【摘要】 本文分析了用一次离子交换工艺制备的自聚焦透镜的径向折射率分布规律,计算了所能获得的最佳分布及工艺条件.并提出在熔盐中加Li~+及分阶段离子交换的新方法.计算表明,用改进后的新工艺制备的自聚焦透镜,其折射率分布可以得到明显的改善.更多还原

【Abstract】 In this paper, the law of radial index distribution in the lithium glass selfoc lens manufactured by one-step ion exchange technique has been analyzed. The optical distribution obtained with this method and its technical conditions have been derived. A new way of using molten salt with some Li+ and exchanging ions in more than one step has been proposed. Calculation shows that the selfoc lens manufactured with this new method has a greatly improved index distribution.更多还原