Internal drum plotter with multiple focal point holographic opti

Details Internal drum plotter with multiple focal point holographic opti Internal drum plotter with multiple focal point holographic opti

1993-08-17

1996-03-05

Dzierzynski, Paul M.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359216, 359205, 359197, 235457, G02B 532, G02B 2610, G02B 2618, G06K 710

Patent

active

054972523

ABSTRACT:
An internal drum plotter in which a multiple focal point holographic element receives respective modulated light beams, one for each focal point, to focus the light beams on a light sensitive medium on the internal surface of the drum. The holographic element is rotated to trace the modulated light beams in separate, respective lines on the light sensitive medium.

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Technical Report #384, issued Aug. 1978 by Isomat Corp. "Technical Report on Multibeam Laser Scanning".
S. B. Tokes, "Applications of Multi-Beam Acousto-Modulators in Laser-Electrophotographic Printing and Drawing Machines", SPIE Proceedings No. 396, 1983.
B. J. Chang, et al., "Holographic Optical Elements (HOEs)", Advances in Laser Scanning Technology, SPIE Proceedings vol. 299, pp. 157-162, Aug. 1981.
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