求翻译：本学位论文阐述了光折变材料的研究进展，主要分析了光折变聚合物材料的特性和有机一无机纳米复合材料的性能，并且阐述了目前光折变材料在现实生活中的应用是什么意思？

This dissertation describes the progress of a photorefractive material, the main characteristics of photorefractive polymer materials and organic-inorganic nano-composites, and the photorefractive change materials in real life

This dissertation elaborated the reflection changes the material the research progress, mainly analyzed the reflection to change the polymer material the characteristic and the organic inorganic nanometer compound materials performance, and elaborated the present reflection changes the material in r