Laser exposure apparatus

Details Laser exposure apparatus Laser exposure apparatus

1987-04-01

1989-03-07

LaRoche, Eugene R.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 44, 350356, G02F 111, G02F 103, G11B 700

Patent

active

048100684

ABSTRACT:
A laser exposure system for use in scanning and recording images, the system comprising subdividing the laser beam from the laser source into several parallel traces of laser beams; modulating the laser beams individually in response to the image signals by means of a multi-channel optical modulator; directing the modulated laser beams through a first mirror and a second mirror so as to enable the laser beams from the second mirror to be in parallel with the reference plane with respect to the sub-scanning direction; varying the distance between the modulator and the first mirror; and adjusting the angles of the first and second mirrors to the reference plane so that a possible decline of the laser beams in the subscanning direction is compensated.

REFERENCES:
patent: 4093964 (1978-06-01), Aughton
patent: 4413270 (1983-11-01), Sprague
patent: 4459690 (1984-07-01), Corsover et al.

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