Observation optical system

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专利权人:

Masayuki Mizusawa

发明人:

Masayuki Mizusawa

申请号：

US12099602

公开号：

US08456762B2

申请日:

2008.04.08

申请国别(地区):

US

年份:

2013

代理人:

摘要：

An observation optical system has a negative lens unit placed at the most object-side position an annular prism placed on the image side of the negative lens, having a reflecting surface on the negative lens side and an imaging lens unit arranged on the image side of the negative lens and the annular prism.

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中国工程科技知识中心

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