Imaging lens composed of five optical elements

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United States of America Patent

PATENT NO 11829004
APP PUB NO 20210364737A1
SERIAL NO

17392714

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Abstract

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An imaging lens comprises five optical elements, in order from an object side to an image side, comprising, a first lens as a first optical element having positive refractive power, a second lens as a second optical element having negative refractive power and a convex surface facing the object side near an optical axis, a third lens as a third optical element having the refractive power, and a fourth lens as a fourth optical element having refractive power and the convex surface facing the object surface near the optical axis, wherein and an aberration correction optical element as a fifth optical element are arranged between said third lens and said fourth lens, said aberration correction optical element has both flat surfaces near the optical axis and aspheric surfaces.

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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
Fukaya, Hisao Sukagawa, JP 90 488

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