Wide angle single channel projection apparatus

Details Wide angle single channel projection apparatus Wide angle single channel projection apparatus

1974-04-08

1976-12-21

Hayes, Monroe H.

Optics: motion pictures

Panoramic picture type

352132, 35 12N, 352198, G03B 3700

Patent

active

039985326

ABSTRACT:
The invention utilizes a vertically positioned arc lamp and associated lamp ollector-reflector in conjunction with depending associated secondary and projection mirrors, the projection mirror being convex and centrally apertured to form an exit pupil closely adjacent and above the head of an observer and in the center of a curved projection screen to minimize perspective distortion of image as seen by the viewer. The invention further provides an elimination of shadow effect by the depending relationship of the apparatus and by the recessing of arc lamp electrode through an aperture in the lamp reflector. An adaption of image spacing by recessed fitting of image on film to adapt the film to intended projector image width is also an aspect of the invention.

REFERENCES:
patent: 3101645 (1963-08-01), Hemstreet
patent: 3281519 (1966-10-01), Giordano
patent: 3296923 (1967-01-01), Miles
patent: 3367046 (1968-02-01), Neuberger
patent: 3539249 (1970-11-01), Jaulmes
patent: 3758714 (1973-09-01), Herndon

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