Endoscope objective optical system

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United States of America Patent

PATENT NO 9622652
SERIAL NO

14824666

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Abstract

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An endoscope objective optical system comprises:

    a front group having a negative refractive power, a brightness diaphragm, and a back group having a positive refractive power in order from an object side, whereinthe front group is composed of a first group, which is a first lens which is a single lens and a second group, which is a single lens or a cemented lens having a negative refractive power;1

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Patent Owner(s)

Patent OwnerAddress
OLYMPUS CORPORATION43-2 HATAGAYA 2-CHOME SHIBUYA-KU TOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Igarashi, Tsutomu Tokyo, JP 53 1370

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