Zoom lens apparatus with shared cam groove

Details Zoom lens apparatus with shared cam groove Zoom lens apparatus with shared cam groove

1997-11-10

1999-05-25

Epps, Georgia

Optical: systems and elements

Lens

With variable magnification

359676, 359689, 359695, 359699, 396 72, 396379, 396382, 352139, 352140, G02B 1514, G02B 710

Patent

active

059074396

ABSTRACT:
Two cam pins of the variable magnification lens group and the aberration correction lens group are guided by two side walls of one cam groove. Thus, two cam grooves can deal with three movable lens groups, and there is no need to provide three cam grooves. Consequently, the cam cylinder can be short, and thereby the zoom lens apparatus can be compact. A spring applies force to the two cam pins to separate from one another, so that the cam pins can be pressed against the side walls.

REFERENCES:
patent: 4054372 (1977-10-01), Schroeder
patent: 4627691 (1986-12-01), Tomori
patent: 5144490 (1992-09-01), Yamanouchi
patent: 5712734 (1998-01-01), Kanno

Affiliated with

Also associated with

Rating

Zoom lens apparatus with shared cam groove 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 apparatus with shared cam groove, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zoom lens apparatus with shared cam groove will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-404664