Driver for liquid crystal lens, imaging apparatus and temperature controlling method thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9250457
APP PUB NO 20130148059A1
SERIAL NO

13687591

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A driver for a liquid crystal lens, an imaging apparatus and a temperature controlling method thereof, include: a liquid crystal lens which adjusts a focal length according to a voltage applied thereto; a lens driver which applies the voltage to the liquid crystal lens; a sensor driver which detects a temperature of the liquid crystal lens, compensates for the detected temperature, and determines whether the compensated temperatures maintains a preset range for the driver for the liquid crystal lens to perform a control operation; and a heater driver which, according to the determination by the sensor driver, controls heat generation of the liquid crystal lens to maintain a temperature of the liquid crystal lens in the preset range. Thus, the driver detects a temperature of the liquid crystal lens accurately by compensating for a resistance value from the liquid crystal lens to thereby maintain stability of the imaging apparatus.

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Patent Owner(s)

Patent OwnerAddress
DONGWOON ANATECH CO LTD9F 2351 NAMBUSUNHWAN-RO SEOCHO-GU SEOUL 06713

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jin, Jung-ho Hwaseong, KR 2 10
Oh, Eun-tack Seongnam, KR 1 9
Park, Jung-wan Seoul, KR 1 9

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