前言光致变色是一种人们早就熟知的现象。米尔最先觉察到这种现象,他发现二硝基甲烷的钾盐受光照后会发生颜色的变化。费普松也发现过这种现象,他发觉涂颜料的门柱白天黑而夜晚白。后来,人们用“Photochromism”这个术语来描绘上述现象。该词由两部分组成:“Photo”(光)和“Chrom”(色),后缀“ism”表明系一种现象。光致变色现象有三个基本特征:光敏性、自发可逆性和颜色变化。在包括晶体、液体、气体在内的各种呈光致变色现象的有机、无机材料中,从机械性质、化学现象以及经多次变暗、复明循环而不疲劳等方面来看,无机光致变色玻璃最吸引人。光致变色玻璃可以是均质的,也可合有呈光致变 Introduction Photochromism is a phenomenon that people have long known. Mill was the first to detect this phenomenon, he found dinitromethane potassium salt by light changes will occur after the color. Festosong also found this phenomenon, he found the paint-coated goalposts black and white at night. Later, people use the term ”Photochromism“ to describe this phenomenon. The word consists of two parts: ”Photo“ and ”Chrom“, suffix ”ism" indicates a phenomenon. Photochromism has three basic characteristics: photosensitivity, spontaneous reversibility and color change. In various organic and inorganic materials that exhibit photochromism, including crystals, liquids, and gases, from the viewpoints of mechanical properties, chemical phenomena, and multiple darkening and fuming cycles without fatigue, Discolored glass is the most attractive. Photochromic glasses can be homogenous or photochromic