5 ms·
What's a flattened version of the parabolic reflector look like?
by corey_moncure 5y ago
What's a flattened version of the parabolic reflector look like?
- ladberg 5y agoI think you're basically describing a concentrated solar plant, for example that giant array of mirrors on the way to Vegas (Ivanpah).
- aaron_m04 5y agoAh yes, the one that cooks birds in flight.
- analog31 5y agoNot quite the same thing, but the large mirror arrays used in those giant solar power plants are analogous, though without the circular symmetry of a Fresnel lens. An issue is efficiency: Each groove shadows its neighbor. In fact there's no reason why a Fresnel lens can't be made from rectangular panels instead of circular grooves, except that the latter are easy to cut on a lathe.
- gerdesj 5y agoPlane
- gerdesj 5y agoPlain
- samatman 5y agoThe reflexive honeycomb used ubiquitously in automotive contexts is exactly that.