(19)

(11)

EP 0 660 959 A1

(12)

(43) Date of publication: 05.07.1995 Bulletin 1995/27 (21) Application number: 93918801.0 (22) Date of filing: 06.09.1993

(51) International Patent Classification (IPC):  G02B 5/ 18( . ) G11B 7/ 0033( . ) G06K 7/ 10( . ) G11B 7/ 0065( . ) (86) International application number: PCT/AU1993/000455 (87) International publication number: WO 1994/006097 (17.03.1994 Gazette 1994/07)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 07.09.1992 AU 1992PL04512 18.01.1993 AU 1993PL06817 29.01.1993 AU 1993PL07012 11.02.1993 AU 1993PL07217 15.02.1993 AU 1993PL07259 15.03.1993 AU 1993PL07789 27.04.1993 AU 1993PL08454 02.06.1993 AU 1993PL09150 09.06.1993 AU 1993PL09273 24.06.1993 AU 1993PL09588 (71) Applicant: MIKOH TECHNOLOGY LIMITED Wahroonga, NSW 2076 (AU)

(72) Inventor: ATHERTON, Peter, Samuel Turramurra, NSW 2074 (AU) (74) Representative: Coyle, Philip Aidan, et al  F. R. KELLY & CO. 27 Clyde Road Ballsbridge Dublin 4 Dublin 4 (IE)