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Proceedings Paper

Relationship between jitter and deformation of mirrors
Author(s): Hiroshi Horikawa; Masayuki Miura; Toshiya Uchida
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Paper Abstract

The study investigates the relationship between the change in the surface of the mirror and jitter when one of the causes of jitter is due to deformation of the polygonal mirror surface by the centrifugal force created by high-speed spinning of the polygonal mirror. Finite element analysis is used to obtain the deformation pattern of the polygonal mirror by centrifugal force under various constraints governing the attachment of the polygonal mirror to the spindle motor. It is found that the amount of the deformation of mirrors and the deformation patterns greatly depend on the bolting diameter and the number of bolting positions; in particular, when the uniform constraint is applied, there is an R value which describes the minimum deformation.

Paper Details

Date Published: 1 February 1991
PDF: 13 pages
Proc. SPIE 1454, Beam Deflection and Scanning Technologies, (1 February 1991); doi: 10.1117/12.28054
Show Author Affiliations
Hiroshi Horikawa, Copal Electronics Co. Ltd. (Japan)
Masayuki Miura, Copal Electronics Co. Ltd. (Japan)
Toshiya Uchida, Copal Electronics Co. Ltd. (Japan)


Published in SPIE Proceedings Vol. 1454:
Beam Deflection and Scanning Technologies
Leo Beiser; Gerald F. Marshall, Editor(s)

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