OPTICAL PROXIMITY SENSOR WITH A SELF-INTEGRATED BARRIER

    公开(公告)号:US20180292568A1

    公开(公告)日:2018-10-11

    申请号:US15616145

    申请日:2017-06-07

    Applicant: DAPA, INC.

    Inventor: TING-YI CHEN

    Abstract: A complex optical proximity sensor has a vertical-cavity surface emitting laser (VCSEL), an ambient lights detection chip, and a proximity sensor (PS) arranged in linear alignment to form a self-integrated barrier within the structure. The PS only receives lights with a first wavelength and a first energy and the ambient lights detection chip solely receives lights with a second wavelength and a second energy to prevent the VCSEL from interfering with the PS. Meanwhile, the arrangement has the ambient lights detection chip disposed in a middle section of an oblong opening to maximize a detection angle of ambient lights.

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