Light conversion assembly, a lamp and a luminaire

摘要

A light conversion assembly, a lamp and a luminaire is provided. The light conversion assembly comprises a first layer and a second layer. The first layer comprises first luminescent material. The first luminescent material comprises particles showing quantum confinement and have at least in one dimension a size in the nanometer range. The first layer is arranged to receive light from a light source emitting light of a first spectral distribution in a violet or blue spectral range. The first spectral distribution has a first peak wavelength. The first layer is configured to convert substantially all the received light towards light of a second spectral distribution in the blue spectral range, independently of the position of first spectral distribution in the violet or blue spectral range. The second spectral distribution has a second peak wavelength which is a longer wavelength than the first peak wavelength. The second layer comprises a second luminescent material. The second layer is arranged to receive light of the second spectral distribution and is configured to at least partially convert the received light towards light of a third spectral distribution being different from the first spectral distribution and the second spectral distribution.

主权项

1. A device comprising:
a light source for emitting first light of a first spectral distribution in a violet or blue spectral range; a first luminescent material comprising particles showing quantum confinement and having at least in one dimension a size in the nanometer range, the first luminescent material being disposed to receive the first light, the first luminescent material being configured to absorb substantially all the received first light, the first luminescent material emitting second light of a second spectral distribution in the blue spectral range, independently of the position of first spectral distribution in the violet or blue spectral range; a second luminescent material, the second luminescent material being arranged to receive second light and being configured to at least partially convert the received second light into third light of a third spectral distribution being different from the first spectral distribution and the second spectral distribution; and a third luminescent material, the third luminescent material being arranged to receive second and/or third light and being configured to at least partially convert the received second and/or third light into fourth light of a fourth spectral distribution being different from the first, second, and third spectral distributions.