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Optical Engineering • Open Access

Practical method for evaluating optical image defects caused by center artifacts
Author(s): Takao Tanabe; Masato Shibuya; Kazuhisa Maehara

Paper Abstract

In modern optical element manufacturing, center artifacts are a common problem. A center artifact is a shape error that is rotationally symmetrical, steep, and localized at the center. These properties cause characteristic image defects different from those caused by ordinary irregularities. However, tolerancing center artifacts has not been fully discussed or properly carried out. We propose a simple mathematical model for center artifacts using normal distribution function as a figure model and showing that this function can be represented by a polynomial including odd-order terms. Our method enables appropriate optical simulation and tolerancing for center artifacts using general optical design software.

Paper Details

Date Published: 21 August 2017
PDF: 9 pages
Opt. Eng. 56(8) 085103 doi: 10.1117/1.OE.56.8.085103
Published in: Optical Engineering Volume 56, Issue 8
Show Author Affiliations
Takao Tanabe, Tokyo Polytechnic Univ. (Japan)
Showa Optronics Co., Ltd. (Japan)
Masato Shibuya, Tokyo Polytechnic Univ. (Japan)
Kazuhisa Maehara, Tokyo Polytechnic Univ. (Japan)

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