Barcode reading mechanism and barcode reading method
AssigneeNEC Corporation
InventorToshimitsu Kawasaki
Life of this patent
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Abstract
The present invention includes a reading unit having a light emitting portion for irradiating a barcode with irradiation light and a light receiving portion for receiving reflected light of the irradiation light from the barcode, a supporting member for turnably supporting the reading unit on a rotating shaft so that the position of the optical axis of the irradiation light is moved in the length direction of bars constituting the barcode, and a roller and a slanting surface for moving the optical axis of the irradiation light in the bar length direction by turning the reading unit.
Claims12
A barcode reading mechanism comprising:
- a reading unit including a light emitting portion for irradiating a barcode with irradiation light and a light receiving portion for receiving reflected light of the irradiation light from the barcode;
- unit supporting mechanism for turnably supporting the reading unit so that a position of an optical axis of the irradiation light is moved in a length direction of bars constituting the barcode;
- and
- optical axis moving mechanism for moving the optical axis of the irradiation light in the bar length direction by turning the reading unit.
A barcode reading method comprising:
- reading a barcode while moving an optical axis of irradiation light in a length direction of bars constituting the barcode by turning a reading unit including a light emitting portion for irradiating the barcode with the irradiation light, and a light receiving portion for receiving reflected light of the irradiation light from the barcode about a rotating shaft.
A barcode reading mechanism comprising:
- a reading unit including a light emitting portion for irradiating a barcode with irradiation light and a light receiving portion for receiving reflected light of the irradiation light from the barcode;
- unit supporting means for turnably supporting the reading unit so that a position of an optical axis of the irradiation light is moved in a length direction of bars constituting the barcode;
- and
- optical axis moving means for moving the optical axis of the irradiation light in the bar length direction by turning the reading unit.
A barcode reading method comprising:
- reading a barcode while moving an optical axis of irradiation light in a length direction of bars constituting the barcode by turning a reading unit including a light emitting portion for irradiating the barcode with the irradiation light, and a light receiving portion for receiving reflected light of the irradiation light from the barcode about a rotating shaft.
Dependencies are inferred from the claim text.