High-brightness luminescent-based lighting device

A lighting device comprising:

• a solid-state-based light source configured to generate light source light having a peak maximum;
• and
• a luminescent material positioned downstream from the solid-state-based light source and configured to convert at least part of the light source light into luminescent material light;
• wherein the luminescent material light includes an emission band in the visible part of the spectrum which represents at least 80% of the total power of the luminescent material light in the visible part of the spectrum, the emission band having a full width half maximum of at maximum 60 nm, and the emission band having a peak maximum;
• wherein the wavelength of the peak maximum of the light source light subtracted from the wavelength of the peak maximum of the emission band is great-than-or-equal to 0 nm and less-than-or-equal to 60 nm;
• and
• wherein the lighting device is configured to provide the luminescent material light with a radiance of at least 2 W/(sr·mm2).