REFLECTOR WITH COMPOSITE LAYER TO IMPROVE REFLECTANCE AND ITS PRODUCTION

摘要: PROBLEM TO BE SOLVED: To produce a reflector with multilayer film which improves reflectance at low cost. SOLUTION: This is provided multilayered reflectances as reflection surface layer on body. The composed of an outer (HI layer) and lower LI layer. HI faces toward radiation to be reflected has refractive index n2 , while the formed between body n1 . than both layers are λ/4 thick. sol/gel optical thickness dopi ,1 dopt ,2 expressed by ,i =di .ni =li .λ/4±20nm, wherein (i) 1 or 2, d1 (nm) d2 layer, λis average wavelength rays incident surface, l1 l2 odd natural numbers. barrier aluminum oxide produced anodic oxidation