Projection system of high efficiency

Details Projection system of high efficiency Projection system of high efficiency

1976-02-25

1978-09-05

Haroian, Harry N.

Optics: image projectors

Miscellaneous

353 99, G03B 2100

Patent

active

041115384

ABSTRACT:
There is disclosed a light system for projection of images onto a visual read out surface such as a screen or photo receptor recording device such as a xerographic drum. The projection system employs a nonpoint light source which forms a light beam of nonuniform intensity. The light beam is passed through a conical light pipe with a high degree of internal reflection which diffuses the light beam, thereby reducing the nonuniformity of the light beam and also collimates the light beam by internal reflections. The collimated light beam is then modulated with imaging information and is focused onto a visual readout surface such as a screen or a recording device surface.

REFERENCES:
patent: 3001447 (1961-09-01), Ploke
patent: 3278738 (1966-10-01), Clark
patent: 3437804 (1969-04-01), Schaefer et al.
patent: 3485550 (1969-12-01), Dehaller et al.
patent: 3544192 (1970-12-01), Goldstein
patent: 3676667 (1972-07-01), Malifaud
patent: 3693515 (1972-09-01), Baker
patent: 3716359 (1973-02-01), Sheridon
patent: 3756688 (1973-09-01), Hudson et al.
patent: 3962702 (1976-06-01), Kriege

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2092239