Optical prism display device

Details Optical prism display device Optical prism display device

1987-11-16

1989-12-12

Mancene, Gene

Card, picture, or sign exhibiting

Changing exhibitor

Variable reading stationary exhibitor

350286, G09F 1914

Patent

active

048858560

ABSTRACT:
A novelty or advertising display device is disclosed which has a base optical prism with polished surfaces on clear acrylic material with a top surface spaced above a bottom surface and a slanted viewing front face between them together with messages printed on the prism top and bottom surfaces or alternatively on a substrate sheet captured at the bottom surface with the messages so located in either instance, that some messages appear directly and in appearing and disappearing mirror image and other messages appear and disappear from view to a person moving relative to the device resting upon a table or countertop so as to draw attention to the display.

REFERENCES:
patent: 1933763 (1933-11-01), Russell
patent: 2539654 (1951-01-01), Barnes
patent: 3364603 (1968-01-01), Tate, Jr.
patent: 4268985 (1981-05-01), Lecznar
patent: 4277139 (1981-07-01), Cox
patent: 4623225 (1986-11-01), Forkner
Rohm and Haas Company Reprint from "DESIGN" entitled Parts That Glow, A. M. Blumenfeld and S. E. Jones, pp. 2-11, copywright 1959.

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