Lens unit for preventing lens surface being clouded

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12265276
APP PUB NO 20220171152A1
SERIAL NO

17535687

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A lens unit includes a first lens disposed on an object side in an optical axis direction, a plurality of image-side lenses (second lens through seventh lens) comprising a second lens facing the first lens on an image side in the optical axis direction and disposed on the image side with respect to the first lens, a lens barrel coaxial with the optical axis to hold the first lens and the plurality of image-side lenses radially inside, a first sealing member to seal a gap between the first lens and the lens barrel, and a second sealing member to seal a gap between an image side surface (flange surface) of the first lens and the lens barrel radially inside the first sealing member.

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Patent Owner(s)

Patent OwnerAddress
NIDEC SANKYO CORPORATION5329 SHIMOSUWA-MACHI SUWA-GUN NAGANO 393-8511

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shirotori, Toshio Nagano, JP 13 31
Yamamoto, Akinori Nagano, JP 70 611

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