On-axis control over scanning beam spot size and shape in electro-optical readers
A cylindrical lens is axially moved along an optical axis to control a shape and size of a laser beam spot that is scanned across a symbol to be read by an electro-optical reader.
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A cylindrical lens is axially moved along an optical axis to control a shape and size of a laser beam spot that is scanned across a symbol to be read by an electro-optical reader. |
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