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Originally Posted by robgreaves
For this ruling to make sense, there must be legislation on beam divergence or convergence? Where is that written down?
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If you are lucky, you may fall withing class 1M. "Class 1M usually relates to laser products with high divergence or large beam diameters compared to the limiting aperture." This is assumign the barlow can not be removed as lasers are classed by the maximum output under their worst failure mode.
Quote:
Originally Posted by robgreaves
Again, where are the statistics of pilots Blinded (loss of vision) through staring in a laser beam? Hmm - I thought so - none.
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This has been studied fairly thorougly be the american faa. (See either of the links I have posted previously in this thread). While there have been cases of damage to pilot's eyes, the problem is with what they call "distraction and startle", "glare and disruption" and "temporary flash blindness". My reading of the faa study is that 5mw green lasers essentially cause minimal problems unless more than about 350 metres from the cockpit, making helicopters more susceptible than other aircraft. But please check it out for yourself
http://www.faa.gov/library/reports/m...media/0409.pdf