ROTARY ADJUSTER WITH IMPROVED OPTICAL ROTARY POSITION DETECTION

    公开(公告)号:US20180143521A1

    公开(公告)日:2018-05-24

    申请号:US15802047

    申请日:2017-11-02

    Applicant: PREH GMBH

    Abstract: The present disclosure relates to a rotary adjuster, including: a housing, a rotary knob mounted in a rotatable manner about a rotation axis (A) on the housing; an optical detection device for detecting a rotary position of the rotary knob and a coding shutter moving synchronously with the rotary knob, wherein the detection device has an optical transmitter and an array of optical receivers, and wherein the coding shutter and the detection device are designed to detect the rotary position of the rotary knob by means of the number of the receivers of the array illuminated by the transmitter and/or by means of an illumination intensity of one or more receivers of the array.

    OPTICAL SENSOR APPARATUS WITH ADDITIONAL CAPACITIVE SENSORS

    公开(公告)号:US20180143709A1

    公开(公告)日:2018-05-24

    申请号:US15736117

    申请日:2016-05-19

    Applicant: PREH GMBH

    Abstract: The present disclosure relates to a sensor device for arrangement in a motor vehicle, including: a transmitting unit for emitting an optical signal into a space region of a passenger compartment of the motor vehicle; a receiving unit for sensing the optical signal; an evaluation unit for assigning a switching function and/or controlling function to the reflected optical signal; a cover which is transmissive with respect to the optical signal and disposed between the passenger compartment and the transmitting unit; and further, a capacitive sensor with at least one electrode for generating a measuring capacitance sensing the passenger compartment at least in some portions, and means for detecting a capacitance change of the measuring capacitance; and wherein the evaluation unit is further designed to vary the switching function and/or controlling function and/or to vary the transmitting power of the transmitting unit in accordance with the capacitance change.

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