【摘要】 <正> 为了发展特殊色散玻璃新品种,满足光学设计在复、超消色差镜头设计中对光学玻璃的要求;研究玻璃结构组成和部分色散的变化规律,是一项很有意义的工作。氟磷光学玻璃具有特殊的色散性能,由于该类玻璃的研制难度较大,直到1970年才有商品出售,它对高精度、高质量的镜头设计起了重要作用,因而有第三代光学玻璃之称。在国内外光学玻璃商品目录中,氟磷光学玻璃已形成氟冕及长冕二大类别,可是对基础氟磷玻璃的折射率、色散、阿贝数的研究工作却远远不如硅酸盐、硼酸盐和磷酸盐玻璃。更多还原

【Abstract】 LgSK528/767 (vy,F = 14.6) and FK486/817 (vg,F = 19.0) are taken as the compositions of the base glasses in our work. The effects of about 30 compounds such as fluorides, phosphates, etc. on the partial dispersions have been studied and the quantitive results have been obtained.Finally according to Sellmeir’s dispersive theory, the relationship between the partial dispersions and components of the optical fluorophosphate glasses has been discussed with dispersive equations, and satisfactory results have been obtained. The partial dispersive coefficients given by Gan Fuxi were substituted into the formula for computing the resultant partial dispersions of the glasses. We found that the computed results corresponds to our experimental data. The results proved that the computing system is valuable and can provide theoretical basis for developing new types of glasses with anomalous partial dispersions.更多还原