I'm in need of a red laser module to prototype a medical device. I intend to use it as a ~20° conical beam "flashlight", so I think around 25 mW would be ideal. Unfortunately, I can't find anything in this power range. I see lots of 5 mW, and over 200 mW, but not much in between. Can a 200 mW diode be driven at 25 mW? Any suggestions on how to acheive a conical beam? Is it as simple as using a bare diode without a lens?
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