| 摘要 |
PROBLEM TO BE SOLVED: To make a focus detector usable for a single lens reflex camera and also for a lens shutter system camera by using an integral control means in common in the case of independently performing an integral output by every photodetecting means, and also in the case of performing the integral output by a pair of photodetecting means. SOLUTION: Outputs of monitor photodetectors M1 to M5 by a monitor sensor 23A are inputted to an integral control circuit 25A. Outputs of monitor photodetectors M6 to M10 by a monitor sensor 23A are inputted to an integral control circuit 25B, and all the outputs of the monitor photodetectors M11 to M15 by a monitor sensor 23B are inputted to the integral control circuit 25B. Besides, all the outputs of the monitor photodetectors M16 to M18 by the monitor sensor 23C are inputted to an integral control circuit 25C. And, the monitor sensors 23A and 23C and the integral control circuits 25A and 25C are used in common, in the case of independently performing the integral control of each line sensor 13A to 13C and also in the case of using the pair of line sensors 13A and 13C. |
