Imaging lens

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11442250
APP PUB NO 20200393650A1
SERIAL NO

17004053

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An imaging lens includes a first lens group having positive refractive power; a second lens group; and a third lens group having negative refractive power, arranged in this order from an object side to an image plane side. The first lens group includes a first lens, a second lens, and a third lens. The second lens group includes a fourth lens and a fifth lens. The third lens group includes a sixth lens and a seventh lens having negative refractive power. The first lens is formed in a meniscus shape at a paraxial region thereof. The fourth lens is formed in a meniscus shape at a paraxial region thereof. The seventh lens is formed in a meniscus shape at a paraxial region thereof. The seventh lens has a specific focal length. The second lens is disposed away from the third lens by a specific distance.

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Patent Owner(s)

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

International Classification(s)

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Inventor(s)

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

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