Display device having magnifying and contracting images

Details Display device having magnifying and contracting images Display device having magnifying and contracting images

1990-11-19

1991-11-12

Lazarus, Ira S.

Illumination

With liquid container

362253, 362269, 362285, 362808, F21V 3300

Patent

active

050652893

ABSTRACT:
A display device includes: a crystal ball fixed on a base formed with plural concave and convex portions on a spherical surface of the crystal ball to respectively form plural concave lens and convex lens on the ball surface when filled with water in the ball, thereby producing magnified and contracted images for a decorative article mounted in the ball as viewed through the concave and convex portions for enhancing decorative interest.

REFERENCES:
patent: 1681040 (1928-08-01), Kemp
patent: 3431409 (1969-03-01), Richter, III et al.
patent: 3694648 (1972-09-01), Yates
patent: 4170035 (1979-10-01), Walker
patent: 4771902 (1988-09-01), Teng

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