Arnon O, Baumeister P
Appl Opt. 1978 Sep 15;17(18):2913-6. doi: 10.1364/AO.17.002913.
A confocal mirror assembly is used to measure radiant reflectances in excess of 0.99 with high precision. The mirrors can be either plano or curved with a few diopters of power, and the angle of incidence can vary from 5 degrees to 70 degrees . Multilayer dielectric reflectors consisting of alternate layers of tantalum pentoxide and silica were prepared by evaporation in a vacuum. A maximum reflectance of 0.9996 +/- 0.0002 was measured at 520 nm.
共焦镜组件用于高精度测量超过0.99的辐射反射率。这些镜子可以是平面的，也可以是具有几屈光度光焦度的曲面镜，入射角可在5度至70度之间变化。由五氧化二钽和二氧化硅交替层组成的多层介质反射镜是通过真空蒸发制备的。在520纳米处测得的最大反射率为0.9996±0.0002。
