Illumination device for providing continuous diffuse light on and off an observing axis
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United States of America Patent
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Jul 23, 1996
Grant Date -
N/A
app pub date -
Oct 31, 1994
filing date -
Oct 31, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An illumination device for illuminating an object to be observed, by a machine vision camera of the like for example, with a continuous diffuse wide angle light which is supplied both along the viewing axis of the machine vision camera and off axis. The diffuser of the present invention is tilted with respect to the observation axis so that the diffuser is not viewable by the object to be observed. This provides better uniformity of the light which illuminates the object. A second diffuser may be utilized to provide illumination of the object with light of reduced intensity.
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Family
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Cited Art Landscape
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