Polygon scanners revisited

Michael N. Sweeney

doi:10.1117/12.277766

7 July 1997 Polygon scanners revisited

Michael N. Sweeney

Proceedings Volume 3131, Optical Scanning Systems: Design and Applications; (1997) https://doi.org/10.1117/12.277766
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

The demands for increased throughput, pixel density, and format size in the laser beam imaging field continue to challenge opto-mechanical scanning products and the electronics that drive them. The polygon line scanner has superior scan rate and scan efficiency among candidate mechanical scanners but, historically, has had inferior cross- scan and in-scan accuracy. To date, due to cost considerations, these limitations have excluded the polygon scanner from practical use in high resolution, flat field, large format commercial applications. This paper illustrates the tradeoffs among the three most common mechanical scanners; single reflection rotary scanner, resonant galvanometric scanner, and polygon scanner. The purpose of this discussion is to illustrate that the polygon scanner holds the best promise of advancing the state-of-art in reasonable cost, large format, high resolution, flat field imaging once the problems of cross-scan and in-scan errors are reconciled in the design of the system. Also introduced is a polygon scanning system that fulfills the requirements of an advanced flat field, large format line imaging platform.

Citation Download Citation

Michael N. Sweeney "Polygon scanners revisited", Proc. SPIE 3131, Optical Scanning Systems: Design and Applications, (7 July 1997); https://doi.org/10.1117/12.277766

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