Projection lens

Details Projection lens Projection lens

1985-02-14

1987-01-06

Corbin, John K.

350412, 350477, G02B 912, G02B 2718

Patent

active

046342389

ABSTRACT:
A projection lens for magnifying and projecting an image appearing on a CRT onto a large screen, comprising, from the screen side, a first lens means including a meniscus lens having both surface convex relative to the screen, a second lens means of positive power and a third lens means group of negative power. The projection lens satisfies the following conditions:

REFERENCES:
patent: 3497577 (1970-02-01), Wichterle
patent: 4300817 (1981-11-01), Betensky
patent: 4348081 (1982-09-01), Betensky
"A System of Optical Design", The Basics of Image Assessment and of Design Techniques with a Survey of Current Lens Types, by Arthur Cox, 1964, the Focal Press, pp. 470-480.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-680373