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This paper presents an analytical model that allows calculation of the intensity distribution of beams emitted by laser diodes, focused by a thin lens and truncated by a circular aperture. The… (More)
L'invention concerne un procede de decodage d'un code optique bidimensionnel forme d'un nombre defini de mots de code consistant, si le decodage du code sur la base d'une image acquise unique n'a pas… (More)
Barcodes are a mature technology which is widely used in the automatic identification field. Most barcode symbologies adopt a check digit to increase the reliability of the reading process.… (More)
This paper presents an analytical model to evaluate both the longitudinal and the transversal intensity distributions of beams emitted by laser diodes, focused by a thin lens and diffracted by a… (More)