Microscope condenser

Patent

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350175ML, 350231, G02B 906, G02B 2102, G02B 1318

Patent

active

040024067

ABSTRACT:
A microscope condenser of the Abbe type has the optical characteristics of the biconvex singlet followed by the convex-plano singlet improved by making the first surface of the biconvex singlet aspherical. The aspherical surface substantially reduces spherical aberration and coma as well as pupillary aberration of the condenser.

REFERENCES:
patent: 3355234 (1967-11-01), Muller
patent: 3598474 (1971-08-01), Shoemaker

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