TY - JOUR AU1 - Sugiura, Norio AB - An auto focus video camera system using a bagtype lens was developed. The bagtype lens was formed by pasting two plastic films on a ling spacer and by filling with liquid. Its focus could be controlled quite freely by changing the volume of liquid filled. Focus control signal was obtained by differentiating the CCD video signal. A simple object was brought into the focus automatically within about 20 seconds in this system. TI - Auto-focus video camera system with bag-type lens JF - Proceedings of SPIE DO - 10.1117/12.23988 DA - 1991-04-01 UR - https://www.deepdyve.com/lp/spie/auto-focus-video-camera-system-with-bag-type-lens-cxm3wWT0U8 SP - 442 EP - 446 VL - 1358 IS - 1 DP - DeepDyve ER -