Display device

Details Display device Display device

1976-08-18

1979-01-09

Engle, Samuel W.

Card, picture, or sign exhibiting

Display device with gas or liquid movement

With dispersion of fluid medium

362811, G09F 1324

Patent

active

041331249

ABSTRACT:
Diffused light is projected onto a supported thin film in the form of a truncated sphere. The device has a light source disposed at the bottom end of a housing constructed of a light shielding material, and a diffuser plate at the top end of the housing to emit light into the truncated sphere. In one embodiment the plate carries a layer of liquid soap from which a bubble is blown. The housing may also carry a clear glass dome over its top end adjacent which the thin film is supported. Decorative interference patterns of luxuriant colors result.

REFERENCES:
patent: 814889 (1906-03-01), Tacy
patent: 1080340 (1913-12-01), Heissenbuttel
patent: 1856098 (1932-05-01), Green
patent: 2133499 (1938-10-01), Dolan
patent: 3101564 (1963-08-01), Stoessel
patent: 3464132 (1969-09-01), Matisse
patent: 3541705 (1970-11-01), Nelson

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