Recent content by Stone

That still means removing the diode from the optics assembly, fitting it to the aixiz module and soldering it up. I've made red lasers before and I nearly destroy the diode putting it into the module. Plus trading is better than buying :)

Hi, I'm after one of these completed. I don't feel confident putting one together myself :( I was thinking that someone might want to trade for laser diodes... I can get Pioneer reds from current model drives and the occasional blu-ray from Pioneer drives. They'll still be in the optics...

OK, I guess I just need to be more gentle :)

I've come across a problem harvesting open can diodes... How do I get them out of the aluminium holder they're in? With the closed ones, I could be rough and cut away the aluminium holder with side-cutters, but with these open can ones I seem to make a mess of them.

Re: Pioneer DVR112 laser diode voltage/current spe I only touched the board at 5v to see if it was hot but it was barely warm. I know that if you take them higher(voltage) they do get hot though.

Re: Pioneer DVR112 laser diode voltage/current spe I had a look at the DX SKU 1885 boards I have, which are 1050mA drivers using three AMC 7135 regs. The boards actually have links on two of the regs so you can disconnect them, so I desoldered the links and tested the board. I used a new...

Re: Pioneer DVR112 laser diode voltage/current spe With the tests I did above, I was actually holding the diode in it's aluminium case to the larger heatsink. It didn't feel hot until I got above about 800mA, but even at 1.15A it wasn't too hot to hold. It was obviously slowly dying though.

Re: Pioneer DVR112 laser diode voltage/current spe Yep, the drivers (from DX) with the AMC7135 regs. I already have several 1050mA versions but i'm awaiting the arrival of the lower current models. I might see if I can remove a couple of the 7135's from my current boards and do the testing today.

Re: Pioneer DVR112 laser diode voltage/current spe As the guys above have said, the laser diodes are like LED's, they're current driven and will draw the current they require depending on the level of voltage available. It took me a while to understand it but after testing several LED's and...

Hi, I'm not sure if this will be useful to anyone else, but I have removed a Pioneer DVR112 laser diode today and measured the current draw over a range of voltages. The diode is an open can version and I left it in its aluminium holder and heatsinked it to a large heatsink while testing...

Thanks :)

What's the length of those modules from the DX lasers? I'm thinking of dismantling a 30 or 50mW one for a project and would like the shortest module available.

Thanks for the replies... It looks like I might have to resort to making my project a bit longer to keep the cost and availability of the lens easier to work with. If we disregard my length limitations, is there any common and cheap lenses that would work for me? The only store i've looked at...

I have been using the formula above in the picture to estimate the lens I require... Since I can estimate the input beam diam, output beam diam, and the secondary lens I can rearrange the formula to work out the FL primary lens I need. Since the output is d and the input is (f2 / f1) * d, I can...

Thanks for the reply :) I was looking at this (I can't posts links - But it's a 50mm diam/35mm FL aspheric lens) to converge the beam after it had been spread, I just couldn't find anything that seemed suitable to diverge it though. The diverging lens needs to be able to spread the beam from...