西铂莱恩 |
2011-09-16 14:20 |
glass selection
Glass selection tends to be both a science and an art. It is the intent of this paper to remove the .M3]\I u "mystique" surrounding glass selection, primarily based on the chromatic properties of the glass, [)K?e!c8 and to show via careful parametric analyses how we can optimally select glasses for lenses of )tB:g.2k different f/numbers, spectral bands, and performance requirements. The important roles of T#ktC0W]h refractive index and Abbe number as well as partial dispersion will be considered. Using the #\15,!*a= SCHOTT glass map, six separate and identifiable regions along with glasses within each region ;?-A4!V, will be discussed. The goal for this paper is to make glass selection easier to understand.
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