Liquid-crystal varifocal lens and focal length control method

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United States of America Patent

PATENT NO 10481429
APP PUB NO 20180157107A1
SERIAL NO

15711445

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Abstract

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A liquid-crystal varifocal lens includes a liquid crystal lens, and an ultrasonic transducer for generating an ultrasonic wave with a frequency that matches a resonant frequency of the liquid crystal lens. The ultrasonic transducer generates flexural oscillation in the liquid crystal lens such that the flexural oscillation has a vibration intensity decreasing continuously from the center to the circumference of a liquid crystal layer, whereby the thickness of the liquid crystal layer is changed, with the result that the orientation of the liquid crystal molecules is changed.

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Patent Owner(s)

Patent OwnerAddress
THE DOSHISHAKYOTO 602-8580

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Koyama, Daisuke Kyoto, JP 16 153
Shimizu, Yuki Kyoto, JP 49 329

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