【図面の簡単な説明】[Brief explanation of drawings] 第１図は本考案に係る自走式スキヤナヘツドの
第１実施例の概略図、第２図は第１図の自走式ス
キヤナヘツドを適用した電子黒板の概略構成図、
第３図は第１図のスキヤナヘツドの概略正面図、
第４図は第１図中のイメージセンサの構成の一例
を示す図、第５図は本考案に係る自走式スキヤナ
ヘツドの第２の実施例の概略構成図、第６図は従
来の自走式スキヤナヘツドの概略構成図である。 １１……黒板、１５……イメージセンサ、１５
ａ……フオトエレメント。 FIG. 1 is a schematic diagram of a first embodiment of a self-propelled scanner head according to the present invention, and FIG. 2 is a schematic diagram of an electronic blackboard to which the self-propelled scanner head of FIG. 1 is applied.
Figure 3 is a schematic front view of the scanner head in Figure 1;
FIG. 4 is a diagram showing an example of the configuration of the image sensor in FIG. 1, FIG. 5 is a schematic configuration diagram of a second embodiment of the self-propelled scanner head according to the present invention, and FIG. 1 is a schematic configuration diagram of a type scanner head. 11...Blackboard, 15...Image sensor, 15
a...Photo element.