Disk film projector

Details Disk film projector Disk film projector

1984-08-28

1986-02-18

Haroian, Harry N.

Optics: image projectors

Slide transfer mechanism

Slides fixed to movable carrier

G03B 2310

Patent

active

045710422

ABSTRACT:
In a disk film projector, desired one of frames of image recorded on a rotary disk of film having a central engaging core is placed at a projecting position for selective reproduction of images recorded in the frames. There is provided a drive unit including a rotary driving shaft having its forward end engageable with the engaging core of the disk film. The rotary disk is held in a plane substantially normal to the rotary driving shaft upon insertion of the rotary disk in position within the projector. The disk film is introduced into, and taken out of, the projector only in a direction substantially normal to the rotary driving shaft. The driving shaft is normally urged in a direction such that the driving shaft is brought into engagement with the engaging core of the rotary disk held in the aforementioned manner. The rotary driving member is locked at a position spaced from the rotary disk when the rotary driving shaft is manually shifted against the urging member and away from the rotary disk.

REFERENCES:
patent: 4396282 (1983-08-01), Anderson
patent: 4473280 (1984-09-01), Staar

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