Compact ranging control for camera - has IR ranging beam with ranging angle linked to objective setting control

摘要

A compact ranging system for a photographic or kinematographic camera has an IR beam generated by an IR source (16) and directed onto the object (18) by altering the angle of the beam (13). The reflected light is monitored by a detector (21) inside the camera, with the focus of the camera objective (22) linked to the angle control of the ranging beam. A direct action ranging control is obtained. The location is acehived by coincidence between the marking (33) of the illuminated field from the beam reflected by mirrors(46,44) and the detector (21); the latter is connected to a display unit (40) with three illuminated units.