Zoom lens and imaging apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9568715
APP PUB NO 20160004052A1
SERIAL NO

14855436

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Abstract

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A zoom lens consists of, in order from the object-side, a first lens-group having positive refractive power, and which is fixed during magnification change, a second lens-group having negative refractive power, and which moves during magnification change, a third lens-group having positive refractive power, and which is fixed during magnification change, a fourth lens-group having positive refractive power, and which moves during magnification change, and a fifth lens-group having negative refractive power, and which moves during magnification change. The first lens-group consists of, in order from the object-side, a front group having negative refractive power, a reflection member that bends an optical path and a rear group having positive refractive power. The fourth lens-group includes at least a cemented lens of a positive lens and a negative lens, and the following conditional expression (1) is satisfied:

description='In-line Formulae' end='lead'0.8fw  (1).description='In-line Formulae' end='tail'

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Patent Owner(s)

  • FUJIFILM CORPORATION

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tomioka, Ryoko Saitama-ken, JP 19 90

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