Zoom lens system capable of macrophotography

Details Zoom lens system capable of macrophotography Zoom lens system capable of macrophotography

1977-05-19

1980-04-15

Clark, Conrad J.

G01B 1518

Patent

active

041981260

ABSTRACT:
The present lens system is capable of providing both a zooming operation and also a relatively efficient and economical macrophotography mode of operation. The zoom lens system contains the basic conventional lens groups of a focusing lens group, variator lens group, compensator lens group and relay lens group. These individual lens group function in a conventional manner during a zooming mode of operation. However, during the macrophotography mode of operation, the individual lens element that form the relay lens group are capable of coordinate movement with other lens elements in the lens system to provide a relatively compact and economical lens design for macrophotography. Thus, the relay lens group is not only capable of performing its normal auxiliary function of image transmission and final balancing of aberrations imposed by the design parameters of the zoom mode of operation but is further capable of compensating for the introduction of aberrations that will occur in the macrophotography mode of operation. In some embodiments, the plurality of movable lens elements that form the relay lens group has at least that movable lens element closest to the design image plane moved to provide the second macrophotography mode of operation.

REFERENCES:
patent: 3659921 (1972-05-01), Hirose
patent: 3784284 (1974-01-01), Nakamura
patent: 3961845 (1976-06-01), Doi et al.
patent: 4054372 (1977-10-01), Schroeder
patent: 4080047 (1978-03-01), Uesugi et al.

Affiliated with

Also associated with

Rating

Zoom lens system capable of macrophotography does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Zoom lens system capable of macrophotography, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zoom lens system capable of macrophotography will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-473574