(19)

(11)

EP 0 871 917 A1

(12)

(43) Date of publication: 21.10.1998 Bulletin 1998/43 (21) Application number: 96921565.0 (22) Date of filing: 06.06.1996

(51) International Patent Classification (IPC):  G02B 3/ 14( . ) H04N 13/ 00( . ) G02B 27/ 22( . ) (86) International application number: PCT/US1996/010181 (87) International publication number: WO 1996/041227 (19.12.1996 Gazette 1997/03)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: LT LV (30) Priority: 07.06.1995 US 19950476852 07.06.1995 US 19950476853 07.06.1995 US 19950476854 (71) Applicant: Wohlstadter, Jacob N. Gaithersburg, MD 20877 (US)	(72) Inventor: WOHLSTADTER, Jacob, N. Rockville, MD 20850 (US) (74) Representative: Moir, Michael Christopher, et al  Mathys & Squire 100 Gray's Inn Road London WC1X 8AL London WC1X 8AL (GB)