Exposure control apparatus of camera including exposure factor limit value setting means

US5280319A · kind A · utility

Assignee

• Asahi Kogaku Kogyo Kabushiki Kaisha · JP

Inventors

• Osamu Sato · Kawasaki, JP
• Satoshi Nakano · Tokyo, JP
• Isamu Hirai · Tokyo, JP
• Toshiyuki Kitazawa · Tokyo, JP
• Takayuki Sensui · Tokyo, JP
• Masato Yamamoto · Kyoto, JP
• Toshimasa Yamanaka · Tokyo, JP
• Takenao Shishikura · Tokyo, JP
• Akio Takahashi · Hitachiota, JP

Key dates

• Filing date: Apr 15, 1992
• Grant date: Jan 18, 1994
• Expiry date: Apr 15, 2012

Classification

• Technology area (CPC G): Physics
• CPC primary: G03B17/20
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An exposure control apparatus of a camera, in which at least one of a pair of exposure factors that include a shutter speed and a diaphragm value is variable. An exposure factor setting device sets at least one variable exposure factor, while a limit value setting device varies and sets at least one upper and lower limit value of the exposure factor.