Projection screen means

Details Projection screen means Projection screen means

1977-11-10

1979-05-01

Wintercorn, Richard A.

350129, G03B 2156

Patent

active

041520475

ABSTRACT:
A screen means free from ghost image comprising a screen and Fresnel lens arranged so that its Fresnel surface faces the screen. The Fresnel lens is arranged that optically inactive surfaces of its Fresnel surface become approximately parallel with the advancing direction of projected rays entered through and refracted by the back surface of the Fresnel lens.

REFERENCES:
patent: 3319517 (1967-05-01), Rondas et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-628064