Abstract: Apparatus for producing a color image signal having first and second color components, comprises an image sensor having a regular array of image sensing elements with a regular array of first and second colored filter elements registered thereon for producing a sampled color image signal having first and second color components, a lens for forming a color image on the image sensor, an optical device for displacing the first color component of the image with respect to the second color component by an amount equal to an integral number of image sensing elements such that neighboring image sensing elements having first and second colored filter elements sample the same portion of the image, and a delay device for synchronizing the color components of the image by delaying the first color component with respect to the second color component of the sampled color image signal produced by the image sensor by an integral number of image sensing element sample periods corresponding to the displacement of the first co

Abstract: A film gate for image projection apparatus provides improved structure for directing cooling air across the surfaces of supported film. The outlets of the cooling air conduits are located adjacent edges of supported film and configured and oriented to create Coanda effect attachment of their issuing air streams to the film surfaces.

Abstract: A color imaging device is comprised of means for sensing radiation comprising a planar array of charge-handling semiconductor photosensors, preferably at least one of the photosensors having a radiation sensing area with at least one dimension less than about 100 microns, and superimposed thereon, filter means for controlling access of radiation to the sensing means. The filter means is in micro-registration with the array of photosensors and comprises a transparent mordant layer with a plurality of radiation intercepting means defining a planar array of filter elements. The filter area of each intercepting means contains at least one mordantable dye which absorbs radiation in at least one portion of the spectrum and transmits radiation in at least one other portion of the spectrum. The color imaging device comprises an interlaid pattern having at least two sets of intercepting means, the first set having a different radiation absorption and transmission characteristic from that of the second set.

Abstract: A color imaging device is comprised of means for sensing radiation comprising a planar array of charge-handling semiconductor photosensors, preferably at least one of the photosensors having a radiation sensing area with at least one dimension less than about 100 microns, and superimposed thereon, filter means for controlling access of radiation to the sensing means. The filter means is in micro-registration with the array of photosensors and comprises a transparent mordant layer with a plurality of radiation intercepting means defining a planar array of filter elements. The filter area of each intercepting means contains at least one mordantable dye which absorbs radiation in at least one portion of the spectrum and transmits radiation in at least one other portion of the spectrum. The color imaging device comprises an interlaid pattern having at least two sets of intercepting means, the first set having a different radiation absorption and transmission characteristic from that of the second set.

Abstract: A projection screen of improved aesthetic quality. The screen comprises a plurality of rectilinear rows of precisely contoured optical microelements each adapted to redistribute substantially all of the incident image flux through a predefined audience angle with uniform luminance. The microelements are formed in a surface of a work piece by applying an electrical signal of predefined waveform but of random frequency to the input of the cutting stylus of a sound recording head which moves relative to the work piece in a series of parallel traverses. The electrical signal is recorded on a memory element which moves with the work piece past a stationary pickup head as each row is cut. Because the same signal from the memory element is used to cut each row, an identical phase relationship is maintained between the microelements in adjacent rows.

Abstract: Devices for redistributing incident radiation in a prescribed manner. Such devices comprise a multitude of contiguous optical microelements, each of such microelements being contoured and oriented to redistribute incident radiation, emanating from an intended irradiating source, only throughout an angular field just large enough to encompass a predefined region wherein the redistributed radiation has particular utility. Moreover, the contour and orientation of each microelement is such as to produce substantially uniform radiance throughout such predefined region of utility, and to redirect extraneous or undesirable radiation incident thereon away from said predefined region. The radiation-redistributive devices of the invention are particularly useful as front or rear projection screens, lighting reflectors or refractors, illumination aids for photographic prints, traffic signs, advertisements, etc.