For those purposes, why would it need to be mirrors? We don't care to coherently reflect the light; we just want to block it.
(For reference, I think all of these are likely to be somewhere between moderately and incredibly bad ideas...)
> We don't care to coherently reflect the light; we just want to block it.
The energy has to go somewhere. If you're not reflecting it you're absorbing it and you eventually have to do something else with it.
> We don't care to coherently reflect the light; we just want to block it.
The energy has to go somewhere. If you're not reflecting it you're absorbing it and you eventually have to do something else with it.