EP 1706665 A2 20061004 - ILLUMINATION DEVICE FOR SIMULATING NEON OR SIMILAR LIGHTING USING PHOSPHORESCENT DYE
Title (en)
ILLUMINATION DEVICE FOR SIMULATING NEON OR SIMILAR LIGHTING USING PHOSPHORESCENT DYE
Title (de)
BELEUCHTUNGSVORRICHTUNG ZUR SIMULATION VON NEON- ODER ÄHNLICHEM LICHT UNTER VERWENDUNG VON PHOSPHORESZIERENDEN FARBSTOFFEN
Title (fr)
DISPOSITIF D'ECLAIRAGE PERMETTANT DE SIMULER UN ECLAIRAGE AU NEON OU SIMILAIRE A L'AIDE D'UN COLORANT PHOSPHORESCENT
Publication
Application
Priority
- US 2004043867 W 20041229
- US 53358103 P 20031231
Abstract (en)
[origin: WO2005065356A2] An illumination device simulates neon lighting using a light source for emitting light of a predetermined first hue and a light-transmitting medium having a predetermined density of phosphorescent dye positioned adjacent to the light source. The phosphorescent dye will absorb light emitted by the light source and emit light of a second hue. An observer of the device perceives light that is of a hue that is different from the predetermined first hue. A means for varying the intensity of the light emitted by the light source creates color changing effects in the illumination device. Light-emitting diodes (LEDs) are a suitable light source. A waveguide having both optical waveguide and light scattering properties is used to diffuse the combined light and simulate the uniform appearance of a neon tube. Alternatively, the waveguide itself can be doped with phosphorescent dye to emit light having the perceived hue.
IPC 8 full level
F21K 99/00 (2010.01); F21S 4/00 (2006.01); F21V 8/00 (2006.01); F21V 9/16 (2006.01); G02B 6/00 (2006.01)
CPC (source: EP US)
F21K 9/00 (2013.01 - EP US); F21K 9/64 (2016.07 - EP US); F21S 4/20 (2016.01 - EP); F21V 9/38 (2018.01 - EP US); G02B 6/0023 (2013.01 - EP US); F21Y 2115/10 (2016.07 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005065356 A2 20050721; WO 2005065356 A3 20060105; CN 1902434 A 20070124; EP 1706665 A2 20061004; EP 1706665 A4 20070321
DOCDB simple family (application)
US 2004043867 W 20041229; CN 200480039579 A 20041229; EP 04815860 A 20041229