| 摘要 |
A luminous source for a lighting device having variable color temperature is provided to reduce the making cost of a product by easily performing color temperature conversion of illumination by the replacement of a lens. A luminous source for a lighting device having variable color temperature(100) comprises a light emitting element(300) and a lens(200). An LED(Light Emitting Diode) is applied as the light emitting element. The lens is arranged in the front in which the light of the light emitting element is emitted. A fluorescent layer(210) is formed in the lens. The fluorescent layer converts the light of a specific color emitted from the light emitting element into the light of intended color temperature. The fluorescent layer is made of the mixture of raw material and fluorescent pigment having a light transparent characteristic. The fluorescent layer is formed in the surface of the lens. |
