Optical device for increasing the apparent resolution of photosensor
First Claim
Patent Images
1. A dataform reading module, comprising:
- at least one photosensor;
a plurality of optics for focusing a respective image representing a portion of a dataform taken along a target line onto a respective one of a plurality of different zones of the at least one photosensor, at least two of the plurality of optics configured to focus an image of adjacent and partially overlapping portions of the dataform taken along the target line; and
an illuminating device for illuminating the dataformn.
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Abstract
A dataform reading module includes at least one photosensor providing a plurality of different zones for image capture. The reader module further includes a plurality of optics for focusing a respective image representing a portion of a dataform taken along a target line onto a respective one of the plurality of different zones. At least two of the plurality of optics are configured to focus an image of adjacent and partially overlapping portions of the dataform taken along the target line. An illuminating device included as part of the reading module is used for illuminating the dataform.
52 Citations
28 Claims
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1. A dataform reading module, comprising:
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at least one photosensor;
a plurality of optics for focusing a respective image representing a portion of a dataform taken along a target line onto a respective one of a plurality of different zones of the at least one photosensor, at least two of the plurality of optics configured to focus an image of adjacent and partially overlapping portions of the dataform taken along the target line; and
an illuminating device for illuminating the dataformn. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A dataform reader for reading a dataform, comprising:
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a hand-portable sized housing;
a reading module included within the housing, the reading module including;
a photosensor array having a plurality of different zones;
a plurality of optics for focusing a respective image representing a portion of the dataform along a target line onto a respective one of the plurality of different zones, at least two of the plurality of optics configured to focus an image of adjacent and partially overlapping portions of the dataform along the target line; and
an illuminating device for illuminating the dataform. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A method for reading a dataform using a dataform reading module, comprising the steps of:
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focusing a plurality of images of a dataform onto respective zones of a photosensor array, at least two of the images corresponding to adjacent and partially overlapping segments of the dataform taken along a target line; and
reconstructing a final image of the dataform taken along the target line from a combination of the plurality of images provided to the respective zones. - View Dependent Claims (21, 22, 23, 24, 25)
streaming together the plurality of images provided to the respective zones into a single image; and
discarding images of duplicate portions of the dataform stored in each of the respective zones.
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24. The method of claim 20, further including the step of illuminating the dataform prior to the step of focusing.
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25. The method of claim 24, wherein the step of illuminating is by way of a laser light.
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26. A dataform reading module, comprising:
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means for capturing images of a dataform;
means for focusing images of adjacent portions of the dataform onto respective different regions of the means for capturing, wherein the adjacent portions of the dataform partially overlap with one another; and
means for combining the images of the adjacent portions to a single image of the dataformn. - View Dependent Claims (27, 28)
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Specification