Faceted ellipsoid mirror

projectinspo

#1

Cool stuff

http://n-e-r-v-o-u-s.com/blog/?p=3343


#2

Wow. trippy. They used to (don’t know if they still do) make mirrors like that as beam combiners for seriously high-powered lasers. Each sub-beam was already collimated, so the mirror thingy just had to assemble them all and point them in the right direction, without focusing or defocusing.


#3

So that’s what they used…