Patent ID: 11841136

Abstract:
The invention provides a light generating device (1000) configured to generate device light (1001), wherein the light generating device (1000) comprises a first light source (110), a first luminescent material (210), a second source (120) of second light (121), and a third light source (130), wherein: the first light source (110) is configured to generate blue first light source light (111) having a first peak wavelength λ1 selected from the spectral wavelength range of 440-475 nm, wherein the first light source (110) is a first laser light source (10); the first luminescent material (210) is configured to convert at least part of the first light source light (111) into first luminescent material light (211) having an emission band having wavelengths in one or more of (a) the green spectral wavelength range and (b) the yellow spectral wavelength range, wherein thefirst luminescent material (210) comprises a luminescent material of the type A3B5O12:Ce, wherein A comprises one or more of Y, Gd, Tb and Lu, and wherein B comprises one or more of Al, Ga, and In, wherein A comprises at least Y, and wherein B comprises at least Al; the second source (120) of second light (121) is configured to provide the second light (121) having an emission band having a dominant wavelength or peak wavelength in the spectral wavelength range of 580-610 nm; the third light source (130) is configured to generate red third light source light (131) having a third peak wavelength λ3 selected from the spectral wavelength range of 630-670 nm, wherein the third light source (130) is a third laser light source (30); the light generating device (1000) is configured to provide in a first operational mode white device light (1001) comprising the first light source light (111), the first luminescent material light (211), the second light (121), and the third light source light (131), with a correlated color temperature selected from the range of 2000-5000 K and a color rendering index (CRI) of at least 80.