OBJECT DETECTING SYSTEM FOR IMAGING-BASED BARCODE READERS
摘要
An apparatus includes a light emitting diode operative to emit mostly invisible light within an invisible bandwidth, and a scattering surface configured to scatter a first portion of the invisible light from the light emitting diode out of the window. The scattering surface is also partially transparent to allow a second portion of the invisible light from the light emitting diode to pass through the scattering surface and strike the reflector that is configured to reflect at least some of the second portion of the invisible light towards the window. The apparatus further includes a photodetector configured to detect returned invisible light from the target object.
申请公布号
WO2014058671(A1)
申请公布日期
2014.04.17
申请号
WO2013US63021
申请日期
2013.10.02
申请人
SYMBOL TECHNOLOGIES, INC.
发明人
HANDSHAW, DARRAN M.;DRZYMALA, MARK E.;GIORDANO, JOSEPH D.