(19)
(11) EP 2 331 868 A1

(12)

(43) Date of publication:
15.06.2011 Bulletin 2011/24

(21) Application number: 09791448.5

(22) Date of filing: 13.08.2009
(51) International Patent Classification (IPC): 
F21V 8/00(2006.01)
(86) International application number:
PCT/US2009/053635
(87) International publication number:
WO 2010/021896 (25.02.2010 Gazette 2010/08)
(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 MK MT NL NO PL PT RO SE SI SK SM TR
Designated Extension States:
AL BA RS

(30) Priority: 22.08.2008 US 91009 P

(71) Applicant: 3M Innovative Properties Company
Saint Paul, MN 55133-3427 (US)

(72) Inventors:
  • SYKORA, Craig, R.
    Saint Paul, MN 55133-3427 (US)
  • KRASA, Robert T.
    Saint Paul, MN 55133-3427 (US)

(74) Representative: Reinhard - Skuhra - Weise & Partner GbR 
Patent- und Rechtsanwälte Friedrichstrasse 31
80801 München
80801 München (DE)

   


(54) LIGHT GUIDES INCLUDING LASER-PROCESSED LIGHT EXTRACTORS AND METHODS