Optical design of non-CaF2 middle and low power flat-field apochromatic metallographic microobjective

摘要

Based on the optical apochromatic system theory and referencing photographic objective to make similar innovation, the middle and low power apochromatic metallographic microobjective is constructed. In the design of low power objective,rntriplet photographic objective(+, -, +) is transplanted and applied to 5×objective. Referencing parameters of Orthometarrnprocessor objective and complication of triplet graphic objective are applied to middle power objective. The 8×and 10× objectives with flat-field and apochromatic can be designed successfully using iterative optimization in OSLO.