Immersion microscope objective

Details Immersion microscope objective Immersion microscope objective

1998-08-14

1999-11-02

Sugarman, Scott J.

Optical: systems and elements

Lens

Microscope objective

G02B 2102

Patent

active

059781475

ABSTRACT:
A high-magnification immersion microscope objective 10 capable of being fabricated relatively easily, and wherein field flatness is well-corrected and the image quality is good even at the periphery of the field. The microscope objective comprises, objectwise to imagewise, a first lens group G1 having positive refractive power, a second lens group G2 having positive refractive power, and third lens group G3 having negative refractive power. First lens group includes four single positive lenses (L11 to L14), and second lens group G2 has a plurality of cemented lenses (L21 and L22). The microscope objective preferably satisfies at least one of a number of design conditions.

REFERENCES:
patent: 5636058 (1997-06-01), Amemiya

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