| 摘要 |
FIELD: physics.SUBSTANCE: light-emitting diode assembly according to the invention includes: led chip (10), layer of phosphor (12), a layer of filter (14) and light-diffusing layer (16), between the layer of phosphor and filter layer on the path of light emitted by led chip (10), the difference of refraction indices Δn between light-diffusing layer (16) and material adjoining to light-diffusing layer (16), layer of filter (14) is equal to Δn≥0.2 and the difference of refraction indices Δn between light-diffusing layer and the material layer (12) adjoining to light-diffusing layer is Δn≥0.2; and the product of thickness of light-diffusing layer (16) D and refraction index n of light-diffusing layer is 1900 nm≥n·D≥400 nm.EFFECT: invention provides uniform profile of radiation.6 cl, 11 dwg, 9 tbl |
