electrical signal the signal processing circuitry 28 includes a digitizer and a decoder both operating under the control of a controller or microprocessor to process the signal and extract the data encoded in the symbol fig2 is identical to fig1 except in the following respects a micro electromechanical systems mems component 40 is positioned in the outgoing path of the light beam and replaces the larger scan mirror 36 and the motor drive circuit 38 the component 40 has an outer reflecting surface and hence serves as a scan mirror for reflecting the incident light beam focused by the focusing optics 35 toward the symbol 24 due to the miniature size of the mems mirror 40 it cannot reliably serve as a collector and hence the photodetector 27 is moved to face the window 30 and in effect u201c stare u201d at the symbol fig2 generally illustrates a hand held mems based non retro collective reader the mems mirror 40 can be made to resonate at a desired frequency either in one direction or in two directions the resonant frequency may be induced electronically or mechanically the mems mirror 40 preferably has a polished or highly reflective surface such as a silvered surface the mirrored surface may be a 1 5 mm diameter silvered circular surface and an applied drive voltage may be in the 12 volt range that would result in oscillations of approximately 500 hz by 10 hz as shown in fig3 and 4 the same reference numerals have been used to identify the light source 26 preferably a laser diode for emitting a laser beam in the red spectral.