Laser scanning apparatus having a scanning beam and a reference

Details Laser scanning apparatus having a scanning beam and a reference Laser scanning apparatus having a scanning beam and a reference

1991-04-25

1993-09-21

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

2502011, H01J 314

Patent

active

052471748

ABSTRACT:
Laser scanning apparatus comprising stationary optical laser source apparatus for producing a scanning beam and a reference beam, beam delivery apparatus for delivering the scanning beam onto a surface to be scanned, beam position detector apparatus for measuring the position of the scanning beam by sensing the position of the reference beam and fiber optic apparatus for delivering the scanning beam and the reference beam from the optical laser source apparatus to the beam delivery apparatus.

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patent: 4746180 (1988-05-01), Deisler et al.
patent: 4834520 (1989-05-01), Klainman
patent: 4866464 (1989-09-01), Straayer
patent: 4931637 (1990-06-01), Succari et al.
S. Bousky and L. Teeple, "Laser Recording Performance with Spatial Error Compensation". SPIE, vol. 53, 1973.
D. P. Jablonowski and J. Raamot, "Beam Deflection at High Accuracy and Precision", SPIE vol. 84, 1976.
M. R. Smith, R. H. Burns, and R. C. Tsai, "Ultrahigh Resolution Graphic Data Terminal", SPIE vol. 200, 1979.
F. Bestenreiner et al., "Visibility and Correction of Periodic Interference Structures in Line-by-Line Recorded Images", J. of Appl. Phot. Eng. vol. 2, 1976.

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