Sensor Head - HID Lumidigm M Series Mechanical Integration Manual

Figure 4: PD
illumination pattern,
front view

3.2 Sensor Head

The M30x and the M31x product lines use the same sensor head. Figure 6 shows a cutaway
view of the M3xx sensor head showing the platen area, enclosure, and an assembly
consisting of a PCB with the imager and LEDs and a plastic element that contains lenses for
the LEDs and the imager itself. On the interior of the enclosure are several mirrors which
are used with the LED lenses to evenly illuminate the platen surface.
Figure 6: Sensor head detail
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Lumidigm M-Series M3xx Modules Mechanical Integration Guide, PLT-02217, Rev. A.0
Figure 5: PD illumination pattern,
side view
December 2014