Optical module and optical device applicable to optical module
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United States of America Patent
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Oct 18, 2016
Grant Date -
Dec 3, 2015
app pub date -
Nov 20, 2012
filing date -
Nov 8, 2012
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Abstract
An optical module and an optical device applicable to the optical module, wherein the optical module includes a laser emission unit, a laser reception unit, a video detector and an optical assembly, the optical assembly including: a band-pass device F1 with a small-angle incidence filter sheet, wherein among optical signals transmitted to F1 via a common port of F1, the optical signal in a first optical wavelength band is passed by the small-angle incidence filter sheet and output to the video detector via the passing port thereof; and the optical signals in other bands are reflected by the small-angle incidence filter sheet and output via the reflection port thereof; a filter sheet F2 configured to pass the optical signal emitted by the laser emission unit to the reflection port of F1 and to reflect the optical signal, received by the laser reception unit, output via the reflection port of F1.
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