Patent · US Expired

Optical waveguide devices, elements for making the devices and methods of making the devices and elements

US5292620A · kind A · utility

41Cited by

15References

25Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Bruce L. Booth · West Chester, US
Joseph E. Marchegiano · Wilmington, US

Key dates

Filing date	Apr 8, 1993
Grant date	Mar 8, 1994
Priority date	—
Expiry date	Apr 8, 2013

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S430/146
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A substantially dry method for making an optical waveguide device with at least one buried channel waveguide in a laminated and hardened matrix. The method begins with exposing to light a region of a substantially dry photohardenable film adhered to a support. Then a first substantially dry photohardenable layer which is adhered to a support is laminated to one side of the film. Then the support is removed from the film. Then a second substantially dry photohardenable layer which is adhered to a support is laminated to the other side of the film. Then the layers and film are hardened.

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