Search results

Yes, you'd be correct on that assumption. The LOC's die extends the full length of the pedestal, while the SOC has a much shorter die. Try to push a short-die as hard as a long-die, and it dies. (no pun intended). The current values I've recommended are extremely conservative, but seeing as...

Accidents happen, and they're a learning experience. Worst I've done is 5 diodes dead (LED'd, crushed or blown apart) in an hour. :( First thing you can try is re-soldering the diode to the wire, and seeing if it works. It might not be much, but it's worth a try. Secondly, is the diode a...

12. Long-term Evaluation So, it's come a long way, and unfortunately, I need the money to fund a projector project and some DMX gear, and it's going to pass on to a new owner, who will appreciate and enjoy it much more than I do. And before I let it go, I thought I would just say a few words...

Then your sense of humour needs some re-working. There's a thin blue line from where it becomes funny to offensive and uncalled for. Understanding where that line sits is rather important. I'm sure if he was insulting you, and others were laughing at you, then you wouldn't find it amusing at...

OK, you're back in the green. Please, just don't do anything like that ever again. It's not too popular around here. Having said that, it was your laser, what you did with it was entirely up to you.

That's why it's damn near impossible to find info on 589nm DPSS systems. Whereas with 594.5nm, it's just a PITA to get working.

Nd:YVO4 does have an absorption band at 780nm, although it is significantly lower than the one at 808nm. It can (and will) lase when pumped with 780nm, but not nearly as efficiently as if pumped with 808nm. The reason why the wavelength doesn't shift depending on pump wavelength is because...

It's not actually static that's causing the recharging. Capacitors (especially non-electrolytic) suffer from a 'memory' effect, where, even when discharged, they will slowly regain their charge, due to charge-induced polarisation in the dielectric material. As the dielectric material reverts...

Sorry for the double post, but it had to be done :P I've got some pics of this laser running analog mod. Needless to say, not pretty. All photos were taken with the laser running through a tunnelgun. It seems that from 5V down to 2.9V, there's no visible change in output, both to the eye, and...

The best option at this point in time is to build your own projector. Order a set of galvos, lasers, and a DAC, along with all necessary optics. Assemble it on a baseplate yourself, and you're good to go. You can't really get good pre-built units these days, so most people will DIY. Once you...

6. And 6 too many. Exploding left eardrums don't make for a pleasant landing experience. EDIT: 775 posts.

You don't get it, do you? His point is- your eye will focus the laser light down to a tighter spot down to the retina than the flashlight will. Remember, even uncollimated laser light is coherent. It will focus much further than a non-coherent source, regardless of power. Hence why it's more...

Yes, it's a square beam profile. At aperture, it's a rectangle, but it quickly becomes a near-square after you give it some distance and let both axes diverge. It's not like the 445s, they only give one divergence value. This either means they've got inbuilt correctional optics or they're...

If it tastes like a duck, quacks like a duck, and waddles like one, it's probably a duck. Now, if it were DPSS it'd be either 660 or 671nm. Nor would it have the 4mRad divergence, and horrible beam diameter at aperture. PBSing diodes would be impractical- you just can't fit the optics required...

:crackup: And you only noticed *how* long afterwards? They've been doing it for years. That certainly isn't the first warning letter they've been sent- go do a search, you really won't be surprised. The link they once had on their Arctic page was a document from circa 2004-2005, and was for...

Here, this might help ya. See in my sig, there's a link that says the Build Guide? Click it for one of the most comprehensive guides on LPF. That should answer most, if not all of your questions. Got anything else to ask? Feel free to ask here.