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US Patent 6,296,900
October 2, 2001
Method of making hidden image game
piece
Abstract
A hidden image game piece and a method by which a
hidden image game piece is produced.
A first pattern of colored ink is deposited on a transparent or
highly translucent substrate at 110-180 density, forming the image
which is to be hidden. Then a second pattern of colored ink, of
a different color than first pattern's ink, is deposited upon the
substrate on top of the first pattern, at 90-170 density. When the
game piece is flooded with additive light of the same color as the
second pattern's ink, the previously concealed image, composed of
the first pattern's ink, becomes perceptible. Because a transparent
or highly translucent substrate is used for the game piece, and
because the density of the ink application is controlled within
specific ranges, this game piece may be used with a computer monitor,
or with other low-intensity sources of additive light.
Assignee:
Global Commerce Group, LLC
Appl. No.:
437254
Filed: November
10, 1999
Current U.S. Class:
427/145;
101/490; 427/261; 427/265; 428/213; 428/215; 428/216
Intern'l Class:
B05D 005/06; B05D 001/36; B32B 007/02
Field of Search:
427/145,261,265 428/213,215,216 101/490
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