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US 2019/0171854 A1Published application
Highly efficient and eye-safe illumination unit for a barcode reader
AssigneeDatalogic IP Tech S.R.L.
InventorsKurt Vonmetz, Federico Canini
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Abstract
A system and method of imaging barcodes may include generating a first light beam from an illumination surface having first dimensions. The first light beam may be directed into an input aperture of an optical component to form a second light beam. The input aperture has second dimensions, where the first dimensions are at least as large as the second dimensions. The second light beam having irradiation spatially distributed across the second light beam may be projected to read a machine-readable indicia.
Claims20
A barcode reader, comprising:
- an illumination source having an illumination surface that illuminates from a surface area with first dimensions;
- a lens pipe having a tapered shape extending from a first end to a second end, the first end defining an input aperture having second dimensions that are at most equal to the first dimensions;
- and
- a projection lens disposed in front of the second end of said lens pipe, and configured to project the light from the illumination source that enters the input aperture of said lens pipe substantially along an optical axis defined by said projection lens.
1 more element
A method of imaging barcodes, comprising:
- generating a first light beam from an illumination surface having first dimensions;
- directing the first light beam into an input aperture of an optical component to form a second light beam, the input aperture having second dimensions, the first dimensions being at least as large as the second dimensions;
- and
- projecting the second light beam having irradiation spatially distributed across the second light beam to read a machine-readable indicia.
1 more element
Dependencies are inferred from the claim text.