Changing color object

Details Changing color object Changing color object

2005-09-20

2005-09-20

Le, Mark T. (Department: 3617)

Card, picture, or sign exhibiting

Display with special effects

Electromotor operated

Reexamination Certificate

active

06944983

ABSTRACT:
A device displaying a polychromatic effect, comprising a light source a first linear polarizing layer optically coupled to said light source a first bi-refringent layer a second linear polarizing layer a motor coupled to said first linear polarizing layer so that said first linear polarizing layer rotates, varying the polarizing angle between said first linear polarizing layer and said bi-refringent layer.

REFERENCES:
patent: 2018214 (1935-10-01), Land
patent: 2393968 (1946-02-01), Bruchell et al.
patent: 2473857 (1949-06-01), Burchell
patent: 2506134 (1950-05-01), Burchell
patent: 2506135 (1950-05-01), Burchell
patent: 2535781 (1950-12-01), Burchell
patent: 3315391 (1967-04-01), Lane et al.
patent: 3535805 (1970-10-01), Peiperl
patent: 3679888 (1972-07-01), Reiback
patent: 3694054 (1972-09-01), Kirsch
patent: 3762082 (1973-10-01), Mincy
patent: 3793755 (1974-02-01), Gersch et al.
patent: 3841730 (1974-10-01), Karelitz
patent: 3927461 (1975-12-01), Peiperi
patent: 3971928 (1976-07-01), Kirsch et al.
patent: 4742439 (1988-05-01), Choate
patent: 4798448 (1989-01-01), van Raalte
patent: 5748376 (1998-05-01), Lin et al.
patent: 6044196 (2000-03-01), Winston et al.
patent: 6335999 (2002-01-01), Winston et al.
patent: 6362920 (2002-03-01), Hannah
patent: WO 88/05549 (1988-07-01), None

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