Re: 405nm Pointers for SALE - Adjustable out
hi,
visible range really depends on two things. Divergence, which is in your controll as it has manual focus, and surface the dot is hitting.
What I mean by surface, is that your eye is not very capable of focuseing and seeing true 405nm purple dot. If you ever get 405nm laser, you will only then understand what everyone is talking about. Its weird and beautiful in the same time. Sometimes it looks as if dot is not hitting the wall surface, but some really transparent glass right in front of it, or that the dot is floating in the air in front of the wall.
But if you hit certain white surfaces such as white paper, it will turn into very bright light blue and will be like 10 times more visible all of a sudden, giving you much more range.
All in all, this laser is great for indor experiments, pointing around and fluorescing different objects than pointing at long range targets.