Old 07-18-2009, 11:06 PM #1
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Post A question of power

How many mw of power would a red laser diode pointer have to be to project a visable beam in an average indoor lit room?


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Old 07-18-2009, 11:13 PM #2
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Default Re: A question of power

depends on the wavelength as 635 is more visible than 650-660nm...
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Old 07-19-2009, 01:20 AM #3
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Default Re: A question of power

anyway, a lot, maybe 500mW?
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Old 07-19-2009, 04:24 AM #4
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Default Re: A question of power

in a lit room!!!!! i have never seen it but my guess would be 1000mw or more
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Old 07-19-2009, 07:12 AM #5
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Post Re: A question of power

Thank you for that answer it put into perspective a bunch of things for me. If you could out line a few more at your convenience How many mw would a red pointer have to be roughly to send a good visable beam in the dark, as in a dark night not much moon. And as for a green pointer to see a definite beam in a lit room or on a dark night given they were all of a wave length that was pretty common. Thanks again and it's much appreciated.
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