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A 3D-CAMERA DEVICE COMPRISING A DIRT DETECTION UNIT
A 3D-CAMERA DEVICE COMPRISING A DIRT DETECTION UNIT
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机译:包括污垢检测单元的3D相机设备
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摘要
A 3D-camera device (1) having a Time-Of-Flight sensor (5) and a light guiding means (4) with a light transparent cover (3) and; - a light source (6) arranged to emit light (7) into the transparent cover (3), whereby at least a portion (10) of the emitted light (7) is reflected out through a second portion (3.1) of the transparent cover (3) by dirt (100) present on the outer surface (3.20) of the transparent cover (3), wherein; - the Time-Of-Flight sensor (5) is arranged to receive light (10) reflected by dirt (100) on the outer surface (3.20) of the transparent cover (3) and to output a signal (L) relative the amount of received reflected light (10), and; - a control unit (20) configured to determine the presence of dirt (100) on the outer surface (3.20) of the transparent cover (3) from the magnitude of the signal (L) from the Time-Of-Flight sensor (5).
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