Apparatus for auto focus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9857556
APP PUB NO 20170357077A1
SERIAL NO

15401177

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Disclosed is an apparatus for auto focus, which includes a first frame having a magnet, a second frame having an auto focus (AF) coil for moving the first frame in an optical axis direction and a yoke giving an attractive force to the magnet, and a plurality of balls arranged in the optical axis direction and located between the first frame and the second frame so that the first frame and the second frame are maintained to be spaced apart from each other. An entire height of the plurality of balls is equal to or higher than a height of the magnet on the basis of the optical axis direction.

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Patent Owner(s)

  • JAHWA ELECTRONICS CO., LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kim, Hee Seung Seoul, KR 86 395
Kim, In Soo Gyeonggi-do, KR 88 324
Takashima, Masahiro Seoul, KR 8 28

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