Abstract
We analyze aberrations in an optical laser printer system in order to know
how to determine an allowable non-uniformity of the movement of a light spot, how to
determine allowed variation of spot sizes, and how to minimize the influence of
these deviations on technological errors. In this paper, the correction and the
tolerance of distortion are analyzed by using the concept of zonal and global
distortions. The tolerance of field curvature is also obtained from Gaussian beam
properties. In order to reduce the change of the entrance pupil position and to make
a more compact laser printer system the minimum size of the rotator is exactly
derived from the geometry with the introduction of the shift angle of the input
beam.
© 2011 Optical Society of Korea
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