Electronic still camera

Abstract

Abstract PURPOSE:To allow frame picture processing even by using a normal interline shape CCD by using both mechanical shutter and electronic shutter. CONSTITUTION:When a start signal enters a CPU10 from a release 11, the CPU10 controls the voltage value which impresses on an overflow control gate OFCG of a CCD6, and accumulates the charge which occurs at the receiving light part for a constant time. When the automatic exposure control mode completes and transition to the picture processing mode is executed, the CPU10 gives a command signal to a shutter control circuit 13. Thus, a mechanical shutter 5 begins to close gradually. The CPU10 gives the control signal to a cumulative time control circuit 7, and decides the impressing time of the voltage which impresses the OFCG. When the voltage is impressed, the receiving light part generates the charge in accordance with the amount of receiving light from an object 4 to be photographed and accumulates the charge.

Inventors

• 👤 Yoshitaka Oota
• 👤 太田　桂孝
• 👤 Kazuo Shiozawa
• 👤 和夫 塩澤

Bibliographic Details