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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 25, Iss. 21 — Nov. 1, 1986
  • pp: 3880–3884

Periodic image artifacts from continuous-tone laser scanners

Paul C. Schubert  »View Author Affiliations


Applied Optics, Vol. 25, Issue 21, pp. 3880-3884 (1986)
http://dx.doi.org/10.1364/AO.25.003880


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Abstract

Continuous-tone images produced by mechanically scanned analog modulated laser beams are susceptible to image artifacts in the form of spatially periodic density variations due to machine errors in film transport velocity, raster scan-line placement, and scan-line intensity. The human eye is particularly sensitive to periodic patterns and, in ideal conditions, can detect peak-to-peak density variations as small as ~0.005 for spatial frequencies around 2–5 cycles/deg. The stringent requirements that this implies for the scanner hardware are derived. Particular attention is paid to the rotating polygon-type scanner, since this device currently provides the best combination of speed, image quality, and cost.

© 1986 Optical Society of America

History
Original Manuscript: February 12, 1986
Published: November 1, 1986

Citation
Paul C. Schubert, "Periodic image artifacts from continuous-tone laser scanners," Appl. Opt. 25, 3880-3884 (1986)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-25-21-3880

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