Camera with shutter actuated by piezoelectric element and flash light emitting means,申请号US19880156902-传众专利搜索

Camera with shutter actuated by piezoelectric element and flash light emitting means

申请公布号：US4799078(A)

申请号：US19880156902

申请日期：1988.02.17

申请公布日期：1989.01.17

申请人：

MINOLTA CAMERA KABUSHIKI KAISHA

发明人：HAYAMA, KOH

分类号：G03B7/16;G03B7/26;G03B9/10;G03B9/70;G03B15/05;(IPC1-7):G03B7/26;G03B17/38

主分类号：G03B7/16

摘要：A camera with a flash light emitting element and a piezoelectric element for actuating a shutter wherein successive rapid photographing is enabled. The camera comprises a single main capacitor, and a first voltage detecting means for detecting a first charged voltage of the capacitor required to drive a piezoelectric actuator element for the shutter of the camera, and a second voltage detecting means for detecting a higher second charged voltage of the capacitor required to drive the piezoelectric element and cause a flash light emitting means to emit light. In response to an output of a light measuring means, the first voltage detecting means is selected when the brightness of the object is higher than a predetermined brightness, and the second voltage detecting means is selected when the brightness of the object is lower than the predetermined brightness.