Even more on color

Don’t make the mistake of thinking you need a color camera to inspect a colored target. It’s often the case that you can create appropriate contrast by matching the color of the light to that of the target.

Last month, in “More on color,” I mentioned that you can lighten a surface by illuminating it with light of the same color, while an opposite color (refer back to the color wheel to find the opposite,) will darken the target.

Well, courtesy of LED lighting specialists CCS Inc., here’s an illustration of what I mean.

And when you’ve finished browsing that particular page I would encourage you to look at the test of their Technical Guide. It has some good information about using LED lighting.