Hidden image game piece

Details Hidden image game piece Hidden image game piece

1998-05-20

1999-11-16

Fridie, Jr., Willmon

Printed matter

Having revealable concealed information, fraud preventer or...

Utilizing electromagnetic radiation

283 95, 283114, B44F 110

Patent

active

059843675

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.

REFERENCES:
patent: 4360548 (1982-11-01), Skees et al.
patent: 5401032 (1995-03-01), Barnhart

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