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Proceedings Paper

Optical design methods to suppress aberrations which are caused by change of object distance
Author(s): Shunsuke Hase; Masato Shibuya; Kazuhisa Maehara; Mikio Oka; Suezou Nakadate
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Paper Abstract

An object distance range within which fine image can be obtained by focus adjustment is limited since aberrations are caused by change of object distance. We have developed a novel optical design method to suppress variation of coma, astigmatism and field curvature induced by change of object distance. Variation of astigmatism and field curvature can be suppressed by introducing appropriate distortion. Also variation of coma caused by change of object distance can be suppressed by using spherical image surface which pivot is located at the center of exit pupil.

Paper Details

Date Published: 21 September 2011
PDF: 13 pages
Proc. SPIE 8167, Optical Design and Engineering IV, 81670Y (21 September 2011); doi: 10.1117/12.896762
Show Author Affiliations
Shunsuke Hase, Tokyo Polytechnic Univ. (Japan)
Masato Shibuya, Tokyo Polytechnic Univ. (Japan)
Kazuhisa Maehara, Tokyo Polytechnic Univ. (Japan)
Mikio Oka, Tokyo Polytechnic Univ. (Japan)
Suezou Nakadate, Tokyo Polytechnic Univ. (Japan)

Published in SPIE Proceedings Vol. 8167:
Optical Design and Engineering IV
Jean-Luc M. Tissot; Laurent Mazuray; Rolf Wartmann; Jeffrey M. Raynor; Andrew Wood, Editor(s)

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