发明名称 Photometric device
摘要 A photometric device in which the photographic field is divided into a plurality of photometric regions, photometric outputs are obtained from each region, the difference between the maximum and minimum values among the photometric outputs is compared with the latitude of the film being used, and one of a highlight reference exposure, average exposure and shadow exposure is selected according to the results of the comparison operation. Accordingly, the available latitude of the film being used is employed maximally.
申请公布号 US4527881(A) 申请公布日期 1985.07.09
申请号 US19840626076 申请日期 1984.06.29
申请人 ASAHI KOGAKU KOGYO KABUSHIKI KAISHA 发明人 SUGAWARA, SABURO
分类号 G01J1/44;G01J1/42;G03B7/099;G03B7/24;G03B7/28;(IPC1-7):G03B7/28;G03B7/08 主分类号 G01J1/44
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