Process for the production of a multipoint light guide by expans

Details Process for the production of a multipoint light guide by expans Process for the production of a multipoint light guide by expans

1985-05-22

1987-05-26

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Utilizing plasma, electric, electromagnetic, particulate, or...

764 17, 764 26, 764342R, 764343, B29D 1100

Patent

active

046684450

ABSTRACT:
Process for the production of a multipoint light guide and products obtained according to this process. This process consists of placing in a mold a bundle of plastics optical fibers obtained by drawing, said fibers being parallel and adjacent to one another and wherein the mold - bundle assembly temperature is homogeneously raised, in order to increase the diameter of the optical fibers until they fill the entire interior of the mold and e.g. assume a hexagonal shape, the thus treated bundle of optical fibers forming the light guide. It in particular makes it possible to obtain multipoint light guides combining both a transmission of images with a unity magnification and the enlargement or reduction thereof.

REFERENCES:
Patents Abstracts of Japan, vol. 7, No. 30 (P-173) [1175], 5 Fevrier 1983; & JP-A-57 181 510 (Mitsubishi Rayon K.K.) 09-11-1982.

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