Correcting apparatus for projection system

Details Correcting apparatus for projection system Correcting apparatus for projection system

2008-03-25

2008-03-25

Sever, Andrew T (Department: 2851)

Optics: image projectors

Light shield, mask, hood, or diaphragm

C353S100000, C359S738000

Reexamination Certificate

active

11205997

ABSTRACT:
The present invention provides a correcting apparatus for correcting images projected from a projection system. The correcting apparatus includes a correcting module and a projection lens. The correcting module shields a light signal for producing a corrected light signal. The projection lens receives the corrected light signal for producing an image light signal. The correcting module is disposed on a first outer circumference at one end of the projection lens.

REFERENCES:
patent: 5537166 (1996-07-01), Keelan et al.
patent: 7234821 (2007-06-01), Wang
patent: 2004/0080723 (2004-04-01), Inamoto
patent: 2005/0018150 (2005-01-01), Kamijima et al.
patent: 2006/0092496 (2006-05-01), Chen et al.

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