Judith Karelitz

US Patent:

46538437, Mar 31, 1987

Filed:

Sep 13, 1985

Appl. No.:

6/776006

Inventors:

Judith Karelitz - New York NY

International Classification:

G02B 2300

US Classification:

350 42

Abstract:

An amusement device for producing a variety of unusual changing images and colors comprising a tube having an interior reflecting surface extending substantially the entire length thereof. An object case at one end of the member contains one or more birefringent objects of varying size and shape. An eye piece is disposed at the other end of the chamber. Light polarizers are disposed on both sides of the birefringent objects. At least one of the light polarizers is dimensioned so that it is free to rotate within the tube when the tube is tapped, shaken or turned.