(19)
(11) EP 1 966 921 A1

(12)

(43) Date of publication:
10.09.2008 Bulletin 2008/37

(21) Application number: 05850989.4

(22) Date of filing: 28.12.2005
(51) International Patent Classification (IPC): 
H04J 14/02(2006.01)
 G02B 6/34(2006.01)
(86) International application number:
PCT/IT2005/000773
(87) International publication number:
WO 2007/074485 (05.07.2007 Gazette 2007/27)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

(71) Applicant: Pirelli & C. S.p.A.
20123 Milano (IT)

(72) Inventors:
  • SOCCI, Luciano
    20126 Milano (IT)
  • GALLI, Paola
    20126 Milano (IT)
  • GHIDINI, Silvia
    20126 Milano (IT)
  • ROMAGNOLI, Marco
    20126 Milano (IT)

(74) Representative: Tirloni, Bartolomeo 
Bugnion S.p.A. Via Dante, 17
25122 Brescia
25122 Brescia (IT)

   


(54) METHOD AND DEVICE FOR TUNABLE OPTICAL FILTERING