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Re: IR filters
>How much power really is needed? The source laser *must* be down in
>the milliwatt range, and must be reading microwatt levels reflected
>back. It seems like a flashlight pointed at the source would
>completely swamp any reflected signal
Dunno, on a sunny day there's already a lot of IR coming off a car.
Also, this IR power must be spread out to cover likely directions to be
defended against. It'll lose power very rapidly with distance.
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