Araujo R J
Appl Opt. 1968 May 1;7(5):781-6. doi: 10.1364/AO.7.000781.
Glasses containing small particles of silver halide are caused to darken by the action of uv light. Fading occurs when the exciting light source is removed and is often enhanced by irradiation with visible light. It is shown that simultaneous optical and thermal bleaching can be separated mathematically and that optical bleaching is a first order process. A model for thermal bleaching based on diffusion is consistent with rate studies and qualitatively explains the dependence of the fading rate on the darkening conditions.
含有卤化银小颗粒的眼镜会因紫外线的作用而变黑。当激发光源移除时会发生褪色，并且通常通过可见光照射而增强。结果表明，同时进行的光学和热漂白可以在数学上分离，并且光学漂白是一级过程。基于扩散的热漂白模型与速率研究一致，并定性地解释了褪色速率对变黑条件的依赖性。
