(19)

(11)

EP 0 900 502 A1

(12)

(43) Date of publication: 10.03.1999 Bulletin 1999/10 (21) Application number: 98901458.0 (22) Date of filing: 16.02.1998

(51) International Patent Classification (IPC):  G02B 27/ 22( . ) H04N 13/ 04( . ) H04N 13/ 00( . ) (86) International application number: PCT/IB1998/000194 (87) International publication number: WO 1998/038803 (03.09.1998 Gazette 1998/35)

(84) Designated Contracting States: DE FR GB (30) Priority: 28.02.1997 EP 19970200583 (71) Applicant: Koninklijke Philips Electronics N.V. 5621 BA Eindhoven (NL)	(72) Inventor: DRAAIJER, Maurice, Herman, Johan NL-5656 AA Eindhoven (NL) (74) Representative: Schoenmaker, Maarten, et al  Internationaal Octrooibureau B.V. Prof. Holstlaan 6 5656 AA Eindhoven 5656 AA Eindhoven (NL)