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DIRECT IMAGE VIEWER, SPECIFICATION FOR
of rear projection diffusion screens, and the achievement of high magnification viewing qualities ... CIA-RDP78604747A001100010003-6 the viewer, or the diffraction characteristics of the gratings will produce a rainbow of images ... intensity lamps and the small f/number projection lens at the high magnification. Approved For Release ...
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DIRECT IMAGE VIEWER, SPECIFICATION FOR
tion of performance limitations imposed by the use of rear projection diffusion screens, ... of the gratings will produce a rainbow of images between matrix units (exit pupil images). 3.4 Technical Details ... Compensation is pro- vided in the condensers, high intensity lamps and the small f/number projection lens ...