Image sensor based optical reader
First Claim
Patent Images
1. A bar code reading apparatus comprising:
- an imaging assembly including a two dimensional solid state image sensor and imaging optics focusing an image onto said solid state image sensor, the bar code reading apparatus having a field of view, the apparatus being configured to capture image data and process such image data for decoding of decodable indicia;
an illumination assembly including at least one light source for projecting illumination pattern light toward a target corresponding to said field of view;
a user interface enabling a user to select between a first mode of operation wherein the apparatus is optimized for reading black-on-white decodable indicia, and a second mode of operation wherein the apparatus is optimized for reading red-on-white decodable indicia,wherein said apparatus is configured so that when said first mode is selected said illumination pattern light projected by said illumination assembly for reading decodable indicia is narrow band illumination within a first narrow band; and
wherein said apparatus is further configured so that when said second mode is selected said illumination pattern light projected by said illumination assembly for reading decodable indicia is light within a second band of wavelengths wider than said first narrow band, and wherein said bar code reading apparatus is configured to decode decodable indicia whether said first mode or said second mode is selected.
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Abstract
An optical reader can include an image sensor. In one embodiment an optical reader can be configured to have different operating modes, the different operating modes optimizing the reader for reading different indicia. In another embodiment an optical reader can comprise a multiple color emitting light source. In another embodiment an optical reader can be provided in a specialized form factor including an enlarged head portion and an elongated body portion extending from the head portion.
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Citations
21 Claims
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1. A bar code reading apparatus comprising:
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an imaging assembly including a two dimensional solid state image sensor and imaging optics focusing an image onto said solid state image sensor, the bar code reading apparatus having a field of view, the apparatus being configured to capture image data and process such image data for decoding of decodable indicia; an illumination assembly including at least one light source for projecting illumination pattern light toward a target corresponding to said field of view; a user interface enabling a user to select between a first mode of operation wherein the apparatus is optimized for reading black-on-white decodable indicia, and a second mode of operation wherein the apparatus is optimized for reading red-on-white decodable indicia, wherein said apparatus is configured so that when said first mode is selected said illumination pattern light projected by said illumination assembly for reading decodable indicia is narrow band illumination within a first narrow band; and wherein said apparatus is further configured so that when said second mode is selected said illumination pattern light projected by said illumination assembly for reading decodable indicia is light within a second band of wavelengths wider than said first narrow band, and wherein said bar code reading apparatus is configured to decode decodable indicia whether said first mode or said second mode is selected. - View Dependent Claims (2, 3, 4, 5)
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6. A bar code reading apparatus comprising:
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an imaging assembly including a two dimensional solid state image sensor and imaging optics focusing an image onto said solid state image sensor, the bar code reading apparatus having a field of view, the apparatus being configured to capture image data and process such image data for decoding of decodable indicia; an illumination assembly including at least one light source for projecting illumination pattern light toward a target corresponding to said field of view; a user interface enabling a user to select between a first mode of operation wherein the apparatus is optimized for reading black-on-white decodable indicia, and a second mode of operation wherein the apparatus is optimized for reading red-on-white decodable indicia, wherein said apparatus is configured so that when said first mode is selected said illumination pattern light projected by said illumination assembly for reading decodable indicia is light of a first color; and wherein said apparatus is further configured so that when said second mode is selected said illumination pattern light projected by said illumination assembly for reading decodable indicia is light of a second color different from said first color and wherein said bar code reading apparatus is configured to decode decodable indicia whether said first mode or said second mode is selected. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A bar code reading apparatus comprising:
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an imaging assembly including a two dimensional solid state image sensor and imaging optics focusing an image onto an active surface of said solid state image sensor, the bar code reading apparatus having a two dimensional field of view, the apparatus being configured to capture image data and process such image data for decoding of decodable indicia; an illumination assembly including at least one light source for projecting illumination pattern light toward a target corresponding to said field of view; a user interface enabling a user to select between a first “
standard bar code”
mode of operation wherein the apparatus is optimized for reading black-on-white decodable bar codes, and a second mode of operation wherein the apparatus is optimized for reading bar codes other than standard black-on-white bar codes,wherein said apparatus is configured so that when said first mode is selected said illumination pattern light projected by said illumination assembly for reading standard bar codes is light of a first color; and wherein said apparatus is further configured so that when said second mode is selected said illumination pattern light projected by said illumination assembly for reading decodable indicia is light of a second color different from said first color and wherein said bar code reading apparatus is configured to decode decodable indicia whether said first mode or said second mode is selected. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification