JPS6341150U - - Google Patents
Info
- Publication number
- JPS6341150U JPS6341150U JP13407086U JP13407086U JPS6341150U JP S6341150 U JPS6341150 U JP S6341150U JP 13407086 U JP13407086 U JP 13407086U JP 13407086 U JP13407086 U JP 13407086U JP S6341150 U JPS6341150 U JP S6341150U
- Authority
- JP
- Japan
- Prior art keywords
- subject
- light
- receiving element
- light source
- light receiving
- 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
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000003384 imaging method Methods 0.000 description 1
Landscapes
- Drawing Aids And Blackboards (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
- Position Input By Displaying (AREA)
- Facsimiles In General (AREA)
Description
第１図は本考案の一実施例の電子黒板２１の横
断面図、第２図は電子黒板２１において筆記シー
ト２４および走行ローラ２２，２３等を取外した
状態の正面図、第３図は電子黒板２１の光学的特
性を説明する横断面図、第４図は従来技術の電子
黒板１の横断面図、第５図は電子黒板１の筆記シ
ート４および走行ローラ２，３等を取外した状態
の正面図、第６図は電子黒板１の光学的特性を説
明する横断面図である。
２１……電子黒板、２４……筆記シート、２５
……ハウジング、２６……光源、２８……反射鏡
、３０……遮光部材、３２……撮像手段、３３〜
３５……虚像。
FIG. 1 is a cross-sectional view of an electronic blackboard 21 according to an embodiment of the present invention, FIG. 2 is a front view of the electronic blackboard 21 with the writing sheet 24, running rollers 22, 23, etc. removed, and FIG. FIG. 4 is a cross-sectional view illustrating the optical characteristics of the blackboard 21, FIG. 4 is a cross-sectional view of the electronic blackboard 1 of the prior art, and FIG. 6 is a cross-sectional view illustrating the optical characteristics of the electronic blackboard 1. FIG. 21...Electronic blackboard, 24...Writing sheet, 25
... Housing, 26 ... Light source, 28 ... Reflector, 30 ... Light shielding member, 32 ... Imaging means, 33 -
35...Virtual image.
Claims (1)
つて受光素子に入射させる反射手段とを含み、 前記光源は反射手段に関して受光素子と反対側
に配置されていることを特徴とする光学装置。[Claims for Utility Model Registration] Includes a subject, a light source that irradiates light onto the subject, and a reflecting means that reflects the light from the subject and makes it incident on a light receiving element along an optical axis in a predetermined direction, and the light source is reflective. An optical device characterized in that the means is disposed on the opposite side of the light receiving element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13407086U JPS6341150U (en) | 1986-09-01 | 1986-09-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13407086U JPS6341150U (en) | 1986-09-01 | 1986-09-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6341150U true JPS6341150U (en) | 1988-03-17 |
Family
ID=31034967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13407086U Pending JPS6341150U (en) | 1986-09-01 | 1986-09-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6341150U (en) |
-
1986
- 1986-09-01 JP JP13407086U patent/JPS6341150U/ja active Pending
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