Sunday, January 30, 2011

More information on LED life

I want to give a “shout-out” for Spencer Luster of Light Works ( for the useful links he provided recently. If you read my post “Vision troubleshooting tips debated” you may have seen that Spencer took the time to comment on my observation about the drop-off in lumens that LED lights suffer.

If you missed that post, here are the two links that Spencer offered:

- A paper on
measuring LED performance.
- A site with a plethora of
info on LED and other light sources.

Now let me repay the favor and encourage you to boost your optics knowledge by reading some of the papers on the Light Works site. In particular, paper number 4 on “Magnification, f-number, and Depth of Field” should be required reading for all machine vision practitioners.

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