AUTOMATIC FOCUSING DEVICE

摘要

PURPOSE:To exactly attain an automatic focusing operation even when an object is in a high luminance or not by detecting a direction in which a pint is matched based on pint information. CONSTITUTION:A high luminance component detecting circuit 4 prepares a high luminance detecting component VFH, and a focal voltage detecting circuit 5 prepares a focal voltage VFN. An object discrimination signal detecting circuit 6 prepares a signal being a judging material for judging whether or not the object is in the high luminance by a video signal VIN. A switching control signal generating circuit 7 discriminates whether or not the object is the high luminance based on the output signal from the discrimination signal detecting circuit 6, and outputs a switch control signal SVF to a changeover switch 8. Then, the two kinds of pint information of the VFH and the VFN are selected by the switch 8, and transmitted to a control circuit 9. The control circuit 9 controls the movement of a lens 1 based on the selected pint information.