| 摘要 |
PURPOSE:To enable various changes in refractive index and dispersion characteristics of a base. CONSTITUTION:A sol is prepared by adding two or more kinds of metal seeds each as metal alkoxide to a silicon alkoxide. Then the sol is changed into a gel and then dipped in such an eluting soln. having significantly different elusion rate for each metal component except for silicon in the gel. By properly selecting the kind and amt. of metal seed, refractive index and dispersion characteristics of the base can be veriously changed. Then the gel is dried and sintered to obtain on optical element having distributed refractive index. |
