Image pickup apparatus having a movably controllable...

Details Image pickup apparatus having a movably controllable... Image pickup apparatus having a movably controllable...

2007-07-24

2010-12-14

Whipkey, Jason (Department: 2622)

Television

Camera, system and detail

Optics

C348S363000, C359S888000

Reexamination Certificate

active

07852400

ABSTRACT:
An image pickup apparatus which is capable of preventing light diffraction from being caused by a density step or a thickness step of a filter, thereby preventing degradation of resolution during still image shooting, and securing the dynamic range of exposure control during both moving image shooting and still image shooting. In the image pickup apparatus, an image pickup element converts light incident thereon from a lens into an electric signal. A diaphragm mechanism changes the amount of light incident on the image pickup element. An ND filter covers an aperture of the diaphragm mechanism such that the aperture can be opened and closed, thereby adjusting the amount of light incident on the image pickup element after passing through the aperture. A controller controls a closing operation of the ND filter for closing the aperture, such that the closing operation is performed at different speeds between when a gradation portion of the ND filter covers the aperture and when a transparent portion of the ND filter covers the aperture.

REFERENCES:
patent: 6927798 (2005-08-01), Kaneda
patent: 6930723 (2005-08-01), Tsuda et al.
patent: 2004/0218246 (2004-11-01), Onuki et al.
patent: 2007/0248349 (2007-10-01), Nanjo
patent: 2008/0037092 (2008-02-01), Umezu et al.
patent: 2004-072580 (2004-03-01), None

Affiliated with

Also associated with

Rating

Image pickup apparatus having a movably controllable... 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 pickup apparatus having a movably controllable..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image pickup apparatus having a movably controllable... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4166991