Laser exposure apparatus

Details Laser exposure apparatus Laser exposure apparatus

1988-08-03

1989-09-19

LaRoche, Eugene R.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

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

Patent

active

048675423

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 be 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 sub-scanning direction is compensated.

REFERENCES:
patent: 3195405 (1965-07-01), Clark et al.
patent: 4093964 (1978-06-01), Aughton
patent: 4413270 (1983-11-01), Sprague
patent: 4459690 (1984-07-01), Corsover

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