Optical device
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United States of America Patent
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May 24, 2016
Grant Date -
Nov 6, 2014
app pub date -
Feb 12, 2014
filing date -
May 3, 2013
priority date (Note) -
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Abstract
An optical device includes a first lens frame bearing a first lens set and having a plurality of rods, a first cam barrel rotating to move the first lens frame along a first axis, a second lens frame bearing a second lens set and having a plurality of holes corresponding to the rods, and a second cam barrel rotatably disposed around the first cam barrel to rotate the first cam barrel and move the second lens frame along a second axis parallel to the first axis, wherein the first axis is substantially coincident with the second axis with the rods inserted into the holes.
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