(19)
(11) EP 2 473 002 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.03.2013 Bulletin 2013/12

(43) Date of publication A2:
04.07.2012 Bulletin 2012/27

(21) Application number: 11194625.7

(22) Date of filing: 20.12.2011
(51) International Patent Classification (IPC): 
H05B 33/02(2006.01)
F21S 6/00(2006.01)
F21Y 105/00(2006.01)
 F21S 8/00(2006.01)
F21S 8/06(2006.01)
F21V 19/02(2006.01)
(84) Designated Contracting States:
AL 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 RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 29.12.2010 JP 2010294562

(71) Applicant: Panasonic Electric Works Co., Ltd.
Kadoma-shi Osaka 571-8686 (JP)

(72) Inventors:
  • Miyake, Yoshiyuki
    Osaka (JP)
  • Hirano, Toyoaki
    Katano Osaka (JP)

(74) Representative: Rüger, Barthelt & Abel 
Webergasse 3
73728 Esslingen
73728 Esslingen (DE)

   


(54) Illumination device


(57) [Object] In an illumination device, a user can arbitrarily switch an emission brightness of light.
[Means for Settlement] An illumination device 1 includes: a plurality of EL panels 2 each including: a transparent EL element 20 configured by stacking on a transparent substrate 25 in turn an anode 26a formed of a transparent conducting film, a light emission layer 26b; and a cathode 26c formed of the transparent conducting film; and a fixture body 3 for retaining the EL panels 2 so that light emission regions of the plurality of EL panels 2 can overlap each other, and irradiates light of superposed emission lights of the plurality of EL panels 2. According to the configuration, when a user changes the number of the EL panels 2 to be overlapped on the basis of usage of the illumination device 1, the emission brightness of light can be arbitrarily switched.







Search report












Search report