Share Email Print
cover

Proceedings Paper

Vignetting and the scan duty cycle of dual-beam scanning field by polygon scanners
Author(s): Yixin Zhang; Linghua Chen
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

This paper restricts to the study of the effect of vignetting of dual beam scanning of polygonal scanners. The scanning of dual beam scanning field of a polygon scanner is not symmetric around any points or axes in the scanning system when the incident ray has an incident angle (theta) z. Therefore, in general, a symmetrical scan field distribution cannot be expected. In this paper, some fundamental aspects of the structure of the scan field, such as the effective scanning height of polygon, effect of vignetting and the scan duty cycle in y' direction are considered. The vignetting effect in z' directions are also analyzed and the condition of the vignetting free is given. From discussion, we can conclude that to educe the processing area of polygon facet, the condition of (theta) y < arcsin(RF/(chi) 0) is needed.

Paper Details

Date Published: 21 December 1999
PDF: 7 pages
Proc. SPIE 3963, Color Imaging: Device-Independent Color, Color Hardcopy, and Graphic Arts V, (21 December 1999); doi: 10.1117/12.373436
Show Author Affiliations
Yixin Zhang, Wuxi Univ. of Light Industry (China)
Linghua Chen, Wuxi Univ. of Light Industry (China)


Published in SPIE Proceedings Vol. 3963:
Color Imaging: Device-Independent Color, Color Hardcopy, and Graphic Arts V
Reiner Eschbach; Gabriel G. Marcu, Editor(s)

© SPIE. Terms of Use
Back to Top