(19)
(11) EP 1 734 562 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
19.09.2007 Bulletin 2007/38

(43) Date of publication A2:
20.12.2006 Bulletin 2006/51

(21) Application number: 05028436.3

(22) Date of filing: 23.12.2005
(51) International Patent Classification (IPC): 
H01J 61/35(2006.01)
 H01J 61/50(2006.01)
(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
Designated Extension States:
AL BA HR MK YU

(30) Priority: 16.06.2005 CN 200510075337

(71) Applicant: Nanoforce Technologies Corporation
Tucheng City Taipei County, Taiwan, R.O.C. (TW)

(72) Inventor:
  • Huang, Fu-Kuo
    Tucheng City Taipei County, Taiwan (CN)

(74) Representative: Kador & Partner 
Corneliusstrasse 15
80469 München
80469 München (DE)

   


(54) Luminous thin film having ultraviolet filtering and explosion-proofing for fluorescent lamps


(57) A luminous lamp thin film having ultraviolet filtering and explosion-proof is disclosed. An outside of a lamp (10) is coated by a transparent layer (20) which comprises phosphor powder (30). Energy generated by the lamp (10) is absorbed by the phosphor powder (30) while the lamp is shining. The phosphor powder releases energy, so as to provide auxiliary lighting after turning off the lamp.
In addition, the phosphor powder can absorb harmful ultraviolet and other harmful radiations with shorter wavelengths to be one part of the thin film for filtering harmful radiations. The harmful ultraviolet can be transformed by the phosphor powder into visible light to red shift radiations with short wavelengths; hence the harmful radiations with shorter wavelengths can be eliminated. The illumination of visible light can be further increased.
The transparent layer can catch broken fragments of the outside of the lamp to decrease accidents when the lamp is broken.







Search report