(19)

(11)

EP 1 295 165 A1

(12)

(43) Date of publication: 26.03.2003 Bulletin 2003/13 (21) Application number: 01927331.7 (22) Date of filing: 25.04.2001

(51) International Patent Classification (IPC)7: G02F 1/13 (86) International application number: PCT/US0113/231 (87) International publication number: WO 0108/1990 (01.11.2001 Gazette 2001/44)

(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: 25.04.2000 US 199456 P (71) Applicant: Cambridge Research & Instrumentation, Inc. Woburn, MA 01801 (US)	(72) Inventor: MILLER, Peter, J. Newburyport, MA 01950 (US) (74) Representative: Thévenet, Jean-Bruno et al Cabinet Beau de Loménie158, rue de l'Université 75340 Paris Cédex 07 75340 Paris Cédex 07 (FR)