16 September 1980 Computer-Simulation Analysis Of Ghost Images In Photographic Objectives
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Proceedings Volume 0237, 1980 International Lens Design Conference; (1980) https://doi.org/10.1117/12.959121
Event: 1980 International Lens Design Conference, 1980, Oakland, United States
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.
© (1980) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tadashi Kojima, Tadashi Kojima, Takashi Matsumaru, Takashi Matsumaru, Makoto Banno, Makoto Banno, } "Computer-Simulation Analysis Of Ghost Images In Photographic Objectives", Proc. SPIE 0237, 1980 International Lens Design Conference, (16 September 1980); doi: 10.1117/12.959121; https://doi.org/10.1117/12.959121


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