Drawing device

Details Drawing device Drawing device

1978-12-11

1980-06-24

Haroian, Harry N.

Optics: image projectors

Cabinet encloses projector and one side of screen

Light shield, mask, hood, or diaphragm

353 97, G03B 2122

Patent

active

042092370

ABSTRACT:
A device for projecting images from a film strip onto a suitable sheet of drawing paper includes a housing having a source of illumination mounted on the interior. A drawing surface is provided on the housing for supporting the drawing paper and a guideway mounting a film strip with images to be traced is located within the housing between the source of illumination and the drawing surface. A shield is rotatably mounted in the housing to block a part of the film strip from the source of illumination, so that, at any given time, only a portion of an image on the film strip is projected onto the drawing surface. A device for rotating the shield to sequentially expose the entire image to the source of illumination is provided and interconnected to a device for generating a sound as the shield is rotated. An index member is defined on the housing for indexing the film strip within the housing.

REFERENCES:
patent: 1559665 (1925-11-01), Beery et al.
patent: 1572671 (1926-02-01), Myers
patent: 2301274 (1942-11-01), Greiser
patent: 3699660 (1972-10-01), Siegel
patent: 3768899 (1973-10-01), Parra
patent: 3914038 (1975-10-01), Liguori

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