Title:
【発明の名称】走査式描画装置
Document Type and Number:
Japanese Patent JP2717562
Kind Code:
B2
Abstract:
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.
Inventors:
Ando Hiroaki
Michio Oshima
Yuji Matsui
Takashi Okuyama
Toshitaka Yoshimura
Hidetaka Yamaguchi
Ikeda
Jun Nonaka
Minpaku Miyoshi
Kakimoto Mitsuo
Masatoshi Iwama
Morita Hideyuki
Satoru Tachihara
Rei Morimoto
Akira Ohwaki
Michio Oshima
Yuji Matsui
Takashi Okuyama
Toshitaka Yoshimura
Hidetaka Yamaguchi
Ikeda
Jun Nonaka
Minpaku Miyoshi
Kakimoto Mitsuo
Masatoshi Iwama
Morita Hideyuki
Satoru Tachihara
Rei Morimoto
Akira Ohwaki
Application Number:
JP30745288A
Publication Date:
February 18, 1998
Filing Date:
December 05, 1988
Export Citation:
Assignee:
Asahi Optical Co., Ltd.
International Classes:
B41J2/49; B41J2/44; B43L13/00; H04N1/053; H04N1/113; (IPC1-7): B43L13/00
Domestic Patent References:
| JP5642693A |
Attorney, Agent or Firm:
Tamio Nishiwaki