【摘要】 首先利用电磁场理论分析光学导纳和光的偏振问题，然后讨论光波入射到贮光薄膜上时，光的反射和透射问题，从而得到贮光薄膜所能吸收的太阳辐射能量；最后探讨ＳｒＡｌ２Ｏ４：Ｅｕ贮光薄膜的贮光原理，并给出该贮光薄膜的发射光谱曲线，证明利用光致发光方法的贮能效率高于利用光电、光热转换方法的贮能效率．更多还原

【Abstract】 This paper first analyses the problems of optical admittance and polarization with ele ctromagnetic field theory.then light refletion and transmission are discussed when sun light incidences to thin film and the energy absorbed by the thin film can be obtained.Finally,the light storing principle of SrA1204:Fu thin film and its emission spectrum are studied.It is proved that the efficiency of energy storing of photo lumiescence is higher than that of photo electricity conversion and photo thermo conversion.更多还原