(19)
(11) EP 1 184 685 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
21.02.2007 Bulletin 2007/08

(45) Mention of the grant of the patent:
27.12.2006 Bulletin 2006/52

(21) Application number: 01120616.6

(22) Date of filing: 29.08.2001
(51) International Patent Classification (IPC): 
G02B 1/11(2006.01)

(54)

Optical element having anti-reflection film

Optisches Element mit Antireflexbeschichtung

Elément optique avec traitement anti-réfléchissant

(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

(30) Priority: 29.08.2000 JP 2000258628
27.04.2001 JP 2001130754

(43) Date of publication of application:
06.03.2002 Bulletin 2002/10

(73) Proprietor: HOYA CORPORATION
Shinjyu-ku Tokyo 161-8525 (JP)

(72) Inventors:
  • Mitsubishi, Takeshi
    Shinjyu-ku, Tokyo 161-8525 (JP)
  • Kamura, Hitoshi
    Shinjyu-ku, Tokyo 161-8525 (JP)
  • Shinde, Kenichi
    Shinjyu-ku, Tokyo 161-8525 (JP)

(74) Representative: HOFFMANN EITLE 
Patent- und Rechtsanwälte Arabellastrasse 4
81925 München
81925 München (DE)


(56) References cited: : 
DE-A- 2 730 759
GB-A- 1 381 485
US-A- 5 589 280
US-A- 5 942 338
 DE-A- 4 427 215
US-A- 5 181 141
US-A- 5 725 959
   
  • BERNING P H: "USE OF EQUIVALENT FILMS IN THE DESIGN OF INFRARED MULTILAYER ANTIREFLECTION COATINGS" MODERNE TECHNIK VON A BIS Z, KOLN, VERLAG TUV RHEINLAND, DE, 1991, pages 192-197, XP000279749
  • DATABASE WPI Section Ch, Week 199103 Derwent Publications Ltd., London, GB; Class A89, AN 1991-018878 XP002269186 -& JP 02 291501 A (HOYA CORP), 3 December 1990 (1990-12-03)
  • EPSTEIN L.I.: "The Design of Optical Filters" JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, vol. 42, no. 11, 30 November 1952 (1952-11-30), pages 806-810, XP002269185
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).