Patent · US Expired

Five-component microscope objective

US4417787A · kind A · utility

4Cited by

4References

1Claims

0Family size

Assignee

C. Reichert Optische Werke A.G. · AT

Inventor

Lambert Danner · Wetzlar, DE

Key dates

Filing date	Nov 16, 1981
Grant date	Nov 29, 1983
Priority date	—
Expiry date	Nov 16, 2001

Classification

Technology area (CPC G)Physics
CPC primaryG02B21/02
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An infinity-corrected, semi-apochromatic microscope objective having an N.A. of 0.85 has five elements and provides a magnification of 50.times. when used with a telescope objective having an effective focal length (efl) of 183 mm.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.