JPS62123991U - - Google Patents
Info
- Publication number
- JPS62123991U JPS62123991U JP1151486U JP1151486U JPS62123991U JP S62123991 U JPS62123991 U JP S62123991U JP 1151486 U JP1151486 U JP 1151486U JP 1151486 U JP1151486 U JP 1151486U JP S62123991 U JPS62123991 U JP S62123991U
- Authority
- JP
- Japan
- Prior art keywords
- screen
- illumination means
- linear
- light source
- reading means
- 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
- 238000005286 illumination Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Facsimile Scanning Arrangements (AREA)
- Drawing Aids And Blackboards (AREA)
- Position Input By Displaying (AREA)
Description
第１図は本考案実施例の電子黒板の照光手段の
断面図、第２図は反射光強度分布図、第３図は電
子黒板の模式図である。
１，１１…画面、２，１２…照光手段、１３…
読取手段、２１…線状光源、２２…反射枠、２３
…反射鏡、２２１…主反射面、２２２…反射率低
下手段。
FIG. 1 is a sectional view of the illumination means of the electronic whiteboard according to an embodiment of the present invention, FIG. 2 is a reflected light intensity distribution diagram, and FIG. 3 is a schematic diagram of the electronic blackboard. 1, 11... Screen, 2, 12... Illumination means, 13...
Reading means, 21... Linear light source, 22... Reflective frame, 23
...Reflecting mirror, 221... Main reflecting surface, 222... Reflectance reducing means.
Claims (1)
光手段による画面の反射光を受取る読取手段とを
有した電子黒板において、前記照光手段は線状光
源と、線状光源を覆い主反射面の略中央部に反射
率低下手段を有した反射枠と、反射光を読取手段
に導く反射鏡を具備した事を特徴とする電子黒板
。 In an electronic whiteboard having a screen, linear illumination means facing the screen, and reading means for receiving light reflected from the screen by the illumination means, the illumination means includes a linear light source and a main reflecting surface that covers the linear light source. What is claimed is: 1. An electronic blackboard comprising: a reflective frame having a reflectance reducing means approximately in the center thereof; and a reflective mirror for guiding reflected light to a reading means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1151486U JPS62123991U (en) | 1986-01-29 | 1986-01-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1151486U JPS62123991U (en) | 1986-01-29 | 1986-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62123991U true JPS62123991U (en) | 1987-08-06 |
Family
ID=30798800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1151486U Pending JPS62123991U (en) | 1986-01-29 | 1986-01-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62123991U (en) |
-
1986
- 1986-01-29 JP JP1151486U patent/JPS62123991U/ja active Pending
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