対物レンズ及びそれを備えた観察装置

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专利权人:

オリンパス株式会社

发明人:

高田 圭輔

申请号：

JP2014551159

公开号：

JP6205369B2

申请日:

2013.12.06

申请国别(地区):

JP

年份:

2017

代理人:

摘要：

An objective lens including a first lens group immovable in changing magnification from a normal observation state to a close-up observation state, a second lens group arranged nearer to the image side than the first lens group and moving along the optical axis in the change of magnification, a third lens group arranged nearer to the image side than the second lens group and immovable in the change of magnification, and an aperture stop arranged between the second lens group and an image plane and immovable in the change of magnification, and the objective lens satisfying the following condition: 1.24

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/