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US Patent 5,984,367
November 16, 1999
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.:
081795
Filed: May
20, 1998
Current U.S. Class:
283/92;
283/95; 283/114
Intern'l Class:
B44F 001/10
Field of Search:
283/95,114
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