Method and apparatus for beam displacement in a light beam scann

Details Method and apparatus for beam displacement in a light beam scann Method and apparatus for beam displacement in a light beam scann

1990-03-09

1991-09-17

Reinhart, Mark J.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

346108, G01D 942, H04N 121

Patent

active

050498975

ABSTRACT:
A method and apparatus is provided for line scanning a beam receiving member, wherein a scanning beam is angularly or laterally displaced to compensate for potential scan line spacing error. The beam is displaced according to error arising from variation (flutter) in the relative motion of the beam and the beam receiving member, or according to error arising from movement of the receiving member while the scanning beam travels to a start of scan position, or both. Embodiments of beam displacement means include a row-addressable light valve array and an area-addressable light valve array.

REFERENCES:
patent: 4321700 (1982-03-01), Russell
patent: 4441126 (1984-04-01), Greening et al.
patent: 4805012 (1989-02-01), Agnostinelli et al.
Laser Scanning for Electronic Printing Urbach et al, Proc. of the IEEE, vol. 70, No. 6, Jun. 1982, pp., 597-618.
Product Brochure for Sight-Mod.TM. Programmable Data Display System (undated).
Semetex News Release, Mar. 28, 1986.
Useful Optical Data on Sight-Mod.TM. Chip (undated).

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