A value related to the hiding power of a coating. The ratio of reflectance of the coating over black and white backgrounds at equal film thickness.
同涂层遮盖力相关的一个数值，以相同的涂层的厚度在黑色和白色背景下涂层反射系数的比值。
2
This paper describes the principle, equipments, method and results in the measurement of reflectance of black coating in the electrically calibrated conical cavity radiometer.
本文介绍电校准辐射计的锥腔形黑涂层反射比的测量原理、装置、方法以及测量结果。
3
The reflectance of the coating to visible light and to near IR are 86% and 81%, respectively.