Optics: image projectors – Selective data retrieval – Plural picture rows on single microcard
Patent
1978-07-10
1981-06-16
Haroian, Harry N.
Optics: image projectors
Selective data retrieval
Plural picture rows on single microcard
G03B 2308
Patent
active
042734274
ABSTRACT:
A system (10) is disclosed for storing and selectively retrieving planar film records, such as microfiche (25). The microfiche are stored in a carousel assembly (12) and are retrieved from the carousel by a positioning assembly (18). The carousel assembly (12) includes several carousels (22, 24), each defined by two slot plates (26, 30; 28, 32). The slot plates have a plurality of slots (37) formed therein, and the microfiche are held by their edges in these slots. Each microfiche is stored in a known slot location in the carousel, and is retrieved through reference to this slot location. The positioning assembly (18) moves an extractor head (16) in two dimensions for retrieval and reading of the microfiche. Movement in both dimensions is entirely accomplished by binary linear actuators (FIG. 6).
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Haroian Harry N.
Harris Corporation
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