Abstract: A system for the intermittent immobilization of motion picture images on a continuously moving film strip passing through a film gate. The image path of the system includes a ring-shaped optical element rotatably driven about its central axis. Rotation of this "optical cam" is synchronized with the continuous feed motion of the film strip through the film gate so as to cause the image to be immobilized for the period of the cam's rotation, after which the cycle is repeated. Three fixed optical elements comprising a film gate corrector, an aperture corrector, and a focal plane corrector are interposed in the image path for compensation of optical aberrations caused by the variation of optical cam scan angle and tangential slope over the intercepted area of the optical aperture, and by the compound "Euler" angle changes with optical cam rotation.

Abstract: A color television projection system that optically combines the outputs of three small cathode ray tubes, each projecting an image in one of three primary colors, to produce a full-color image that is not subject to the usual "color matrix" losses experienced by contemporary television receiver units. This system employs a solid optical system, similar to a classical Schmidt system, but modified by having the necessary colored beamsplitters immersed, as part of the fabrication process, within the solid optics near the primary focal plane to serve as the aperture stop for the system, and further modified by having an air separated corrector lens. Additional light energy efficiency, over contemporary techniques, is obtained by having the cathode ray tube faces immersed within the solid optics and optically coupled thereto by an appropriate optical bonding agent.

Abstract: In a missile, a target tracking seeker responsive to a dual spectral range of radiation, having two decentered rotating optical elements to provide a rosette or spiral scanning pattern for a dual detector. Associated electronics operate upon the detector signals to guide the missile to its target.