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Old 08-20-2011, 09:17 PM #1
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Default No experience, need advice!

I have no experience in lasers at all, apart from using old school ones from the dollar store, lol.

I just want to know, about how much does it cost to make a laser? I don't really know much about MW and NM and all that stuff but I am willing to learn. I just want to make a laser that can show a beam in daylight, and look cooler at night :P Maybe pop some balloons or light a match?

I bought a blu ray player for cheap a couple days ago, hopefully I can use it somehow.

I would love to know the costs, and if someone could link me to a great tutorial for people who have no experience to do this from the ground up?

I tried searching around, found this site, but when looking on this site, I couldn't find many basic tutorials. Hopefully someone can help!


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Old 08-20-2011, 09:22 PM #2
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Default Re: No experience, need advice!

Not sure how basic you need but Check out the tutorial link in my sig. It has quite a few tutorials.
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Old 08-20-2011, 09:28 PM #3
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Default Re: No experience, need advice!

Thank you for replying, I really appreciate it.

See I think Im going to need a bit more basic, an example you have one saying 40MW 635 NM I don't exactly know what those numbers are, mega watt and.....?

I need to know basically, which one of those can I build with a blu ray player?
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Old 08-20-2011, 09:31 PM #4
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Default Re: No experience, need advice!

showing a beam in daylight is not going to happen unless you can spend quite a lump sum of cash. To have a laser that you can see the beam at night is par for the course around here.
The blu ray laser is certainly the most interesting wavelength to me, how it can activate glow in the dark materials .
As simple as it gets:

mw (milliwatt) is power of a laser. 100mw will burn a match, pop a baloon and sting your hand (not 650nm, though as it is not absorbed by your skin and nerve receptors).

nm (nanometer/nanometre) is color in wavelength (sometimes abbreviated WL). The most common colors in handhelds are 405 blu-ray, 445 blue-violet, 473 sky blue, 532 green, 561 "plant" green, 589 amber, 594.1 fire orange, 635 redorange (high powers get very expensive, ~20mw is relatively cheap), 650 red, 808 Near Infared (I have a 700mw and it is dimmer than a 1me 650nm) , 980 (completely invisible). (might have missed a couple)

Also, advances are being made towards the broadened use of 510nm.

Bolded ones are considered "extradornary wavelengths" and will be more costly for the powers. ex. $600 for 15mw of 589 when you could get 50mw of 532 for $25.

Also, check this out for luminous efficacy, basically how bright each wavelength is to humans. Not completely accurate, but it's a ballpark idea.
Luminous Efficacy
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Old 08-20-2011, 11:34 PM #5
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Default Re: No experience, need advice!

Alright, well what I really need is, a parts list, and a tutorial on how to put everything together :S
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Old 08-21-2011, 12:08 AM #6
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Old 08-21-2011, 01:03 AM #7
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Default Re: No experience, need advice!

Quote:
Originally Posted by Fenzir View Post
The most common colors in handhelds are 405 blu-ray, 445 blue-violet, 473 sky blue, 532 green, 561 "plant" green, 589 amber, 594.1 fire orange, 635 redorange ...
I wish you were telling the truth
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SAFETY & IMPORTANT READING (threads authored and contributed to by various members of LPF):
- Federal Aviation Administration - Laser Safety Initiative (link)
- Info release from Laserglow - Default Canadian restrictions on portable lasers (link)
- The Necessity of Safety Goggles (link)

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