A lamp with the following features: 1.1 a light source, which emits light of a first wavelength, and 1.2 a shade, wherein 1.2.1 the shade is arranged at a distance to the light source and so that the light of the first wavelength falls from the light source onto an inner side of the shade, and 1.2.2 the shade is constructed at least in three layers, namely, from the inside, facing the light source, outwards: 1.2.2.1 with the first layer made from plastic or glass, which is permeable for the light of the first wavelength, 1.2.2.2 a color conversion layer, made from at least one color conversion luminescent material, wherein the color conversion layer contains light-dispersing particles in addition to the at least one color conversion luminescent material, 1.2.2.3 a third layer made from plastic or glass, which is permeable for a light of the first and second wavelength (L1, L2), 1.2.2.4 wherein the second wavelength is larger than the first wavelength, and 1.2.2.5 wherein the first layer has a coating, with which the light of the first wavelength and the light of the second wavelength, which is dispersed back through the color conversion layer is reflected again. 1.1 a light source, which emits light of a first wavelength, and 1.2 a shade, wherein 1.2.1 the shade is arranged at a distance to the light source and so that the light of the first wavelength falls from the light source onto an inner side of the shade, and 1.2.2 the shade is constructed at least in three layers, namely, from the inside, facing the light source, outwards: 1.2.2.1 with the first layer made from plastic or glass, which is permeable for the light of the first wavelength, 1.2.2.2 a color conversion layer, made from at least one color conversion luminescent material, wherein the color conversion layer contains light-dispersing particles in addition to the at least one color conversion luminescent material, 1.2.2.3 a third layer made from plastic or glass, which is permeable for a light of the first and second wavelength (L1, L2), 1.2.2.4 wherein the second wavelength is larger than the first wavelength, and 1.2.2.5 wherein the first layer has a coating, with which the light of the first wavelength and the light of the second wavelength, which is dispersed back through the color conversion layer is reflected again. 1.2.1 the shade is arranged at a distance to the light source and so that the light of the first wavelength falls from the light source onto an inner side of the shade, and 1.2.2 the shade is constructed at least in three layers, namely, from the inside, facing the light source, outwards: 1.2.2.1 with the first layer made from plastic or glass, which is permeable for the light of the first wavelength, 1.2.2.2 a color conversion layer, made from at least one color conversion luminescent material, wherein the color conversion layer contains light-dispersing particles in addition to the at least one color conversion luminescent material, 1.2.2.3 a third layer made from plastic or glass, which is permeable for a light of the first and second wavelength (L1, L2), 1.2.2.4 wherein the second wavelength is larger than the first wavelength, and 1.2.2.5 wherein the first layer has a coating, with which the light of the first wavelength and the light of the second wavelength, which is dispersed back through the color conversion layer is reflected again. 1.2.2.1 with the first layer made from plastic or glass, which is permeable for the light of the first wavelength, 1.2.2.2 a color conversion layer, made from at least one color conversion luminescent material, wherein the color conversion layer contains light-dispersing particles in addition to the at least one color conversion luminescent material, 1.2.2.3 a third layer made from plastic or glass, which is permeable for a light of the first and second wavelength (L1, L2), 1.2.2.4 wherein the second wavelength is larger than the first wavelength, and 1.2.2.5 wherein the first layer has a coating, with which the light of the first wavelength and the light of the second wavelength, which is dispersed back through the color conversion layer is reflected again.