METHODS FOR AUTOMATICALLY IMAGING BARCODES
First Claim
Patent Images
1. A method comprising:
- automatically obtaining a first image of a two dimensional direct part marking barcode, said first image obtained via a barcode pistol grip barcode reader that comprises a camera, said camera defining a camera axis, said barcode reader comprising an on-axis lighting module that comprises first set of light emitting diodes (LEDs) having a first emitted color, said on-axis lighting module adapted to direct light on an on-axis lighting direction that is approximately collinear with said camera axis, said barcode reader comprising an off-axis lighting module that is substantially mirror-less, filter-less, and lens-less, a distance between said off-axis lighting module and said camera adjustable, said off-axis lighting module comprising a second set of LEDs having a second emitted color, said off-axis lighting module adapted to direct light in an off-axis lighting direction that intersects said camera axis at an adjustable angle, said adjustable angle less than approximately fifty five degrees, responsive to a pull of said trigger, said barcode reader adapted to automatically and sequentially obtain a first image, a second image, and a third image of said two dimensional direct part marking barcode, said first image obtained with only said on-axis lighting module illuminated, said second image obtained with only said off-axis lighting module illuminated, said third image obtained with both said on-axis lighting module and said off-axis lighting module illuminated simultaneously.
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Abstract
Certain exemplary embodiments can comprise a method, which can comprise automatically obtaining an image of a barcode. The image can be obtained via a barcode reader. The barcode reader can comprise a camera. The camera can define a camera axis. The barcode reader can comprise a lighting module that comprises set of lighting elements that emit light.
45 Citations
22 Claims
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1. A method comprising:
automatically obtaining a first image of a two dimensional direct part marking barcode, said first image obtained via a barcode pistol grip barcode reader that comprises a camera, said camera defining a camera axis, said barcode reader comprising an on-axis lighting module that comprises first set of light emitting diodes (LEDs) having a first emitted color, said on-axis lighting module adapted to direct light on an on-axis lighting direction that is approximately collinear with said camera axis, said barcode reader comprising an off-axis lighting module that is substantially mirror-less, filter-less, and lens-less, a distance between said off-axis lighting module and said camera adjustable, said off-axis lighting module comprising a second set of LEDs having a second emitted color, said off-axis lighting module adapted to direct light in an off-axis lighting direction that intersects said camera axis at an adjustable angle, said adjustable angle less than approximately fifty five degrees, responsive to a pull of said trigger, said barcode reader adapted to automatically and sequentially obtain a first image, a second image, and a third image of said two dimensional direct part marking barcode, said first image obtained with only said on-axis lighting module illuminated, said second image obtained with only said off-axis lighting module illuminated, said third image obtained with both said on-axis lighting module and said off-axis lighting module illuminated simultaneously. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method comprising:
automatically obtaining a first image of a two dimensional direct part marking, said first image obtained via a barcode pistol grip barcode reader that comprises a camera, said camera defining a camera axis, said barcode reader comprising an on-axis lighting module that comprises first set of light emitting diodes (LEDs) having a first emitted color, said on-axis lighting module adapted to direct light on an on-axis lighting direction that is approximately collinear with said camera axis, said barcode reader comprising an off-axis lighting module that is substantially mirror-less, filter-less, and lens-less, said off-axis lighting module comprising a second set of LEDs having a second emitted color, said off-axis lighting module adapted to direct light in an off-axis lighting direction that intersects said camera axis at an adjustable angle, said adjustable angle less than approximately fifty five degrees, responsive to a pull of said trigger, said barcode reader adapted to automatically and sequentially obtain said first image, a second image, and a third image of said two dimensional direct part marking barcode, said first image obtained with only said on-axis lighting module illuminated, said second image obtained with only said off-axis lighting module illuminated, said third image obtained with both said on-axis lighting module and said off-axis lighting module illuminated simultaneously. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A machine-readable medium comprising machine instructions for activities comprising:
at a trigger-activated barcode reader, automatically and sequentially obtaining a first image, a second image, and a third image of a two dimensional direct part marking barcode, said first image obtained with only an on-axis lighting module illuminated, said second image obtained with only an off-axis lighting module illuminated, said third image obtained with both said on-axis lighting module and said off-axis lighting module illuminated simultaneously, said barcode reader adapted to determine, based upon a comparison of said first image, said second image, and said third image, which of said first image, said second image, and said third image is decoded first in an attempt to determine a decodable image of said two dimensional direct part marking barcode, said barcode reader comprising a camera, said camera defining a camera axis, said barcode reader comprising said on-axis lighting module that comprises first set of light emitting diodes (LEDs) having a first emitted color, said on-axis lighting module adapted to direct light on an on-axis lighting direction that is approximately collinear with said camera axis, said off-axis lighting module comprising a second set of LEDs having a second emitted color, said off-axis lighting module adapted to direct light in a single off-axis lighting direction that intersects said camera axis at an angle, said angle less than approximately fifty five degrees, said off-axis lighting module comprising a plurality of subsets of LEDs, each subset of said plurality of subsets of LEDs adapted to direct light energy that intersects said camera axis at a distinct angle relative to said camera axis, each said distinct angle less than approximately fifty five degrees, a light controller comprised by said barcode reader adapted to automatically obtain a set of off-axis images of said direct part marking barcode, each image of said set of off-axis images obtained with said direct part marking barcode illuminated by only one subset of LEDs of said plurality of subsets of LEDs.
Specification