Optics: motion pictures – Panoramic picture type
Patent
1990-04-06
1991-02-12
Hayes, Monroe H.
Optics: motion pictures
Panoramic picture type
352 70, 350125, 353 48, G03B 3700
Patent
active
049919555
ABSTRACT:
A circular projection system using segmented trapezoidal screens arranged in a continuous arcuate array about a central vertical axis. The top of each screen is tilted downward. Each screen is illuminated by a projector which is mounted above and behind the screen which opposes it. The image from each projector is also angled downward.
For an eight-screen system, each screen is tilted by approximately 8.degree.. For a nine-screen system, each is tilted by approximately 7.degree.. For maximum linearity, the ratio of the distance between the projector lens and the top of the screen on which it projects to the width of the top of said screen is substantially equal to the ratio of the distance between the projector lens and the bottom of said screen to the width of the bottom of said screen.
REFERENCES:
patent: 1199460 (1916-09-01), Featherstone
patent: 1272623 (1918-06-01), Comstock
patent: 2795996 (1957-06-01), Sauer
patent: 2942516 (1960-06-01), Disney et al.
patent: 3107577 (1963-10-01), Adams
patent: 3118340 (1964-01-01), Iwerks
patent: 3313068 (1967-04-01), Pinto
patent: 3785715 (1974-01-01), Mecklenborg
patent: 4473355 (1984-09-01), Pongratz
patent: 4641918 (1987-02-01), Moffatt et al.
Hayes Monroe H.
Todd-AO Corporation
LandOfFree
Circular projection and display system using segmented trapezoid does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Circular projection and display system using segmented trapezoid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circular projection and display system using segmented trapezoid will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-17348