Latent effects projection system

Details Latent effects projection system Latent effects projection system

2006-01-17

2006-01-17

Dowling, William C. (Department: 2851)

Optics: image projectors

Polarizer or interference filter

C359S506000

Reexamination Certificate

active

06986580

ABSTRACT:
Latent effects projection systems that allow a latent effects projector to be used in connection with various materials, such as wall pieces, floor tiles, signage, hangings, and the like; use reflective polarizers having various looks and/or which allow for the development of different color palettes; which are relatively insensitive to heat; and/or use plural retarders to generate relatively more saturated colors and/or latent colors that are substantially repeatable.

REFERENCES:
patent: 4928123 (1990-05-01), Takafuji
patent: 5793470 (1998-08-01), Haseltine et al.
patent: 5929946 (1999-07-01), Sharp et al.
patent: 5993004 (1999-11-01), Moseley et al.
patent: 6301044 (2001-10-01), Huber et al.
patent: 2003/0128427 (2003-07-01), Kalmanash et al.
patent: 2003/0137734 (2003-07-01), Damask
patent: 2004/0001255 (2004-01-01), Fratello

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