Slide projection system for coplanar stored slides

Details Slide projection system for coplanar stored slides Slide projection system for coplanar stored slides

1987-01-21

1988-09-13

Haroian, Harry N.

Optics: image projectors

Slide transfer mechanism

Slides fixed to movable carrier

353 27R, 353120, G03B 2110

Patent

active

047705248

ABSTRACT:
Apparatus is described for use with a projector which can direct light substantially horizontally through a projection location and which can project the image of a slide thereat onto a screen, which enables the projection of the images of slides contained in a flexible storage sleeve of a type which is normally stored in a three-ring binder with the slides coplanar. A carrier has a pair of slightly spaced walls for receiving the storage sleeve between them, the walls having rows and columns of transparent regions corresponding to the location of the slides in the sleeve. A holder slidably supports the carrier so one of its slides lies at the projection location for projecting the image onto a screen. The holder allows the carrier to be slid horizontally to show any of the slides in a row of slides on the sleeve, and allows the carrier to be moved vertically to show the slides on another row of the sleeve.

REFERENCES:
patent: 2260551 (1941-10-01), Boni et al.
patent: 2271530 (1942-02-01), Wick
patent: 2515602 (1950-07-01), Jablon
patent: 2534561 (1950-12-01), Silver
patent: 2583510 (1952-01-01), Ingram
patent: 3466126 (1969-09-01), Sakamoto
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patent: 3973344 (1976-08-01), Frankel
patent: 4133605 (1979-01-01), Wiggin
patent: 4184754 (1980-01-01), Ozeki

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