Abstract: To record a composite picture on a film, a projection objective inserted between a movable transparency support and a pair of large-diameter planoconvex field lenses produces an aerial image of a slide, mounted on the support, in the region of the field lenses, preferably just beyond the more rewardly positioned field lens. A varifocal objective disposed to the rear of the field lenses has a stationary front component fully illuminated by the diverging light cones from all the points of the aerial image, this varifocal objective forming part of a zoom camera enabling the magnification ratio between the slide and its image on the camera film to be varied in a range of at least 6:1.
Type:
Grant
Filed:
July 11, 1977
Date of Patent:
April 24, 1979
Assignee:
Comcorps Communication Corps Inc.
Inventors:
Thomas J. Whatley, William M. Drennen, Jr.