JPH0440269U - - Google Patents
Info
- Publication number
- JPH0440269U JPH0440269U JP8223890U JP8223890U JPH0440269U JP H0440269 U JPH0440269 U JP H0440269U JP 8223890 U JP8223890 U JP 8223890U JP 8223890 U JP8223890 U JP 8223890U JP H0440269 U JPH0440269 U JP H0440269U
- Authority
- JP
- Japan
- Prior art keywords
- light
- guide plate
- source means
- section
- emitting 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.)
- Pending
Links
- 238000002310 reflectometry Methods 0.000 claims 1
- 238000009792 diffusion process Methods 0.000 description 1
Landscapes
- Optical Elements Other Than Lenses (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Light Guides In General And Applications Therefor (AREA)
Description
第１図は一実施例の面発光装置の断面図、第２
図は第１図のＸ−Ｘ矢視断面図、第３図は従来の
面発光装置の第１従来例の断面図、第４図は従来
の面発光装置の第２従来例の断面図、第５図は従
来の面発光装置の第３従来例の断面図である。
図中、１……拡散板、２……導光板、２ｂ……
側面入光部、３……蛍光管、７……ヘアライン加
工部、８……鏡面発射面、９……グラデーシヨン
層部、１０……反射面である。
Fig. 1 is a cross-sectional view of a surface emitting device of one embodiment, and Fig.
The figure is a sectional view taken along the line X-X in FIG. 1, FIG. 3 is a sectional view of a first conventional example of a conventional surface emitting device, and FIG. 4 is a sectional view of a second conventional example of a conventional surface emitting device. FIG. 5 is a sectional view of a third conventional example of a conventional surface emitting device. In the figure, 1... Diffusion plate, 2... Light guide plate, 2b...
Side light entrance part, 3... Fluorescent tube, 7... Hairline processing part, 8... Mirror emission surface, 9... Gradation layer part, 10... Reflection surface.
Claims (1)
用される面発光装置において、 光を拡散出射することにより前記面発光部を表
側に形成する拡散板と、 該拡散板の裏側に設けられるとともに、側面に
線光源手段が配設されて該線光源手段からの光を
内部に透過させ、かつその裏面において光を反射
させる導光板と、 該導光板の前記裏面に対向して設けられる鏡面
を有してなり、該鏡面において前記導光板の裏面
からの光を反射する第１反射部と、を具備してな
る面発光装置であつて、 前記導光板の裏面を光反射性及び透過性をもた
せるとともに前記線光源手段の長手方向に対して
略平行となるように方向性を持たせて粗面化処理
し、 かつ、前記光源手段から遠くなるにつれて反射
面積が暫時大きくなるような反射性を有するグラ
デーシヨン層部からなる第２反射部を、前記導光
板の裏面上に形成したことを特徴とする面発光装
置。[Claims for Utility Model Registration] A surface light emitting device that is used with a surface light emitting section in contact with or close to an illuminated object, comprising: a diffuser plate that forms the surface light emitting section on the front side by diffusing and emitting light; a light guide plate which is provided on the back side of the diffuser plate and has a line light source means on its side surface to transmit light from the line light source means inside and reflect the light on the back side; A surface light emitting device comprising: a first reflecting section having a mirror surface provided opposite to the back surface of the light guide plate, and reflecting light from the back surface of the light guide plate on the mirror surface; The back surface is made light reflective and transparent, and is roughened with directionality so as to be substantially parallel to the longitudinal direction of the linear light source means, and the reflective area increases as the distance from the light source means increases. A surface emitting device characterized in that a second reflecting section made of a gradation layer section having a reflectivity such that the light becomes temporarily large is formed on the back surface of the light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8223890U JPH0440269U (en) | 1990-08-03 | 1990-08-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8223890U JPH0440269U (en) | 1990-08-03 | 1990-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0440269U true JPH0440269U (en) | 1992-04-06 |
Family
ID=31628871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8223890U Pending JPH0440269U (en) | 1990-08-03 | 1990-08-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0440269U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0725300A2 (en) | 1995-01-31 | 1996-08-07 | Minolta Co., Ltd. | A display device with a display member illuminator, an appliance provided with a display device |
| JP2004296345A (en) * | 2003-03-27 | 2004-10-21 | Toto Ltd | Surface light emitting device |
-
1990
- 1990-08-03 JP JP8223890U patent/JPH0440269U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0725300A2 (en) | 1995-01-31 | 1996-08-07 | Minolta Co., Ltd. | A display device with a display member illuminator, an appliance provided with a display device |
| US6285420B1 (en) | 1995-01-31 | 2001-09-04 | Minolta Co., Ltd. | Edge illuminated display device with light guiding member |
| JP2004296345A (en) * | 2003-03-27 | 2004-10-21 | Toto Ltd | Surface light emitting device |
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