Imaging lens

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9798113
SERIAL NO

15268825

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An imaging lens includes a first lens having positive refractive power; a second lens; a third lens; a fourth lens; a fifth lens; and a sixth lens having negative refractive power, arranged from an object side to an image plane side. The first lens has an object-side surface and an image plane-side surface having positive curvature radii. The third lens has an object-side surface and an image plane-side surface having positive curvature radii. The fourth lens has an object-side surface and an image plane-side surface having negative curvature radii. The sixth lens is formed so that at least one of an object-side surface and an image plane-side surface is an aspherical surface and has at least one inflexion point. The first lens and the second lens have a specific composite focal length.

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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
Ise, Yoshio Tochigi, JP 46 386
Kubota, Kenichi Nagano, JP 193 1554
Kubota, Yoji Nagano, JP 174 1387
Noda, Sayuri Tochigi, JP 41 506

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