An automatic focusing device for use with a solid-state self-scanned image sensor having a rectangular light detecting area for scanning an object image and converting the same to a video signal, including a focus detecting means, a driver means and a control means. The focus detecting means produces...http://www.google.fr/patents/US4717959?utm_source=gb-gplus-shareBrevet US4717959 - Automatic focusing device for video camera or the like
Automatic focusing device for video camera or the like
