Objective lens for a microscope

Details Objective lens for a microscope Objective lens for a microscope

1998-03-06

2000-01-18

Epps, Georgia

Optical: systems and elements

Lens

Microscope objective

359802, G02B 2102

Patent

active

060162260

ABSTRACT:
An objective lens for a microscope including a first lens group and a second lens group. The first lens group is positioned far from a surface of an object and has a negative refractive power as a whole. The second lens group is disposed between the object and the first lens group and has a positive refractive power as a whole. The first lens group includes two compound lenses, each with a convex lens and a concave lens, and the second lens group has a single convex lens and compound lenses. The objective lens is composed to satisfy the following conditions:

REFERENCES:
patent: 4588264 (1986-05-01), Shimizu
patent: 5132845 (1992-07-01), Suzuki
patent: 5502596 (1996-03-01), Suzuki

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