JPS6337279U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例の読取ユニツトの平
面図、第２図は第１図の正面透視図で読取面が１
ａの場合、第３図は同じく読取面が１ｂの場合の
正面透視図、第４図は従来の一例の正面透視図で
ある。 １ａ，１ｂ……読取面、２，２′……蛍光灯、
３，３′，３ａ……反射鏡、４……レンズ、５…
…受光素子、６……ボード面、７……反射鏡３ａ
の回転軸、８，８′……巻取り部。 FIG. 1 is a plan view of a reading unit according to an embodiment of the present invention, and FIG. 2 is a front perspective view of FIG.
In the case of a, FIG. 3 is a front perspective view when the reading surface is 1b, and FIG. 4 is a front perspective view of an example of the conventional device. 1a, 1b...Reading surface, 2, 2'...Fluorescent lamp,
3, 3', 3a... Reflector, 4... Lens, 5...
...Photodetector, 6...Board surface, 7...Reflector 3a
rotating shaft, 8, 8'... winding section.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 左右の巻取部と、左右いずれか一方にあり蛍光
灯および反射鏡を有する投影部と、中央部にレン
ズおよび受光素子を有する受光部とからなる巻取
式電子黒板の読取りユニツトにおいて、前記投影
部を左右双方に設け、前記中央部の受光部の光軸
を前記蛍光灯に対し平行の方向に保持し、かつ左
または右からの読取り反射光を前記受光部へ導く
ための方向切替可能な反射鏡を設けたことを特徴
とする巻取式電子黒板の読取りユニツト。 A reading unit for a roll-up type electronic whiteboard includes left and right roll-up parts, a projection part on either the left or right side having a fluorescent lamp and a reflecting mirror, and a light-receiving part having a lens and a light-receiving element in the center. sections are provided on both the left and right sides, the optical axis of the light receiving section in the central section is held in a direction parallel to the fluorescent lamp, and the direction is switchable for guiding read reflected light from the left or right to the light receiving section. A retractable electronic blackboard reading unit characterized by being equipped with a reflective mirror.