(19)
(11) EP 0 407 524 A1

(12)

(43) Date of publication:
16.01.1991 Bulletin 1991/03

(21) Application number: 90901188.0

(22) Date of filing: 17.11.1989
(51) International Patent Classification (IPC): 
G02B 6/ 13( . )
G02B 6/ 124( . )
(86) International application number:
PCT/US1989/005139
(87) International publication number:
WO 1990/005926 (31.05.1990 Gazette 1990/12)
(84) Designated Contracting States:
DE FR GB NL

(30) Priority: 21.11.1988 US 19880273785
10.07.1989 US 19890377699

(71) Applicant: EASTMAN KODAK COMPANY
Rochester, New York 14650-2201 (US)

(72) Inventors:
  • BRAZAS, John, Charles, Jr.
    Rochester, NY 14616 (US)
  • MACHIELE, Delwyn, Earl
    Rochester, NY 14625 (US)

(74) Representative: Brandes, Jürgen, Dr. rer. nat., et al 
Wuesthoff & Wuesthoff Patent- und Rechtsanwälte Schweigerstrasse 2
D-81541 München
D-81541 München (DE)

   


(54) METHOD OF MAKING AN INTEGRATED OPTICAL MODE-INDEX ELEMENT