Copying lens system

Details Copying lens system Copying lens system

1991-10-11

1992-10-13

Dzierzynski, Paul M.

Optical: systems and elements

Lens

Multiple component lenses

359785, 359784, G02B 914

Patent

active

051556324

ABSTRACT:
A copying lens system of a three-unit/three-element composition that can be made from relatively inexpensive optical materials and which exhibits satisfactory performance at copying ratios ranging from about 0.5 to 2.0. The lens system includes, in order from the object side, a first lens of positive meniscus having a convex surface directed to the object, a negative second lens having a concave surface on both sides, and a positive third lens having a convex surface on both sides. The lens system satisfies the following conditions:

REFERENCES:
patent: 2279372 (1942-04-01), Herzberger
patent: 3640607 (1972-02-01), Conrad
patent: 4522471 (1985-06-01), Nishioka
patent: 4542961 (1985-09-01), Sato
patent: 4892398 (1990-01-01), Kudo et al.

Affiliated with

Also associated with

Rating

Copying lens system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1305685