A lighting device comprising two or more solid state light emitters which emit light in the range of 430 nm to 480 nm and one or more lumiphors which emit light in the range of 555 nm to 585 nm. Also, a lighting device comprising two or more solid state light emitters. The lighting devices make a mixture...http://www.google.fr/patents/US20080310154?utm_source=gb-gplus-shareBrevet US20080310154 - LIGHTING DEVICE AND LIGHTING METHOD
