Imaging lens

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9891410
SERIAL NO

15387860

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Abstract

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An imaging lens includes a first lens having negative refractive power; a second lens having positive refractive power; a third lens having positive refractive power; and a fourth lens, arranged in this order from an object side to an image plane side. The second lens is arranged to face the third lens. The first lens has a focal length f1 and the fourth lens has an Abbe's number νd4 so that the specific conditional expressions are satisfied.

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Patent Owner(s)

Patent OwnerAddress
TOKYO VISIONARY OPTICS CO LTD7F MJ BLDG 1-7-4 MINATO CHUO-KU TOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hirano, Hitoshi Nagano, JP 264 2221
Kubota, Kenichi Nagano, JP 193 1554
Kubota, Yoji Nagano, JP 174 1387
Yonezawa, Tomohiro Tochigi, JP 81 766

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