发明名称 Compact camera with automatic focal length dependent exposure adjustments
摘要 A compact camera has a variable focal length photographing optical system, a multisegment photometric system that is separate from the photographing optical system, each segment outputting a brightness level, and a controller that determines an exposure value for exposing a film by using weighting coefficients to calculate a weighted average of the brightness levels outputted by the photometric system. The weighting coefficients vary according to the focal length of the photographing optical system.
申请公布号 US5440369(A) 申请公布日期 1995.08.08
申请号 US19930159207 申请日期 1993.11.30
申请人 ASAHI KOGAKUOGYO KABUSHIKI KAISHA 发明人 TABATA, YASUSHI;NUMAKO, NORIO;KOSAKO, KOSEI
分类号 G03B7/099;G03B7/20;(IPC1-7):G03B7/08 主分类号 G03B7/099
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