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Proceedings Paper

Development of the software GASO for analysis of beam profile on the laser-beam printer
Author(s): Osamu Yamada; Katsuhiro Nanba
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Paper Abstract

In the optical design of laser beam printers, it is very important to know the spread function of the beam across the photoconductors. With the usual method, however, we cannot determine the spread function directly, but rather we have to infer it from the optical aberration in the system and the shape of the beam assuming no aberrations. The fundamental method to simulate the point spread function has already been described. In it, the pupil function is defined assuming irregular illumination deviation of the wave front. Fraunhofer diffraction is then applied. A thorough investigation of the method has not yet been performed, however. We developed an algorithm based on the above method and created a program which determines the laser distribution over the photoconductors taking into consideration the influence of both optical aberrations and truncation by the optical pupil. Experimental values agree well with the calculated values, confirming the efficiency of the program. With this method and software, evaluation of the influence of the pupil and aberrations in the optical system on an elliptical Gaussian beam have become possible.

Paper Details

Date Published: 29 December 1993
PDF: 5 pages
Proc. SPIE 1987, Recording Systems: High-Resolution Cameras and Recording Devices and Laser Scanning and Recording Systems, (29 December 1993); doi: 10.1117/12.165202
Show Author Affiliations
Osamu Yamada, Minolta Camera Co., Ltd. (Japan)
Katsuhiro Nanba, Minolta Camera Co., Ltd. (Japan)


Published in SPIE Proceedings Vol. 1987:
Recording Systems: High-Resolution Cameras and Recording Devices and Laser Scanning and Recording Systems

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