Opto-mechanical filter for blending of images from a digital...

Details Opto-mechanical filter for blending of images from a digital... Opto-mechanical filter for blending of images from a digital...

2007-11-20

2007-11-20

Dowling, William C. (Department: 2851)

Optics: image projectors

Miscellaneous

Reexamination Certificate

active

11189836

ABSTRACT:
A filter mounting apparatus for use with an optical filter placed between a projector lens and screen. The filter mounting apparatus comprises a metallic disk connected to the projector lens, and an assembly magnetically connected to the metallic disk for mounting the optical filter a predetermined distance from the projector lens.

REFERENCES:
patent: 6017123 (2000-01-01), Bleha et al.
patent: 6531230 (2003-03-01), Weber et al.
patent: 7019917 (2006-03-01), Sato et al.
patent: 2005/0151933 (2005-07-01), Tsai et al.
patent: 2006/0077358 (2006-04-01), Wang
patent: 2006/0109425 (2006-05-01), Liang et al.
patent: 2007/0064203 (2007-03-01), Sawai

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