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Isn't a fresnel lens really just an non-idealized boundary layer too? http://en.wikipedia.org/wiki/Fresnel_lens http://en.wikipedia.org/wiki/Fresnel_lens
by mbyrne 15y ago
Isn't a fresnel lens really just an non-idealized boundary layer too?
http://en.wikipedia.org/wiki/Fresnel_lens http://en.wikipedia.org/wiki/Fresnel_lens
- thirdhaf 15y agoCorrect, but with the caveat that it only really works along the optical axis. Off-axis you get horrible artifacts. If I recall correctly these metamaterials do not have that limitation.