1991-04-29
1993-01-19
Perkey, W. B.
G03B 1336
Patent
active
051810611
ABSTRACT:
A camera system for communicating data including a K value of an automatic focusing drive pulse coefficient between a micro computer on a camera body and a zoom lens mounted to the camera body. The zoom lens includes a position detecting device which detects one of a plurality of divided focal length steps corresponding to a focal length of the zoom lens. A K value outputting device outputs a K value at a telephoto extremity or wide angle extremity of the zoom lens, and an arithmetic operating device calculates the K value at each focal length step in accordance with the data of the position detecting device and the K value outputting device.
REFERENCES:
patent: 4477164 (1984-10-01), Nakai et al.
patent: 4496229 (1985-01-01), Ogasawara
patent: 4509842 (1985-04-01), Taniguchi et al.
patent: 4560267 (1985-12-01), Nakai et al.
patent: 4602861 (1986-07-01), Taniguchi et al.
patent: 4673275 (1987-06-01), Nakai et al.
patent: 4841322 (1989-06-01), Kawasaki et al.
patent: 4841325 (1989-06-01), Hoshino et al.
patent: 4914464 (1990-04-01), Azuma et al.
patent: 4924253 (1990-05-01), Imai et al.
patent: 4931820 (1990-06-01), Matsuzawa
patent: 4945376 (1990-07-01), Kawasaki et al.
patent: 5036348 (1991-07-01), Kusaka
patent: 5036349 (1991-07-01), Suzuki et al.
patent: 5038163 (1991-08-01), Hirasawa
patent: 5053798 (1991-10-01), Ohara et al.
patent: 5060005 (1991-10-01), Itoh et al.
patent: 5093680 (1992-03-01), Suzuki et al.
Iwamoto Shigeru
Kawasaki Masahiro
Takahashi Hiroyuki
Asahi Kogaku Kogyo Kabushiki Kaisha
Perkey W. B.
LandOfFree
Camera system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Camera system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Camera system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-104791