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A Little Enlightenment

Photonics Spectra
May 2001
Light-emitting diodes and fiber optic illuminators face off for A Little Enlightenment applications.

Steve Giamundo

When automated inspection became a viable process, engineers concentrated on the camera and optics, the algorithms, the interface hardware and the processor. Only rarely did they pay attention to the lighting system or lighting approach.

As automated inspection became more robust and versatile, and engineers became more familiar with its operating characteristics, they began to realize the importance of lighting. Today, the significance of lighting is well-known, and many innovative approaches have helped to solidify machine vision's value as an inspection process...

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