Machine vision is often 80% lens, lighting, and presentation. These three factors give you image quality and repeatibility, which make programming your inspection as simple as possible.
This document discussing selecting appropriate lighting for your vision system.
In the Lab
Vision Feasibilities studies are a typical first step. Having a huge selection of lights is not necessary - often times you can use a few lights and other tricks to get a good idea of what a light you don't have on hand would look like. For example....
Diffuse Light
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Putting it all Together
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