A NEW OPTICAL-DETECTOR FOR A HIGH-SPEED AF CONTROL

This paper presents a new Optical Detector that provides a high-speed AF control. The Optical Detector detects data to control AF, AE and AW E. A conventional Optical Detector detects only one characteristic dat a in a field, however, the new OPD detects several characteristic data in a field. Therefore this new Optical Detector can execute high spee d detection for AF control. The new Optical Detector implements above function by switching filter coefficient every line.