Liquid crystal illuminator having ellipoidal light guide

Details Liquid crystal illuminator having ellipoidal light guide Liquid crystal illuminator having ellipoidal light guide

1978-05-25

1980-12-02

Bauer, Edward S.

350 9615, G01F 1133

Patent

active

042367913

ABSTRACT:
The invention relates to an optical element in the form of a body (fluorescent body) which comprises a material with an index of refraction greater than one, contains fluorescent particles, and manifests at least one output coupling zone (light outlet window). This element is characterized, in accordance with the invention, by its use for collecting, conducting, and focused output coupling of optical radiation. The fluorescent body primarily serves the purpose of collecting natural or artificially produced radiation in large areas, and to focus it on a small-area, relatively weak receiver; or, with and without a light valve, for the purpose of representation of information (or data).

REFERENCES:
patent: 4111534 (1978-09-01), Cirkler et al.
patent: 4142781 (1979-03-01), Baur et al.

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