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Old 04-04-2016, 12:16 PM #1
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Default Laser Design Help

We want to build a laser which should have dot size of less then 3mm at 10 meter or 30 Feet. We are using cheap 5mw red laser module. Is it possible to build get a that size with the current module with some modification in lens or putting small aperture? if possible what would be size of aperture or focal lenth of lens ?


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