镧系光学玻璃.doc

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1、为使光学系统存在的像差降低到一定范围，需使用具有不同折射率和色散的光学玻璃。镧系光学玻璃具有特殊的折射率和色散，不仅可以降低像差，同时可以减少光学系统镜片的数量和重量。目前高质量的光学系统大都选用镧系光学玻璃。种类牌号ndnF-ncυdLaK11.659500.0115057.35LaK21.692110.0126954.54LaK31.746930.0146650.95LaK41.640500.0106660.10LaK61.693500.0129953.38LaK71.713000.0132553.83LaK81.720000.0142850.41LaK101.6511

2、30.0116555.89LaK111.664610.0121754.61LaK121.696800.0124056.18LaF11.693620.0141049.19LaF21.717000.0149747.89LaF31.744000.0165744.91LaF41.749500.0214234.99LaF61.757190.0158447.81LaF71.781790.0210837.09LaF101.788310.0166447.39LaSF011.785900.0177844.20LaSF031.806100.0196940.94LaSF0131.804400.0

3、203239.59LaSF0151.804000.0172646.58LaSF0161.772500.0155749.61ZLaF11.801660.0181144.26ZLaF21.802780.0171746.75ZLaF51.816000.0175146.60ZLaF561.806100.0242333.27ZLaF551.835000.0194342.97