Two component microscope condenser

Details Two component microscope condenser Two component microscope condenser

G - Physics

02

B

88/99

G02B 21/08 (2006.01)

Patent

CA 1079105

ABSTRACT OF THE DISCLOSURE A two-component microscope condenser consisting of a biconvex positive doublet as the first component and a convex- plano positive doublet as the second component has excellent correction for spherical aberration and coma with significant reduction of pupillary aberration. The front pupil plane of the condenser is located external to the glass in order to provide utility of the condenser in microscope techniques requiring positioning of optical elements in the pupil plane. A negative lens may be combined with one embodiment of the invention to provide a longer working distance. - 1 -

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