Optical illumination system for linear CCD scanning
A lighting system and linear light source technology, applied in lighting devices, fixed lighting devices, lighting and heating equipment, etc., can solve the problems of high manufacturing cost and use cost, high energy consumption of optical detection equipment, insufficient lighting intensity, etc. The effect of long life, high uniformity and wide resolution range
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[0022] The present invention will be further elaborated below in conjunction with accompanying drawing and embodiment:
[0023] see figure 1 Shown is the linear CCD scanning optical lighting system for the automatic optical inspection machine of this embodiment, which includes a first linear light source 1, a second linear light source 2, a third linear light source 3, a beam splitter 11, and a second Fresnel lens 21. The third Fresnel lens 31 and the second reflection mirror 22 and the third reflection mirror 32. The first linear light source 1, the second linear light source 2, and the third linear light source 3 irradiate the front, front and rear sides of the detected object at the same time to achieve shadowless lighting. The imaging light reflected by the detected object passes through the beam splitter 11 directly to the CCD linear image sensor. The first linear light source 1, the second linear light source 2, and the third linear light source 3 are all formed by low...
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Abstract
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