(19)

(11)

EP 1 107 859 A1

(12)

(43) Date of publication: 20.06.2001 Bulletin 2001/25 (21) Application number: 99921859.7 (22) Date of filing: 07.05.1999

(51) International Patent Classification (IPC)7: B29D 11/00, B29D 17/00, G03H 1/20, G03H 1/02, G03F 7/00 (86) International application number: PCT/US9910/249 (87) International publication number: WO 9958/319 (18.11.1999 Gazette 1999/46)

(84) Designated Contracting States: DE FR GB (30) Priority: 08.05.1998 US 75023 20.08.1998 US 137397 (71) Applicant: PHYSICAL OPTICS CORPORATION TorranceCalifornia 90501-1821 (US)	(72) Inventors: SAVANT, Gajendra, D. Torrance, CA 90505 (US) KUPIEC, Stephen, A. Torrance, CA 90503 (US) JANNSON, Joanna, L. Torrance, CA 90505 (US) (74) Representative: Schmit, Christian Norbert Marie et al Cabinet Christian Schmit et Associes,8, place du Ponceau 95000 Cergy 95000 Cergy (FR)