(19)
(11) EP 1 606 669 A2

(12)

(88) Date of publication A3:
09.12.2004

(43) Date of publication:
21.12.2005 Bulletin 2005/51

(21) Application number: 04713482.0

(22) Date of filing: 21.02.2004
(51) International Patent Classification (IPC)7G02F 1/1335
(86) International application number:
PCT/US2004/005310
(87) International publication number:
WO 2004/077105 (10.09.2004 Gazette 2004/37)
(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 RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 21.02.2003 US 371235
03.03.2003 US 379384

(71) Applicant: Xtellus Inc.
Morris Plains, NJ 07950 (US)

(72) Inventors:
  • CAVANAUGH, Shanti, A.
    Santa Rosa, CA 95404 (US)
  • AUSTIN, Lindsay, W.
    Santa Rosa, CA 95404 (US)
  • YOUNG, Mark, E.
    Santa Rosa, CA 95404 (US)
  • MOLINARI, Louis, J.
    Windsor, CA 94952 (US)

(74) Representative: Johnstone, Helen Margaret 
Eric Potter Clarkson Park View House 58 The Ropewalk
Nottingham NG1 5DD
Nottingham NG1 5DD (GB)

   


(54) LIQUID CRYSTAL VARIABLE OPTICAL ATTENUATOR