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Seconded! Welcome to the forums. If you've been looking around for a year or two, any plans for buying/making laser?

You make a good point, it's very likely that any new technology we create will just end up being used for the wrong purposes, as it always has in the past. But that's just human nature I suppose.

then to change the output of the laser from 501nm to 561nm, you would have to change the temperature (61nm)/(0.3nm/C) = 200C. That's a little outside my comfort zone for holding the laser.

Very true, but it still shouldn't be a drastic change.

I don't really like stepping on people's toes when it comes to religion, it is always a touchy subject, but once you start studying any of the hard sciences with any sort of detail, the idea of God holds less and less power. While I do not deny the existence of a deity, as the idea can never be...

Wavelength should have little to do with power input. Lasers fundamentally work through stimulated photon emission caused by exciting gases or semiconductors (in diodes) The wavelength of the emitted light corresponds to the band gap energies of the semiconductors in question (when dealing with...

apod is my homepage, I just saw the picture, great stuff!

An excellent point, ultimately it is a question of Platonic idealism, and a matter of philosophy if you would like to argue that we are all in a simulation right now. I would prefer to side with the Aristotelian argument that even if the reality we experience is not the true reality, it prompts...

Technology is going in some crazy directions. If you follow moore's law, computer processing capabilities should outperform the human brain within most of our lifetimes. Some people (most notably Ray Kurzweil) are predicting the coming of the technological singularity, a point at which we should...

Looks awesome! :gj:

Sounds fun, and welcome! :wave: We all love pictures when you get that build going :)

DarkReaver, I'll be sure to post some pics and info when the LED Shoppe pen comes in. In the mean time, you may want to take a peak at these threads if you haven't already: http://laserpointerforums.com/f44/index-work-progress-62480.html (has a lot of good general information for new people...

Looks pretty awesome to me! I wouldn't know if there are any problems with it, I've never built a labby or any laser in that power region anyway, but cool pictures, thanks for sharing :gj:

I've got a couple cheap ebay pens, they vary in brightness and consistency wildly, if you get a few, one of them is bound to be decent, but they're a couple bucks, so you get what you pay for. I also have an LED Shoppe 50mw green pen on the way, (should be here, but the shipping is slow)...

Hey all, I posted (and joined) a few weeks ago, and I asked a few questions about builds, and read more posts then I can recall, anyway, I felt like I had accumulated a decent amount of knowledge, and I ordered parts, they showed up, and I have all the hard parts done I think. I have the...

Thanks for the info, I'm always glad to here there's someone on the other end actually testing these things, and I'm always inclined to believe someone who's up front about OD's and testing than someone who's not. :thanks:

Hi all, I've got a question for all those that wish to answer. I ordered some radiant shades safety goggles: RadiantShades for Blue and Green Lasers as a preemptive safety measure for my first laser build (a 404nm BR ~200mw from a 6x diode, build in progress). As you can see the wavelength...

Hey there timeless, welcome to the forum, I'm sure you'll find people are quite friendly around here :wave: Anyway, maybe take a look at this one: 150mw 532nm Open-back Green Laser Pointer with Keychain(Ligniting matches) - DinoDirect.com you can fish around on priceangles and dinodirect, DX...

Thanks again, and one last question for now... The V3 microdrive has a max current output of ~440mA. I don't plan on pushing it all the way to it's limits but if I'm running it at ~7V input should I be thinking about a heat sink for the driver, and if so, what is the best way to set the driver...

Hello again, so I have some updates. I've ordered some parts, and I have some additional questions. I ordered a 6x br laser diode rated at around 200mw, Threshold current is listed as ~33mA(~3.6V) whereas operation voltage is ~5.1V @ 190mA. I also orderd a rkcstr microdrive, and a rkcstr test...