The three most common types of autofocus on cameras include contrast detection autofocus, laser autofocus, and phase detection autofocus. (businessinsider.my)
-- laser, phase detection and conventional contrast detection for continuous auto - focus — into one harmonious system that automatically selects the best one depending on the subject, lighting, and range. (pcquest.com)
The reliability of their fabrication method has (literally) far reaching applications for wide field measurements, ensuring the high contrast detection over relatively large sample areas. (sciencedaily.com)