Device for detecting and controlling the focusing of a camera

摘要

The device consists of a diaphragm 4 placed in the plane 3 of the image or in a conjugate optical plane so as to transmit to at least two downstream detectors 5, 6 two respective light beams coming from the object 2, which are transmitted by two different parts of the objective lens 1 and correspond to one part of the image. Application to photographic apparatus and cameras. <IMAGE>