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I think that this 'boredom' is what causes many of a lower intellect than the people on this forum to start doing stupid stuff with them :( For me, the technology behind them is waaay more interesting than the finished item. I've learned more about driver technology, diode specs and...

If he created a new Category of SAFETY ITEMS it would draw the visitors eye to it. It's easy to do in the code.

Thanks - yes, I found the PBS for 2 beams but was trying to see if it was possible to combine say 4 by using the same principle - of course the problem would be the polarization control for each of the beams and I envisioned a conical prism with 4 flat sides that could refract the beam - but as...

I would love to contribute to this thread but I am not allowed to because of my "lasers are more dangerous than guns" thread :na:

I really wish that people who have these Web Sites would have a Category of SAFETY ITEMS - I did find the goggles eventually under Accessories :( Is $20 for a driver a good price?

What techniques are available to combine multiple diodes outputs to increase beam power? I read that someone had combined 2 diodes but details on how they had done it were sparse. Would a refracting prism work - pointing the beams in such a way that the prism refracted them to combine on the...

Re: FS AwesomeLasers Cobalt 2000, LaserBee 3.2 LPM + safety goggles The LPM (Laserbee II 3.2W) was purchased new in December 2010

As I have said before, it's not the people on sites like LPF that I worry about - it's the other 312,000,000 who might get their hands on 'our' lasers.

LOL I see on the USPS web site they give you both choices Great Britain & Northern Ireland or United Kingdom (Great Britain & Northern Ireland) However see this on their website International Priority Mail Insurance

Someone needs Geography lessons at your USPS - unless Scotland has devolved recently it is still part of Great Britain - England, Scotland and Wales. When you add in Northern Ireland you get the United Kingdom. The only time it gets confusing is when you have to send to Jersey, Guernsey or the...

AND a Macaw is going to cost you at least $1500 - I know as I bred and raised Military Macaws!! They need a lot of attention in the first 4 years of their lives so unless you have someone at home 247 it's really not a good idea to start with such a demanding pet.

Re: FS AwesomeLasers Cobalt 2000, LaserBee 3.2 LPM + safety goggles Sorry, just saw your request - I have the original receipt for it at the surgery so I'll give you the exact date tomorrow. Steve

You need to find out the NOHD of your laser. If you want to calculate it then try here :) http://www.optique-ingenieur.org If that's a bit much then as our lasers are built using pretty much the same diodes and optics you can use a comparison with another laser of similar power. My 1.2W...

What the nerve endings in the skin measure is temperature differentials - that's why we feel comfortable on a 60F day and on an 80F day so when you apply heat to your arm, you will only sense that heat if you put more heat in than the body can absorb and pull away from the area. It's like...

Weird stuff indeed! I just found this page that tells you how to con your insurance company to paying for your "Cold Laser Therapy" - then we wonder why our health care system is going to the dogs! Con your Insurance Company (sic) Ryan, Chiropractors are legitimate health care professionals -...

OK, so this suddenly got interesting ;) Where can I find out more about 3 mode boards - is it possible to have a 'safe' 5mW and then 2 other power levels that are user defined at the design stage?

Ok, so those that have small, short duration lasers also have larger ones. That makes sense.

Wow, that is small! What was the output and duty cycle?

I don't know which is why I asked. Do they?

Has anyone noticed the trend in making more powerful lasers from smaller and smaller hosts and how this is giving shorter and shorter duty cycles (time on versus time off to allow it cool)? I've seen several builds claiming 1W+ of power in both small flashlight hosts and pen style hosts and...