Camera apparatus that can have the time for moving rear lens gro

Details Camera apparatus that can have the time for moving rear lens gro Camera apparatus that can have the time for moving rear lens gro

1997-04-07

1998-09-01

Metjahic, Safet

Photography

Having variable focal length of camera objective

Having focus operation

396 81, 396 87, 396129, G03B 310, G03B 300, G03B 700

Patent

active

058024050

ABSTRACT:
The position of a rear lens group at the time power is turned off is stored in a memory as a relative value on the basis of the positions of the rear lens group focusing on a subject at a near point and at an infinity point, respectively, with respect to the position of a zoom lens group at power off. When power is turned on, the rear lens group is moved to the reference position by a pulse motor, and the position of the zoom lens group is detected by an encoder. After the position detection operation, the rear lens group is moved to a position calculated according to the current position of the zoom lens group and the relative value stored in the memory.

REFERENCES:
patent: 4743931 (1988-05-01), Matsuzaki et al.
patent: 4748509 (1988-05-01), Otake et al.
patent: 4885600 (1989-12-01), Iwase et al.
patent: 5146071 (1992-09-01), Ookubu et al.
patent: 5179407 (1993-01-01), Kusaka et al.
patent: 5280317 (1994-01-01), Haraguchi et al.
patent: 5281796 (1994-01-01), Kaneda et al.
patent: 5302991 (1994-04-01), Nakayama
patent: 5305049 (1994-04-01), Miyazaki et al.
patent: 5363164 (1994-11-01), Kobayashi et al.
patent: 5448413 (1995-09-01), Kobayashi et al.

Affiliated with

Also associated with

Rating

Camera apparatus that can have the time for moving rear lens gro 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 apparatus that can have the time for moving rear lens gro, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Camera apparatus that can have the time for moving rear lens gro will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-283183