Beam splitter for multibeam A/O modulators and printer systems

Details Beam splitter for multibeam A/O modulators and printer systems Beam splitter for multibeam A/O modulators and printer systems

1987-03-30

1988-03-22

Goldberg, E. A.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

346160, 358296, G01D 942, G01D 1514, H04N 121

Patent

active

047332522

ABSTRACT:
A scanning system with unpolarized laser, a birefringent beam splitter to split the unpolarized beam into dual orthogonally polarized beams, a polarization insensitive unitary dual beam modulator for separately modulating the beams in accordance with discrete image signal inputs, and a control for operating the modulator at optimum acoustic power levels.
In an alternate embodiment, a quarter wave plate is inserted in the optical path between laser and beam splitter.

REFERENCES:
patent: 3943369 (1976-03-01), Saeva
patent: 4345258 (1982-08-01), Tsai
patent: 4348079 (1982-09-01), Johnson
patent: 4445126 (1984-04-01), Tsukada
patent: 4492436 (1985-01-01), Bergmann
patent: 4506275 (1985-03-01), Maeda
patent: 4517608 (1985-05-01), Maeda et al.
patent: 4554561 (1985-11-01), Daniele
patent: 4565426 (1986-01-01), Cullen
patent: 4578689 (1986-03-01), Spencer et al.
patent: 4686542 (1987-08-01), Yip

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