| 摘要 |
<p>A digital auto focus system includes first and second detector arrays which receive first and second detection images of an object. The detection images are displaced by a number n of detectors depending upon the distance between the object and the detector arrays. The output signals of the detector arrays are processed to provide a signal indicative of the number n. This signal may be used, for example, to control the position of a lens in a photographic system.</p> |
