是一种在太阳或其他光线照射时，颜色会随光线增强而变暗的玻璃，一般在温度升高时（如在阳光照射下）呈乳白色，温度降低时，又重新透明，变色温度的精确度能达到±1℃。
本文介绍了卤化银光致变色玻璃的研究现状。
The current research situation of photochromic glasses containing silver halide has been reviewed.
主要阐述了一步法生产光致变色夹层玻璃的方法及过程，介绍了生产中应注意的事项及生产设备。
This paper described the method and process of photochromic laminated glass production with single step, introduced some points for attention in the process and facilities for production.
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