Asahi Kogaku Kogyo K.k.

Hiroaki Andon

Akira Morimoto

Satoru Tachihara

Yuji Matsui

Takashi Okuyama

Yasushi Ikeda

Masatoshi Iwama

Hideyuki Morita

Tamihiro Miyoshi

Akira Ohwaki

Hidetaka Yamaguchi

Toshitaka Yoshimura

Michio Ohshima

Mitsuo Kakimoto

Jun Nonoka

A scanning pattern drawing apparatus which scans the surface of a workpiece with a light beam so that a pattern is described on the workpiece with the issued light beam being controlled on the basis of pattern drawing data stored in a pattern memory, wherein the pattern drawing apparatus is able to read many pieces of data in a short period of time even if the frequency of the timing pulses is reduced and which therefore is capable of drawing a precise pattern on a workpiece. A scanning pulse generator produces as scanning pulse in response to a predetermined amount of scanning with the light beam. The scanning pulse is converted to a plurality of resulting timing pulses, and successive parallel outputs of the timing pulses are produced after delaying by a predetermined time. The pattern drawing data is read from the pattern memory in response to the delayed timing pulses.

Scanning pattern drawing apparatus

Growing community of inventors

Tokyo, Japan

Hiroaki Andon