Small size zoom lens

Details Small size zoom lens Small size zoom lens

1985-03-08

1987-04-21

Corbin, John K.

350427, G02B 962, G02B 1514

Patent

active

046591869

ABSTRACT:
The disclosed zoom lens is constructed with a front lens group including, from front to rear, a positive lens unit, a negative lens unit and a positive lens unit having a positive overall refractive power. A rear lens group having a negative overall refractive power arranged on the image side of the front lens group moves axially along with the front lens group in differential relation. The rear lens group is constructed with a negative front lens having a glass relatively large Abbe number and a positive rear lens having a glass of relatively small Abbe number to achieve good stability of chromatic aberration correction against zooming.

REFERENCES:
patent: 4465342 (1984-08-01), Tanaka et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-747746