New Automatic Focusing System for Video Cameras

Video cameras can be considered as a kind of substi tute for the human eye. They have a wide range of applications and as such, are in great demand. Advances in IC technology have improved video camera performance to the extent that it can rival that of the human eye. Yet, for even greater popularization of video cameras, improvement of performance and function is essential. The most important improvement in this area has been the development of a focusing system which is automatic. However, the considerable size of current automatic focusing systems has proved to be a major factor hindering the production of more compact models and, hence, their usability.