高折射率低密度光色玻璃的研究

Investigation for Photochromic Glasses of High Refractive Index and Low Density

普通眼镜玻璃的折射率为1.523,而高折射率光色玻璃是指折射率大于1.60、密度小于3～3.5 g/cm^3的玻璃,普通光色玻璃早在70年代中期国内已有不少学者作过大量的工作,80年代中期已商品化。高折射率、低密度玻璃国内于80年代后期有一些报导,而高折射率、低密度光色玻璃,国外在80年代后期发表过有关专利。

In this paper the photochromic glasses of high refractive index and low density are studied; the glasses composition and heat history to have an effect on photochromic properties are investigated.Experimental result have obtained an photochromic glass which is a refractive index glass for nd= 1.6 and density for 3.0 g/cm3.