Compact varifocal lens

Details Compact varifocal lens Compact varifocal lens

1993-01-12

1994-04-19

Sugarman, Scott J.

Optical: systems and elements

Lens

With variable magnification

359715, 359716, G02B 1514, G02B 1318

Patent

active

053051483

ABSTRACT:
A varifocal lens is disclosed, comprising, from front to rear, a first lens unit of negative power, a second lens unit of positive power, and a third lens unit of negative power, all these lenses being moved along a common optical axis when the focal length of the entire lens system varies, wherein all the lens units each are constructed with either one lens, or two lenses, the total number of lenses being limited to 3 or 4, while still maintaining good optical performance.

REFERENCES:
patent: 4757336 (1988-07-01), Nakayama et al.
patent: 4871238 (1989-10-01), Sato et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-24569