(19)
(11) EP 1 470 450 A1

(12)

(43) Date of publication:
27.10.2004 Bulletin 2004/44

(21) Application number: 03714718.8

(22) Date of filing: 27.01.2003
(51) International Patent Classification (IPC)7G03F 7/20, G21K 1/06
(86) International application number:
PCT/EP2003/000784
(87) International publication number:
WO 2003/065123 (07.08.2003 Gazette 2003/32)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
Designated Extension States:
AL LT LV MK RO

(30) Priority: 01.02.2002 EP 02002429

(71) Applicant: Carl Zeiss SMT AG
73447 Oberkochen (DE)

(72) Inventors:
  • SINGER, Wolfgang
    73431 Aalen (DE)
  • ANTONI, Martin
    73434 Aalen (DE)
  • WANGLER, Johannes
    89551 Königsbronn (DE)
  • ESCUDERO SANZ, Isabel
    NL-2600 AD Delft (NL)

(74) Representative: Dr. Weitzel & Partner 
Friedenstrasse 10
89522 Heidenheim
89522 Heidenheim (DE)

   


(54) OPTICAL ELEMENT FOR FORMING AN ARC-SHAPED FIELD