Patent · US Expired

New multicompatible optical coupler produced by injection molding

US5208884A · kind A · utility

11Cited by

5References

14Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Werner Groh · Lich, DE
Andreas Brockmeyer · Zwingenberg, DE
Jurgen Theis · Oberursel, DE
Thomas Stehlin · Kriftel, DE

Key dates

Filing date	Mar 21, 1991
Grant date	May 4, 1993
Priority date	—
Expiry date	Mar 21, 2011

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29K2995/0031
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A process for the production of optical couplers from polymers in which the coupler structure is produced by injection molding and the polymers employed are preferably amorphous polymers, in particular PMMA, polystyrenes, polycarbonates, polyolefins, polyesters, polysulfones, polyether sulfones, polyether imides, polyarylates, polyamides or polyester carbonates. The coupler element is solid and may be coated with a polymer which has a lower refractive index than the coupler, so that the light propagation takes place in the coupler itself.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.