- Oct 24, 2009
445nm packs a lot of power in a 5.6mm frame. but it is only good for burning up close. if you want distance burning go for violet. ppl can light matches and pop balloons from over 40 feet with about 500mw
this is true but it is not really relevant to our hobby because our lenses are nowhere near as presise as lab lenses. and our eyes cant see that small.
"Not really relevant to the hobby"??? must be a balloon popper here.... if someone wants to know about the science of lasers outside of lighting matches or amusing themselves by burning insects., then by all means, applaud the curiosity.
The reason we need shorter wavelengths to read DVD and blue ray has everything to do with dot density, if the sinusoidal wave of light is longer than the data dot size, the frequency of errors goes through the roof from distortion. Personally, I find it very interesting that we have maxed out the capabilities of optical data storage, and the limiting factor being the wavelength we can use.