Camera system with small fast dimming mechanism

Abstract

This paper describes a camera system with a small fast dimming mechanism and a camera. A developed camera system has two features. The small dimming mechanism is fast and sequential dimming using two polarizing filters. One polarizing filter is fixed, and another polarizing filter is rotating fast. The camera system automatically determines blown out highlights in token images by the camera. The camera system sequentially outputs a light image without the blown out highlights. Entered light to the camera system is not polarized light but natural light. The developed camera system has some characteristics below. The camera system can control frame rate to take a moving object without relation to dimming capability. The camera system can control an iris to take a deep or shallow image with depth of field without relation to dimming capability. The camera system can control dimming step with the frame rate. I checked performance of the camera system to take some object images with the blown out highlights, and output image by the camera system using the developed camera system.