Standard zoom lens system having a large aperture ratio

Details Standard zoom lens system having a large aperture ratio Standard zoom lens system having a large aperture ratio

1985-08-16

1987-12-08

Arnold, Bruce Y.

350432, 350450, G02B 1514, G02B 1318

Patent

active

047115335

ABSTRACT:
A standard zoom lens system with a large aperture ratio comprising a front lens group having a negative refracting power, a rear lens group having a positive refracting power and a diaphragm arranged in the rear lens group in which at least one of lens surface of the rear lens group which surface is positioned at the front side of a diaphragm is formed as an aspherical surface, thereby enabling to have various aberrations well corrected and make the system compact.

REFERENCES:
patent: 4153338 (1979-05-01), Fujii
patent: 4153339 (1979-05-01), Tajima et al.

Affiliated with

Also associated with

Rating

Standard zoom lens system having a large aperture ratio does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Standard zoom lens system having a large aperture ratio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Standard zoom lens system having a large aperture ratio will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-20302