Photography – Camera detail – Diaphragm shutter unit
Reexamination Certificate
2011-04-05
2011-04-05
Perkey, W. B. (Department: 2862)
Photography
Camera detail
Diaphragm shutter unit
Reexamination Certificate
active
07918615
ABSTRACT:
An aperture-ring-and-shutter device includes a base unit, a shutter unit, and a diaphragm unit. The base unit includes a base having an optical opening along an optical axis. The shutter unit includes a shutter sheet, a shutter-driving element disposed on the base, and a toggling element actuated by the shutter-driving element. The toggling element has a guide bar utilized to rotate the shutter sheet. The shutter-driving element switches the toggling element between an opening location and a covering location. The guide bar of the toggling element forces the shutter sheet to expose or cover the optical opening of the base unit. The diaphragm unit includes an aperture plate, a diaphragm-driving element, and a toggled element pushed by the diaphragm-driving element. The aperture plate has an aperture less than the optical opening of the base unit. The toggled element has a guide pin utilized to rotate the aperture plate.
REFERENCES:
patent: 6585429 (2003-07-01), Yaginuma et al.
patent: 6903777 (2005-06-01), Arisaka
patent: 7338221 (2008-03-01), Oishi et al.
patent: 7410310 (2008-08-01), Kihara
patent: 7658558 (2010-02-01), Kawamoto et al.
patent: 2009/0052886 (2009-02-01), Watanabe et al.
patent: 200611069 (2006-04-01), None
English abstract of TW200611069, published on Apr. 1, 2006.
Asia Optical Co. Inc.
Hancock Dennis
Perkey W. B.
Thomas / Kayden
LandOfFree
Aperture-ring-and-shutter 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 Aperture-ring-and-shutter device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aperture-ring-and-shutter device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2717225