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Old 02-18-2008, 09:14 AM #1
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Default Where to get some cheap dichros?

Well everything's in the title, where can i buy some cheap dichros? i would only need one for the moment as i only have red and green but if i can get another one for the blue when i can afford it ;D

Any links , recomendations..?
Thanks


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Old 02-18-2008, 06:43 PM #2
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Default Re: Where to get some cheap dichros?

i think i heard you can get some out of old laser disc players, theres also a hene laser in there i think
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Old 02-18-2008, 07:04 PM #3
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Default Re: Where to get some cheap dichros?

and if i wished to buy some where would i go?
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Old 02-19-2008, 10:17 PM #4
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Default Re: Where to get some cheap dichros?

Just a question about HeNe's.. If i got a HeNe from a old laserdisc, what could i use it for? would i need to make a driver? wouldn't it be weak? What would make me prefer it over other red lasers?
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Old 02-19-2008, 10:30 PM #5
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Default Re: Where to get some cheap dichros?

Great beam specs in a way that the dot of a 1mW HeNe would be visible even longer away than a 100mW diode laser?
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Old 02-20-2008, 12:34 AM #6
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Default Re: Where to get some cheap dichros?

Since HeNe lasers have a cavity the beam will be significantly more TEM00 than diode lasers that just emit from a rectangular hole. As for how far away you can see something that depends solely on the power of the laser and spot size at the distance in question.
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