Smoothing device for scan lines of a photographed CRT display
AssigneeNise, Inc.
InventorsRoelof R. Jonker, Dennis A. Webb
Life of this patent
Estimating the term…
Abstract
A device for mechanically moving the instantaneous image spot of a cathode ray tube at right angles to the scan direction with respect to a photographic film on which the total image is recorded by vibrating a portion of the imaging system so that the spot moves at a higher relative speed at right angles than at the normal scan direction so that the information on one scan line occupies all, or very nearly all, of the space between the scan lines as they are projected on the film.
Claims28
A device to produce a photograph of an image represented by raster scans of variable intensity light having predetermined widths and predetermined spacing therebetween including:
- a cathode ray tube having a face on which the raster scans of variable intensity light are produced thereacross in a first direction as its output representative of the image;
- photographic means sensitive to the output of said cathode ray tube;
- an imaging system to project the output of said cathode ray tube on said photographic means;
- and
- mechanical means to move the output of said cathode ray tube with respect to said photographic means a distance about equal to the predetermined spacing between the raster scans in a second direction which generally is at right angles to said first direction.
Dependencies are inferred from the claim text.