Lens apparatus, image pickup apparatus, processing apparatus, and camera apparatus

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United States of America Patent

PATENT NO 12038673
APP PUB NO 20230046807A1
SERIAL NO

17974821

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Abstract

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Provided is a lens apparatus attachable and removable to a camera apparatus, the lens apparatus comprising a communication device configured to transmit, to an external device, information for light amount compensation of image data obtained by image pickup in the camera apparatus, in which the information includes information of a coefficient A0 of a term of 0-th-order with respect to an image height in a polynomial of n-th-order with respect to the image height, and in which a conditional expression

description='In-line Formulae' end='lead'0.7<A0(Z)×(Fw/F(Z))2<1.3description='In-line Formulae' end='tail'

is satisfied where A0(Z) represents the coefficient A0 at a zoom state Z, F(Z) represents an effective F-number at the zoom state Z, and Fw represents an effective F-number at a wide angle end.

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Patent Owner(s)

Patent OwnerAddress
CANON KABUSHIKI KAISHATOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kinoshita, Kei Saitama, JP 17 76
Nakamura, Tomoyuki Kanagawa, JP 128 1379
Sakuma, Koichi Kanagawa, JP 6 6

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