Projection lens system

Details Projection lens system Projection lens system

1994-05-13

1995-02-07

Look, Edward K.

Optical: systems and elements

Lens

With field curvature shaping

359758, 359760, G02B 962

Patent

active

053880030

ABSTRACT:
A projection lens system which produces a smaller amount of residual chromatic aberrations and which will exhibit satisfactory performance even if it is used as a long-focus lens. The projection lens system is composed of a front group and a rear group. The front group includes, in order from the object side, a positive first lens element, a positive second lens element and a negative third lens element. The lens system satisfies the following conditions:

REFERENCES:
patent: 3121135 (1964-02-01), Altman et al.
patent: 3922071 (1975-11-01), Kitagawa et al.
patent: 4269477 (1981-05-01), Kitagawa
patent: 4560243 (1985-12-01), Terasawa

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1114206