Illumination distribution system for microrecord reader

Details Illumination distribution system for microrecord reader Illumination distribution system for microrecord reader

1976-09-02

1978-03-07

Haroian, Harry N.

Optics: image projectors

Selective data retrieval

Plural picture rows on single microcard

353120, G03B 2302, G03B 2126

Patent

active

040777073

ABSTRACT:
An illumination distribution system for a microrecord reader in which information is optically extracted from the microrecord by a lens array. The microrecord is formed by a plurality of data sets recorded on a record medium, each set representing a reduced scale image of a distinct page of intelligence and being dissected into a multiplicity of data sub-sets which are dispersed on the medium. The illumination distribution system is constituted by a plurality of light-conducting fibers each acting to conduct light derived from a common source to a respective sub-set thereby illuminating the sub-sets of a data set from which information is being extracted, the remaining areas of the microrecord being un-illuminated, thereby avoiding the waste of the available light energy and conserving power.

REFERENCES:
patent: 2403452 (1946-07-01), Novak
patent: 3437804 (1969-04-01), Schaefer et al.
patent: 3704068 (1972-11-01), Waly
patent: 3712724 (1973-01-01), Courtney-Pratt

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