- Jan 15, 2021
True, although my tests with LEDs have shown that 365nm UV tends to work slightly better than 405nm. But my plan was to use 405nm. Remember, I stumbled on the above set by CHANCE.Sowee: 405 should be good for exiting things, you dont need 375nm
Yes, I do need a laser, because for one thing, lasers can excite fluorescence that can't be seen with LEDs, simply by being more intense. See the paper, "Laser-Stimulated Fluorescence in Paleontology" by Thomas Kaye, Amanda Falk, Michael Pittman, Paul Sereno, Larry Martin, David Burnham, Enpu Gong, Xing Xu, and Yinan Wang. I'd link you, but it won't let me. However, the bigger issue for me is that I want to do it from a distance, and I can't get up close with an LED in this case because the things I want to image are high up on brick walls. The plan is to stick with 405nm for now.Do you need a laser for this though? Maybe you can use an LED with a UV output that is quite a bit cheaper (but still expensive to me, FWIW).
Laser modules (rather than pointers) are fine for my application, since eventually it's going to be integrated with a turntable to electronically sweep the beam across the scene. Laser will be controlled by Artuino, with some kind of manual kill switch probably for safety.
Yeah, I may get in touch with Lifetime17 for advice if nothing else.