Projector

Details Projector Projector

1974-12-04

1976-09-07

Hayes, Monroe H.

Optics: motion pictures

Covertible

G03B 1918

Patent

active

039791599

ABSTRACT:
There is provided a projector comprising a dia projection system and a film projection system. The main lens system and the light source of the projector are common for the two projection systems. A link mechanism connects the not common parts of the two projection systems. By moving one member of one of the systems transverse to the projector the members of the other system are brought into alignment with the light source and main lens system of the projector and vice versa. The alignment is determined by the two end positions of the link mechanism.

REFERENCES:
patent: 632472 (1899-09-01), Roebuck et al.
patent: 1643541 (1927-09-01), Cawthon
patent: 1721425 (1929-07-01), Winzenburg

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