側に比べて中央が導光体内側に位置する
Ｖ字状をなすことを特徴とする面光源装置。 In a surface light source device comprising a light source, a light guide whose incident end face is arranged close to the light source, a diffusing surface provided on the surface of the light guide, and a reflective surface provided on the back surface of the light guide, the light guide 1. A surface light source device characterized in that the cross-sectional shape of the incident end face is V-shaped with the center located inside the light guide compared to the diffusing surface side and the reflective surface side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989136091U JP2519816Y2 (en) | 1989-11-27 | 1989-11-27 | Surface light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989136091U JP2519816Y2 (en) | 1989-11-27 | 1989-11-27 | Surface light source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0375475U true JPH0375475U (en) | 1991-07-29 |
| JP2519816Y2 JP2519816Y2 (en) | 1996-12-11 |
Family
ID=31683318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989136091U Expired - Lifetime JP2519816Y2 (en) | 1989-11-27 | 1989-11-27 | Surface light source |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2519816Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4965173U (en) * | 1972-09-19 | 1974-06-07 | ||
| JPS56139189U (en) * | 1980-03-24 | 1981-10-21 | ||
| JPS6326873U (en) * | 1986-08-04 | 1988-02-22 |
-
1989
- 1989-11-27 JP JP1989136091U patent/JP2519816Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4965173U (en) * | 1972-09-19 | 1974-06-07 | ||
| JPS56139189U (en) * | 1980-03-24 | 1981-10-21 | ||
| JPS6326873U (en) * | 1986-08-04 | 1988-02-22 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2519816Y2 (en) | 1996-12-11 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |