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Old 03-14-2008, 05:55 PM #1
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Default can you estimate laser power by pointing at hand?

I got a DX200 and it seems really weak. From cold state, it takes about 5 seconds pointing it at my palm from about 4 inches before I can tell its burning me.

What would that equate to?


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Old 03-14-2008, 06:25 PM #2
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Default Re: can you estimate laser power by pointing at ha

Honest answer? NO!

Gotta go get it metered to really know. You can guess, but you'll have a nice +/- 200% margin of error. Every person has a different pain threshold, absorbance of their skin, you probably aren't holding the laser 100% steady, etc. Any guess I gave you on this situation would have to be "withing a tolerance of 3 magnitues" :P.

I can pretty much guarantee your DX200 ain't putting out 200mW, but how much it actually is I have no idea. Perhaps try around local universities to see if they can meter it for you, or otherwise consider paying 2 way shipping to have one of us on LPF with a reputable meter to test it out for you.
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