The QRD1113/14 reflective sensor consists of an infrared emitting diode and an
NPN silicon photodarlington mounted side by side in a black plastic housing. The
on-axis radiation of the emitter and the on-axis response of the detector are
both perpendicular to the face of the QRD1113/14. The photodarlington responds
to radiation emitted from the diode only when a reflective object or surface is
in the field of view of the detector.
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Data Sheet