(19)

(11)

EP 0 756 717 A1

(12)

(43) Date of publication: 05.02.1997 Bulletin 1997/06 (21) Application number: 94914883.0 (22) Date of filing: 21.04.1994

(51) International Patent Classification (IPC):  G02B 21/ 06( . ) G02B 21/ 08( . ) (86) International application number: PCT/US1994/004438 (87) International publication number: WO 1995/029419 (02.11.1995 Gazette 1995/47)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE (71) Applicant: EDGE SCIENTIFIC INSTRUMENT CORPORATION Santa Monica,CA 90404 (US)	(72) Inventor: GREENBERG, Gary Los Angeles, CA 90066 (US) (74) Representative: Barnard, Eric Edward  BROOKES & MARTIN High Holborn House 52/54 High Holborn London WC1V 6SE London WC1V 6SE (GB)