Patent · US Active

Microscope objective lens

US9170413B2 · kind B2 · utility

0Cited by

1References

8Claims

0Family size

Assignee

OLYMPUS CORPORATION · JP

Inventors

Yoshimasa Suzuki · Ibaraki, JP
Kazuo Kajitani · Tokyo, JP
Hisashi Goto · Ebina, JP
Hisashi Ode · Tokyo, JP

Key dates

Filing date	Jan 31, 2013
Grant date	Oct 27, 2015
Priority date	—
Expiry date	Nov 7, 2033

Classification

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

Abstract

A microscope objective lens has an aspheric-surface lens, and a first lens nearest to an object side is a negative lens. It is desirable that at least any one surface of the first lens nearest to the object side is an aspheric surface. Moreover, it is desirable that the microscope objective lens satisfies the following conditional expression (1)−20<f1/f<−0.1 (1)

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