Process for producing a light-conducting structure
Abstract
Abstract LIGHT-CONDUCTING STRUCTURES EACH HAVING A GRANDUAL REFRACTIVE INDEX GRADIENT IN A DIRECTION TRANSVERSE TO THE DIRECTION IN WHICH LIGHT IS TO ADVANCE IN THE STRUCTURE, WHICH STRUCTURE IS MADE OF A TRANSPARENT MIXTURE OF AT LEAST TWO SYNTHETIC POLYMERS HAVING DIFFERENT REFRACTIVE INDEXES, THE PROPORTIONS OF THE POLYMERS IN THE MIXTURE BEING SUCH THAT THEY VARY PROGRESSIVELY IN A DIRECTION TRANSVERSE TO THE DIRECTION IN WHICH LIGHT IS TO ADVANCE THEREBY TO CREATE THE REFRACTIVE INDEX GRADIENT. THIS VARIATION IN THE MIXTURE OF AT LEAST TWO POLYMERS IS PRODUCED BY SELECTIVE EXTRACTION OF THE MIXTURE BY A SOLVENT IN WHICH ONE POLYMER IN THE MIXTURE IS SOLUBLE BUT THE OTHER POLYMER IS LESS SOLUBLE.
Inventors
- 👤 M Irie
Bibliographic Details
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