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^^ OK, OK.. interesting. Unfortunately I don't have a pool to test with :cryyy: I still do wonder what the picture would look like though.

I'm certain that what you are seeing is the 808nm Near-IR. How collimated is "Well".. how big is the spot at ~10 feet? Any chance for pics?

Awesome! Good to know. Appreciate the info. Yea, I'm also interested in if this thing is IR filtered or not. I'm about ready to invest in an LPM and an IR filter for testing...

Yep. You're good to go either way, bro. Let us know what you get and how it turns out.

THAT: 405nm 50mW Blue Violet Laser Pointer Pen* US$24.99 only Looks alot like THIS: http://laserpointerforums.com/f38/8-ebay-pointer-becomes-burning-laser-58102.html found HERE: 5mw Blue Purple Laser Pointer For Gift Teach Job Busi. - eBay (item 110622889864 end time Jan-08-11 22:29:44...

You can be the first! :D Let us know how that turns out! Seriously though.. I think that it would work just fine. The guy that sells these is the same guy with the $8 405nm which has been tested up to 4.5V. The driver on both of these look to be of reasonable quality. I'd really be...

I got the 10440 cells finally. I'm now officially lasing in shorty mode. This is by far my favorite laser. :o

OK. On my ATX Bench PSU - 3.3V Rail (measured @ 3.43V) - the current draw starts off at 320ma and creeps up to 350ma and stabilizes after around 60 seconds. These measurements were taken with the laser and room at 70F. I also noticed that the output is unstable when powered at <2.6V. I can...

Nice. Those spots do look crazy on your camera!

The double needle-nosed vice grip solution works quite nicely here IMHO. Grip, Grip, Twist!

word. post some pictures of your finished product.

That host is pretty generic and used by a TON of manufacturers.. my brother has a <5mw that he bought at frys in that exact host. Another thing is that 405nm at 50mw is going to be less bright than a ~5mw green. My ~50mw 405nm pens would never be able to burn a thing without the lens...

I'm now curious myself, I will measure it this evening if the question hasn't been answered yet. I have run it from a 3.3V DC power supply (atx psu converted to bench psu) but didn't think to measure current. It appears that my 3.0V tenergy has arrived so I'll test that tonight if it has...

Wow. I think I'm going to order another one. Yea.. the included battery was shit. I ordered TENERGY-RCR123-900 : Tenergy RCR123A 3.0V 900mAh Rechargeable Li-Ion Battery and should receive it friday or saturday.. can't wait to see the difference. :eg:

I use an old ATX computer power supply. I cut back all the wires and tucked them safely inside then installed banana jacks for +12V +5V +3.3V and GROUND. Here is a link to some instructions for this: How to Convert a Computer ATX Power Supply to a Lab Power Supply - wikiHow You can also use...

The Red diode, (DVD-ROM) in your drive is ~1mw and not worth your time. The CD-RW diode, as others have pointed out, is 780nm which is NEAR IR and as a consequence is very dim in appearance. You can see it but since the wavelength is approaching the limits of human vision it is deceptively dim...

That's a nice clean build and driver circuit!

That laser comes with a rechargeable battery and the charger. Those batteries are around $4.00 Keep a pair charged and battery life shouldn't be an issue. 16340 / RCR123A Rechargeable Lithium Ion Batteries

Here is the lens that I used: AixiZ and here is the focusing ring: AixiZ This is a link to the full module.. which is nice to have if you want to mess around with some naked diodes: AixiZ You can also find that module through various resellers in different/smaller quantities if you want...

in my case i wasn't interested in pot modding because this thing has to be 45-55mw.. actually all of the 5 i've got are in that power range. So basically, I didn't "take it apart" I used a caliper to measure where to cut without cutting or gouging the module.. then smoothed that out. The lens...