EP 1831866 A2 20070912 - METHODS AND APPARATUS FOR PROVIDING LUMINANCE COMPENSATION
Title (en)
METHODS AND APPARATUS FOR PROVIDING LUMINANCE COMPENSATION
Title (de)
VERFAHREN UND VORRICHTUNGEN ZUR BEREITSTELLUNG VON LUMINANZKOMPENSATION
Title (fr)
PROCEDES ET APPAREIL PERMETTANT DE COMPENSER LA LUMINANCE
Publication
Application
Priority
- US 2005045950 W 20051220
- US 63755404 P 20041220
Abstract (en)
[origin: WO2006069002A2] Methods and apparatus for generating two or more different colors or color temperatures of light over a significant range of different saturations or different color temperatures, in which luminance compensation is provided. In one example, generated light is compensated, at least in part, for the "Helmholtz-Kohlrausch" (HK) effect, which models the perception of different brightnesses for different colors or color temperatures, notwithstanding identical luminances. In another example, lighting apparatus including one or more LEDs to generate two or more different colors or color temperatures of light are configured to provide luminance compensation so as to mitigate, at least in part, the HK effect.
IPC 8 full level
G09G 3/32 (2006.01); H05B 44/00 (2022.01)
CPC (source: EP US)
G03G 15/043 (2013.01 - EP US); H05B 45/20 (2020.01 - EP US)
Citation (search report)
See references of WO 2006069002A2
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 LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006069002 A2 20060629; WO 2006069002 A3 20061026; CA 2591133 A1 20060629; EP 1831866 A2 20070912; WO 2006069117 A2 20060629; WO 2006069117 A3 20070412
DOCDB simple family (application)
US 2005045950 W 20051220; CA 2591133 A 20051220; EP 05854627 A 20051220; US 2005046278 W 20051220