HIGH SPEED OPTICAL INSPECTION SYSTEM WITH MULTIPLE ILLUMINATION IMAGERY
First Claim
1. An optical inspection system for inspecting a workpiece including a feature to be inspected, the system comprising:
- a workpiece transport conveyor configured to transport the workpiece in a nonstop manner; and
an illuminator configured to provide a first strobed illumination field type and a second strobed illumination field type;
an array of cameras configured to digitally image the feature, wherein the array of cameras is configured to generate a first image of the feature with the first illumination field and a second image of the feature with the second illumination field; and
a processing device operably coupled to the illuminator and the array of cameras, the processing device being configured to provide an inspection result relative to the feature on the workpiece based, at least in part, upon the first and second images.
1 Assignment
0 Petitions
Accused Products
Abstract
An optical inspection system (92) for inspecting a workpiece (10) including a feature (60) to be inspected is provided. The system (92) includes a workpiece transport conveyor (26) configured to transport the workpiece (10) in a nonstop manner. The system (92) also includes an illuminator (9) configured to provide a first strobed illumination field type and a second strobed illumination field type. An array of cameras (4) is configured to digitally image the feature, wherein the array of cameras (4) is configured to generate a first image of the feature with the first illumination field and a second image of the feature with the second illumination field. A processing device (90) is operably coupled to the illuminator (9) and the array of cameras (4), the processing device (90) provides an inspection result relative to the feature (60) on the workpiece (10) based, at least in part, upon the first and second images.
44 Citations
33 Claims
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1. An optical inspection system for inspecting a workpiece including a feature to be inspected, the system comprising:
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a workpiece transport conveyor configured to transport the workpiece in a nonstop manner; and an illuminator configured to provide a first strobed illumination field type and a second strobed illumination field type; an array of cameras configured to digitally image the feature, wherein the array of cameras is configured to generate a first image of the feature with the first illumination field and a second image of the feature with the second illumination field; and a processing device operably coupled to the illuminator and the array of cameras, the processing device being configured to provide an inspection result relative to the feature on the workpiece based, at least in part, upon the first and second images. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of inspecting an article of manufacture having at least one region of interest to provide an inspection result, the method comprising:
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generating relative motion between the article of manufacture and a camera array; acquiring a first set of images with the camera array during the relative motion and while strobing a first illumination field type upon the article of manufacture; acquiring a second set of images with the camera array during the relative motion and while strobing a second illumination field type upon the article of manufacture; generating a first stitched image with the first set of images; generating a second stitched image with the second set of images; determining an inspection result relative to the at least one region of interest based upon the first and second stitched images; and providing the inspection result. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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30. An optical inspection system for inspecting a workpiece including a feature to be inspected, the system comprising:
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a workpiece transport conveyor configured to transport the workpiece in a nonstop manner; and an illuminator configured to provide a first strobed illumination having a first angular spectrum with respect to the feature and a second strobed illumination having a second angular spectrum with respect to the feature, wherein the first and second angular spectrums differ from one another; an array of cameras configured to digitally image the feature, wherein the array of cameras is configured to generate a first image of the feature using the first strobed illumination and a second image of the feature using the second strobed illumination; and a processing device operably coupled to the illuminator and the array of cameras, the processing device being configured to provide an inspection result relative to the feature on the workpiece based, at least in part, upon the first and second images. - View Dependent Claims (31, 32, 33)
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Specification