Projection lens system

Details Projection lens system Projection lens system

1984-07-05

1986-06-17

Corbin, John K.

350475, G02B 1318

Patent

active

045952639

ABSTRACT:
A lens system is provided which is suitable for back-projecting an enlarged image of a TV cathode ray tube (CRT). The lens system includes a concave CRT face plate FP and three lens elements L1, L2, L3. L1 and L3 are each of positive power and each have one aspheric surface. L2 is between L1 and L3 and also has one aspheric surface. The powers of the elements are chosen so that

REFERENCES:
patent: 4163604 (1979-08-01), Betensky
patent: 4496223 (1985-01-01), Baker

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-2270307