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Old 09-15-2007, 05:30 AM #1
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Default 'Myth or Fact'

I have heard some where that green lasers are double the mw of a red lasers! so...

1mw green = 2mw red

I know your eyes are more sensitive to green then red But is there any truth in that? ^


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Old 09-15-2007, 05:32 AM #2
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Default Re: 'Myth or Fact'

It is a complete 100% myth. 1 mW is 1mW no matter what the color.
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Old 09-15-2007, 05:35 AM #3
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Old 09-15-2007, 09:47 AM #4
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Default Re: 'Myth or Fact'

Then how come a 5mW greenie has a brighter dot and beam than my homemade ~100mW red? :-?
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Old 09-15-2007, 09:49 AM #5
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Default Re: 'Myth or Fact'

Quote:
Originally Posted by Comidt
Then how come a 5mW greenie has a brighter dot and beam than my homemade ~100mW red? :-?
Because the eye is more sensitive to green then red...look at a spectrum chart...google it..
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Old 09-15-2007, 02:35 PM #6
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Default Re: 'Myth or Fact'

Oh, yeah i knew that.
i thought that's what he was asking, sorry :-[
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Old 09-15-2007, 04:42 PM #7
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Default Re: 'Myth or Fact'

Acctually IIRC, AS FAR AS HUMAN VISION, 1mw green = 3mw red (green is 3x as visible as red, I think)

this is a hole I fell into also when I started with lasers, I didn't know about the vision-sensitivity and assumed it really had to do with the pwoer itself.
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Old 09-15-2007, 05:43 PM #8
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Default Re: 'Myth or Fact'

1mw = 1mw for power.

for visibilty to a normal human 1mw of green ( 532nm ) = about 4mw of red ( 690nm ), 3.7mw of red ( 650nm). and about 2.7mw of red/orange ( 630nm )

those are ballpark.

blue is a bit diffrent since at night it becomes much "brighter". your night vison is blue sensitve.
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Old 09-15-2007, 05:57 PM #9
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Default Re: 'Myth or Fact'

Newbie here with a related (or stupid) question of burning capabilities of different color lasers. Letís say you have 3 lasers with the same output: red, green, blue. Does one burn better than the others?
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Old 09-15-2007, 06:00 PM #10
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Default Re: 'Myth or Fact'

Quote:
Originally Posted by Mini-Man
Newbie here with a related (or stupid) question of burning capabilities of different color lasers. *Letís say you have 3 lasers with the same output: *red, green, blue. *Does one burn better than the others?
they would burn the same
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Old 09-15-2007, 06:12 PM #11
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Default Re: 'Myth or Fact'

Perez-Allende, thanks for the quick reply. I thought they might be the same, but wasn't sure.
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