Projector with projection lens having a zoom function

Details Projector with projection lens having a zoom function Projector with projection lens having a zoom function

2006-07-04

2006-07-04

Perkey, W. B. (Department: 2851)

Optics: image projectors

Lens support

Lens position adjustable

C353S069000, C353S121000, C345S088000, C345S098000, C345S600000, C345S690000, C349S005000

Reexamination Certificate

active

07070286

ABSTRACT:
A projector in accordance with the invention includes a projection lens having a zoom function that forms a projected image corresponding to an image signal on a screen, a zoom state detection section that detects a zoom state of the projection lens, and an uneven color correction section that performs uneven color correction on the image signal based on a detected zoom state.

REFERENCES:
patent: 6195209 (2001-02-01), Kreitzer et al.
patent: 6431711 (2002-08-01), Pinhanez
patent: 6450647 (2002-09-01), Takeuchi
patent: 6704008 (2004-03-01), Naito et al.
patent: 6756991 (2004-06-01), Koyama
patent: A-4-240979 (1992-08-01), None
patent: 08-289191 (1996-11-01), None
patent: 09-318909 (1997-12-01), None
patent: A-10-171045 (1998-06-01), None
patent: 11-069264 (1999-03-01), None

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