干涉滤光片是用来获得近似单色光的光学器件。本文谈谈砝布里—珀罗干涉滤光片和多层介质干涉滤光片的结构原理、光学特性及应用、检定与维护等问题。一、结构和原理 1.砝布里—珀罗干涉滤光片这种干涉滤光片由两块适当的玻璃板组成。玻璃板相对的表面镀上一层部分反射的金属薄膜,两板之间充以透明介质。这种结构称为砝布里—珀罗标准具,如图1所示。 Interference filters are optics used to obtain approximately monochromatic light. This article talks about the structural principle, optical characteristics and application, calibration and maintenance of the Reed-Perot interference filter and multi-media interference filter. First, the structure and principle 1. The weight of the - Perot interference filter This interference filter consists of two appropriate glass plates. The opposite surface of the glass plate is coated with a layer of partially reflective metal film, filled with a transparent medium between the two plates. This structure is called the Reed-Pello etalon, shown in Figure 1.