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AssigneeRaytheon Anschutz GmbH
InventorsHans Baumann, Roger Glag, Manfred Wieland
Estimating the term…
The invention concerns the elimination of the image steadiness error in the projection of films, which consist of individual images. For this purpose, the image steadiness error is detected by a sensor and is compensated for by a device for step size compensation. An apparatus for the measurement of the image position in the projection films which consist of individual images has a sensor for the measurement of the image steadiness error by making use of the perforation. In a device for the correction of an image steadiness error of films which consist of individual images, an optical compensator is arranged before the films as an optical storage medium and/or before the optical photography medium.
An apparatus for measurement of the image position in a projector during the projection of elongate strips of film, wherein each film strip, which has therein individual images, is moved step by step to advance successive image thereof past the projection lens and into registry with the projector's image window, each of the film strips having therethrough adjacent said images longitudinally spaced perforations, and wherein a capacitative differential sensor is arranged in the projector to register with successive perforations in a film strip for effecting the measurement of the image steadiness error.
A device for the correction of an image steadiness error of motion picture films, wherein a film strip having thereon individual images is moved by a projector step by step past a projection lens, and including an optical compensator, comprising at least one transparent glass plate, a lens which can be displaced translatorily (xyl) in a plane perpendicular to the optical axis (Z), or rotary wedges, said compensator being arranged as a device for step size compensation in the imaging ray path before the film strip or before an optical recording medium, respectively, in said projector.
A method for the reduction of the image steadiness error in the projection of elongate film strips by a film projector, wherein each film strip comprises a series of individual images and Is moved step by step past a projection lens to place successive images in registry with an image window, the image steadiness error being detected in the projector by a plurality of spaced optical sensors and being compensated for by a device for step size compensation, and
Dependencies are inferred from the claim text.