(19)
(11) EP 2 329 306 A1

(12)

(43) Date of publication:
08.06.2011 Bulletin 2011/23

(21) Application number: 08799347.3

(22) Date of filing: 09.09.2008
(51) International Patent Classification (IPC): 
G02B 7/04(2006.01)
(86) International application number:
PCT/US2008/075679
(87) International publication number:
WO 2010/030267 (18.03.2010 Gazette 2010/11)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(71) Applicants:
  • Optoelectronics Co., Ltd.
    Saitama Pref. 335-0002 (JP)
  • Opticon, Inc.
    Orangeburg, NY 10962 (US)

(72) Inventors:
  • HAYAKAWA, Hiroshi
    Saitama Pref. 335-0002 (JP)
  • YAMANOUCHI, Masayoshi
    Saitama Pref. 335-0002 (JP)
  • SUJINO, Toshio
    Saitama Pref. 335-0002 (JP)

(74) Representative: Charlton, Peter John 
Elkington and Fife LLP, Prospect House 8 Pembroke Road Sevenoaks,
Kent TN13 1XR
Kent TN13 1XR (GB)

   


(54) VARIABLE FOCUS OPTICAL SYSTEM