Computer system was used in preparation of this thesis to control laser scaned before projected several characters on the blackground, that can be project the continuous word. Thus it had the most useful for promoted the goods. This projector has the small size, it can easily move to any location. This thesis made projector for projects the word by laser diode applied. It has each part that is mechanical part, 8-laser beam producted part, microcontroled part, and used program part. It can be projected 8 character per one scaned and can controled its products.
By
Phanu Katekaew
Udom Phuhongpechara
