SOLID-STATE IMAGE PICKUP DEVICE

摘要

PURPOSE:To attain high resolution and miniaturization by providing a piezoelectric linear actuator using a sinusoidal wave signal to drive a transparent parallel plate provided between an object and a solid-state image pickup element so as to move the parallel plate horizontally and vertically for each peak of a half cycle by 45 deg.. CONSTITUTION:A radiated light from an object is collected 2 and projected to a two-dimension solid-state image pickup element 5 via a parallel plate 11. The parallel plate 11 is supported to a bimorph type piezoelectric actuator 12 via a rotary shaft 10. The parallel plate 11 while being controlled by a control section 13 is moved by 45 deg. in horizontal/vertical direction for each half cycle of a sinusoidal wave signal by the actuator 12 and the image pickup element 5 applies storage for the peak area period of the sinusoidal wave signal and readout in other period. This is equivalent to the state that photodetection sections 1-9 of each picture element of the image pickup element 5 are moved to dead bands 1'-9' in an oblique direction of 45 deg.. The value of the areas 1-9, 1'-9' detected by the image pickup element 5 is subject to picture processing 14 and displayed (4). Thus, high resolution is obtained without increasing number of picture elements to attain miniaturization.