Microscope objective lens

Details Microscope objective lens Microscope objective lens

1997-10-30

2000-10-03

Epps, Georgia

Optical: systems and elements

Lens

Microscope objective

359784, G02B 2102, G02B 912

Patent

active

061281395

ABSTRACT:
An achromat-class microscope objective lens, which has a magnification of about 10 times and in which various types of aberration are corrected in peripheral portions of an image, includes a first lens group having a cemented lens composed of a double-concave lens and a double-convex lens, a second lens group having a positive lens, and a third lens group having a cemented lens composed of a double-concave lens and a double-convex lens. The first, second and third lens groups are arranged in that order from an object. The microscope objective lens satisfies certain predetermined expressions.

REFERENCES:
patent: 5132845 (1992-07-01), Suzuki
patent: 5191473 (1993-03-01), Kashima et al.
patent: 5216545 (1993-06-01), Saito
patent: 5532878 (1996-07-01), Suenaga et al.
patent: 5729391 (1998-03-01), Ito
patent: 5828498 (1998-10-01), Sekiya et al.
patent: 5889617 (1999-03-01), Yamada et al.

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