Lens Assembly
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United States of America Patent
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Issued Date -
Sep 15, 2022
app pub date -
Mar 2, 2022
filing date -
Mar 9, 2021
priority date (Note) -
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Abstract
A lens assembly includes a first lens group, a second lens group, a third lens group, a fourth lens group, a fifth lens group, and a reflective element. The first lens group is with positive refractive power. The second lens group is with negative refractive power. The third lens group is with positive refractive power. The fourth lens group is with negative refractive power. The fifth lens group is with positive refractive power. The reflective element includes a reflective surface. A light from an object side sequentially passes through the first lens group, the second lens group, the third lens group, the fourth lens group, and the fifth lens group to a second side. The reflective element is disposed between a first side and the second side. Intervals of the lens groups are changeable, so that the lens assembly can change the effective focal length.
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