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Proceedings Paper

Computer-Simulation Analysis Of Ghost Images In Photographic Objectives
Author(s): Tadashi Kojima; Takashi Matsumaru; Makoto Banno
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Paper Abstract

The results of investigations about ghost images caused by internal reflections in photographic objectives will be described as follows. (1) Ghost images in photographic objectives are classified according to their generation processes. (2) The analysis method of ghost images based on computer simulation is briefly explained. (3) The comparisons between real ghost images recorded on a photographic film and the results of computer simulation are examined. (4) Relations between objective types and the generation processes of ghost images are discussed about some typical objective types. (5) The methods to reduce ghost images are investigated. Finally, some ideas to reduce ghost images in the designing stage for photographic objectives referring to the above results are proposed.

Paper Details

Date Published: 16 September 1980
PDF: 8 pages
Proc. SPIE 0237, 1980 International Lens Design Conference, (16 September 1980); doi: 10.1117/12.959121
Show Author Affiliations
Tadashi Kojima, Konishiroku Photo Ind. Co., Ltd. (Japan)
Takashi Matsumaru, Konishiroku Photo Ind. Co., Ltd. (Japan)
Makoto Banno, Konishiroku Photo Ind. Co., Ltd. (Japan)

Published in SPIE Proceedings Vol. 0237:
1980 International Lens Design Conference
Robert E. Fischer, Editor(s)

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