Illumination for inspecting surfaces of articles
The present invention relates to visual inspection of surfaces of articles, and more particularly to an illuminator for the automated optical inspection of ball grid array substrates, lead frames and printed circuit boards. An illumination system including at least one reflector subtending an angle...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The present invention relates to visual inspection of surfaces of articles, and more particularly to an illuminator for the automated optical inspection of ball grid array substrates, lead frames and printed circuit boards.
An illumination system including at least one reflector subtending an angle with respect to a location on a surface of an article, and first and second light sources, the first and second light sources each providing a light output, the light outputs from both of the first and second light sources being directed to impinge on the location on the surface of an article within the angle, at least one of the light outputs being reflected by the reflector. |
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