(19)
(11) EP 1 358 513 A2

(12)

(88) Date of publication A3:
15.05.2003

(43) Date of publication:
05.11.2003 Bulletin 2003/45

(21) Application number: 02719080.0

(22) Date of filing: 18.01.2002
(51) International Patent Classification (IPC)7G02B 5/20, G02F 1/1335, G06K 11/12, G02B 5/00
(86) International application number:
PCT/US0205/741
(87) International publication number:
WO 0209/9479 (12.12.2002 Gazette 2002/50)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 02.02.2001 JP 2001026809
22.06.2001 JP 2001189580

(71) Applicant: 3M Innovative Properties Company
Saint Paul, MN 55133-3427 (US)

(72) Inventor:
  • MINAMI, Kazuhiko
    Yamagata-city, Yamagata 990-0057 (JP)

(74) Representative: VOSSIUS & PARTNER 
Siebertstrasse 4
81675 München
81675 München (DE)

   


(54) OPTICAL FILTER AND FILTER FOR TOUCH PANEL TYPE DISPLAY