Zoom lens

Details Zoom lens Zoom lens

1987-10-09

1988-09-13

Corbin, John K.

350423, G02B 1516

Patent

active

047705108

ABSTRACT:
A zoom lens comprising, from front to rear, a first lens component for focusing having a positive refractive power, a second lens component for variation of the image magnification having a negative refractive power, a third lens component for compensation to move in unison with the second lens component, and a rear lens part having a positive refractive power, wherein the first lens component includes, from front to rear, a cemented lens I.sub.1 of two elements of negative and positive powers and a meniscus-shaped lens I.sub.2 of forward convexity having a positive refractive power, and the zoom lens satisfies the following conditions:

REFERENCES:
patent: 4572620 (1986-02-01), Kikuchi
patent: 4621905 (1986-11-01), Kato et al.
patent: 4699474 (1987-10-01), Ozawa
patent: 4720181 (1988-01-01), Hata

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-803436