Passive lens athermalization using liquid lens
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United States of America Patent
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May 22, 2018
Issued Date -
N/A
app pub date -
Jul 14, 2016
filing date -
Jul 14, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
An optical system includes a liquid lens and an adjustment structure. The liquid lens includes an optically-active region and an adjustment region that is not optically-active. The adjustment region has a volume that corresponds to an optical parameter of the optically-active region. The adjustment structure is configured to interface with the adjustment region. The adjustment structure includes a first portion having a first coefficient of thermal expansion and a second portion having a second coefficient of thermal expansion that differs from the first coefficient of thermal expansion. The first portion and the second portion are configured to collectively change the volume of the adjustment region throughout an operational temperature range of the optical system based on the first coefficient of thermal expansion of and the second coefficient of thermal expansion.
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