Abstract: An identification camera system for producing an identification type card having a composite image of both a subject and a data bearing card and for producing an encoded film record of the identification card includes a first lens for photographing the subject and a second lens for photographing the data card. The light from the subject and the data card is polarized in orthogonal planes and directed by a beam splitter through image analyzers onto mutually exclusive areas of first and second image planes. Self-developing film of the type marketed by Polaroid Corporation, for example, is located at the first image plane and, after exposure to the optically resolved subject and data card images, is developed to form the identification card, and strip film, e.g.

Abstract: A unicell radiation measuring device having a single electrical output signal that can be correlated with film sensitometric characteristics and scene object luminance patterns to either predict photographic exposures directly, or alternatively, used as an input function for controlling a camera exposure control system. The device consists of an optical system having a single optical element for collecting and directing radiation from a scene onto the surface of a photoelectric transducer element having a spectral sensitivity substantially identical to the photopic visual response curve of the standard photometric observer according to the CIE thereby qualifying it as a photometer. The optical element consists of a central circular planar portion of uniform thickness surrounded by an annular positive lens portion having radially decreasing thickness. Both portions are integrally molded to provide the optical element with a unitary construction that is rotationally symmetric.

Abstract: The invention is a focusing screen with an integral split image rangefinder located substantially away from the geometric center of the focusing screen. Such an arrangement improves photographic image acuity and it encourages better photographic composition.

Abstract: A compact folding camera and viewing device and an apertured flexible mask removably attachable to the viewing device over the eye lens thereof. The mask folds flat within the viewing device in a storage position and when the viewing device is erected to a viewing position the aperture is positioned proximate the exit pupil of the viewing device and is oriented to cause a user to place his eye proximate the exit pupil and sight along the optical axis of the viewing device. The mask is provided with an antireflective face and the aperture is larger than the exit pupil so as not to restrict the field of view through the viewing device.