(19)

(11)

EP 0 901 685 A2

(12)

(43) Date of publication: 17.03.1999 Bulletin 1999/11 (21) Application number: 97937893.0 (22) Date of filing: 28.08.1997

(51) International Patent Classification (IPC):  H01J 61/ 02( . ) H01J 61/ 54( . ) (86) International application number: PCT/NL1997/000489 (87) International publication number: WO 1998/036439 (20.08.1998 Gazette 1998/33)

(84) Designated Contracting States: DE DK NL PT (30) Priority: 30.01.1997 NL 19971005130 (71) Applicant: Iding, Wilhelmus Hermanus 4902 CP Oosterhout (NL)	(72) Inventor: Iding, Wilhelmus Hermanus 4902 CP Oosterhout (NL)