Boots – shoes – and leggings
Patent
1986-11-19
1990-01-30
Harkcom, Gary V.
Boots, shoes, and leggings
40362, G06K 1500
Patent
active
048978027
ABSTRACT:
A display system having a single-frame transparency which contains four independent images, each of the images having spaced apart groups of pixels interlaced with the groups of pixels from each of the other images, each of the images being selectable for projection by a movable grid mask, is provided. A method for preparing and displaying four images from a single-frame transparency is also disclosed. The single-free transparency having interlaced groups of pixels from four individual images is formed from four individual transparencies having a copy pattern formed thereon, the copy pattern being divided into spaced apart square shaped groups of pixels defining a matrix of translucent optic segments. The mosaic transparency is mounted in a back lighted box and then overlaid with a grid mask having a plurality of grid apertures in registered alignment with the optic segments representing one of the images and the grid lines of the grid mask blocking projection of light through the other optic segments from each of the other images. The grid mask is then sequentially displaced in a square pattern to sequentially register the grid apertures with the optic segments of each of the other images, and thereby sequentially displaying each of the four images provided on the single-frame transparency.
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Atkinson William B.
Bronaugh William R.
Harkcom Gary V.
Hassmann John
Nguyen Phu K.
Schooley Vern
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