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Old February 26, 2014, 10:35 PM   #23
JohnKSa
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Join Date: February 12, 2001
Location: DFW Area
Posts: 24,985
Quote:
There actually are direct green laser diodes. Just not in the 536nm range. IIRC, they are @ 531nm. The cost is way up there. So is the power requirement.
Well, sure enough! Apparently they became available in 2009.
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