(19)

(11)

EP 1 080 391 A1

(12)

(43) Date of publication: 07.03.2001 Bulletin 2001/10 (21) Application number: 98909112.9 (22) Date of filing: 11.03.1998

(51) International Patent Classification (IPC)7: G03B 31/04 (86) International application number: PCT/US9804/746 (87) International publication number: WO 9946/639 (16.09.1999 Gazette 1999/37)

(84) Designated Contracting States: DE FR GB IT (71) Applicants: Gibbens, John Howell Glendale, CA 91207 (US) Rubay, Geoffrey George Glendale, CA 91208 (US)	(72) Inventors: Gibbens, John Howell Glendale, CA 91207 (US) Rubay, Geoffrey George Glendale, CA 91208 (US) (74) Representative: McKeown, Yvonne Mary et al c/o MacLachlan & Donaldson,47 Merrion Square Dublin 2 Dublin 2 (IE)