Methods, systems, and apparatuses for scanning and decoding direct part marking indicia

A method for reading indicia, the method comprising:

• generating, by a plurality of collimating optical elements, collimated light beams based on light beams received from a plurality of light sources at different wavelengths;
• splitting, by a diffractive optical element of a plurality of diffractive optical elements, a collimated light beam generated by one of the plurality of collimating optical elements into at least two sets of refracted light beams at two incident angles relative to a DPM indicia, in accordance with two diffraction orders;
• operating, by a DPM illumination system, an indicia reading system in a bright-field illumination mode in a far-field area based on a first set of refracted light beams with a zero-diffraction order and a first incident angle relative to the DPM indicia;
• operating, by the DPM illumination system, the indicia reading system in a dark-field illumination mode in a near-field area based on a second set of refracted light beams with a first-diffraction order and a second incident angle relative to the DPM indicia;
• generating, by an image sensor, image data of the DPM indicia based on a set of reflected light beams received from the DPM indicia in accordance with the operation of the indicia reading system in the bright-field illumination mode and/or the dark-field illumination mode;
• and
• reconstructing, by an image processing module coupled to the image sensor, a second image based on the generated image data in an instance in which the image sensor is a color sensor.