Image input device

Details Image input device Image input device

2007-07-23

2010-06-15

Tran, Sinh (Department: 2622)

Television

Camera, system and detail

Optics

C348S362000, C348S360000

Reexamination Certificate

active

07738031

ABSTRACT:
In an image input device including a multistage aperture (13) which reduces a quantity of light by changing an aperture, and an ND filter (15) which reduces a quantity of light by changing transmittance of passing light, if ghosts tend to occur due to the second light reducing means, the generation of ghosts is effectively avoided. An object determining unit determines whether a strong light source is present on an object image formed by an optical unit (10) for imaging based on luminance distribution on the object image. The multistage aperture (13) and the ND filter (15) are controlled in order to obtain a proper exposure to pickup the object image. If the object determining unit determines which a strong light source is present on the object image, the ND filter (15), which reduces the quantity of light by changing the transmittance of passing light, is used as less as possible, and the multistage aperture (13) is functioned preferentially.

REFERENCES:
patent: 6720995 (2004-04-01), Kaneda et al.
patent: 7450170 (2008-11-01), Terai et al.
patent: 2004/0239796 (2004-12-01), Imai
patent: 2005/0012846 (2005-01-01), Shinohara
patent: 2005/0068638 (2005-03-01), Nuno et al.
patent: 2006/0209192 (2006-09-01), Shinohara et al.
patent: 2007/0086772 (2007-04-01), Shinohara
patent: 1577034 (2005-02-01), None
patent: 10-269325 (1998-10-01), None
patent: 2587789 (1998-10-01), None
patent: 2001-128042 (2001-05-01), None
patent: 2001-223952 (2001-08-01), None
patent: 2002-218328 (2002-08-01), None
patent: 3348800 (2002-09-01), None
patent: 2003-134393 (2003-05-01), None
patent: 2004-80460 (2004-03-01), None
patent: 2005-234143 (2005-09-01), None
patent: 2006-119546 (2006-05-01), None
patent: 2006-259344 (2006-09-01), None
patent: 2007-114283 (2007-05-01), None

Affiliated with

Also associated with

Rating

Image input device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image input device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image input device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4199110