Ccd image pickup device

Abstract

Abstract PURPOSE:To make it possible to obtain an electronic shutter function having an arbitrary shutter speed, by using the CCD having the self-scanning function and the photoelectric conversion function as the image sensor in the image pickup device and by varying the charge storage time. CONSTITUTION:Electric charge corresponding to the light quantity of the image pickup light is stored in respective light receiving elements of CCD1 while overflow drain gate clock signal OFDG and sensor gate clock signal SG are logical 0 and logical 1 respectively, and electric charge stored respective light receiving elements of CCD1 is abandoned to respective overflow drains of the CCD while overflow drain gate clock signal OFDG is logical 1. Since the duty ratio of overflow drain gate clock signal OFDG can be changed arbitrarily by adjusting the resistance of variable resistor 11 connected to clock signal generator 10, the charge storage time for light receiving part, namely, the shutter speed can be changed arbitrarily.

Inventors

• 👤 Seisuke Yamanaka

Bibliographic Details