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The ESA took some video from the ground of the ISS as they illuminated it with a 3.6W 532nm laser a week ago. Pretty cool stuff and an amazing video. They must have used some mighty fine adaptive optics to get images like that which would normally be impossible due to seeing limitations. Or it...

Newport has some excess stock visible AR coated pbs cubes marked down from $350 to $25 through July 7th 2014 or until they are gone - here: 5811. Would be a nice grab for dual diode builds (who doesn't want to see a 3W 520nm?) They also have several other deeply discounted optical...

After recent purchases from Survival Lasers, DTR and Flaminpyro, I have to say that I am very pleased with the responsiveness of these sellers as well as the quality of their products (SS host and driver/pill from SL , diodes and optics packages from DTR, and a couple of drivers from...

Hello LPF. I have just begun posting around here after a couple months of lurking. I have built a number of laser projects several years ago unaware of the existence of this community and have just gotten back into the hobby after a recent move. I am just as interested in the physics/basic...

I am fairly new here and certainly haven't read every post on the forum (so might have missed some discussion of this), but I have seen several threads, particularly reviews, that seem like they might be missing a basic concept. I have seen many people gushing about "really great thermal...

I have been lurking for some time now and looking through older threads for information on lenses and have come to the conclusion that starting a new thread might just prompt the kind of discussion I'm looking for regarding a "silver bullet" collimating lens solution. Forgive me if I don't make...