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

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United States of America Patent

PATENT NO 10650205
APP PUB NO 20200104556A1
SERIAL NO

16146462

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Various embodiments described herein relates to indicia reading system for scanning and decoding direct part markings (DPM) indicia. The indicia reading system includes a plurality of collimating optical elements that generate collimated light beams. A plurality of diffractive optical elements is tuned to split a corresponding collimated light beam into at least two sets of refracted light beams at two incident angles relative to a DPM indicia. A first set of refracted light beams with a zero-diffraction order and a first incident angle causes a bright-field illumination in a far-field area. A second set of refracted light beams with a first-diffraction order and a second incident angle causes a dark-field illumination in a near-field area. An image sensor generates image data of the DPM indicia based on a set of reflected light beams received from the DPM indicia in accordance with one of the bright-field illumination or the dark-field illumination.

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Patent Owner(s)

  • HAND HELD PRODUCTS, INC. DOING BUSINESS AS HONEWELL SCANNING & MOBILITY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Basso, Jean-Luc Montbrun-lauragais, FR 5 15
Gillet, Alain Galan, FR 37 5209

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