0x30114

Hello, you have reached 0x30114—please leave a message at the tone. <BEEEEEEEEP/> 0x30114 (talk) 13:42, 24 August 2009 (UTC)

Luneburg lens

Nice Luneburg lens diagram. Could you do a similar Maxwell's fish-eye? The ray paths would be

<g id="rays0">
  <path d="M 1 0 A 2.125      2.125      0 0 0 -1 0" />
  <path d="M 1 0 A 1.25       1.25       0 0 0 -1 0" />
  <path d="M 1 0 A 1.04166667 1.04166667 0 0 0 -1 0" />
</g>

but I can't guess the law you used to map the refractive index to the opacity. The refractive index for the fish-eye is

$n={\sqrt {\epsilon _{r}}}={\frac {2}{1+\left({\frac {r}{R}}\right)^{2}}}$. --catslash (talk) 15:48, 27 September 2009 (UTC)

Sorry, I was being obtuse; the rule is: opacity = ln(ε_r). I will see if I can do this myself. --catslash (talk) 15:01, 2 October 2009 (UTC) Made a diagram of Maxwell's fish-eye myself. In the process I've moved your Luneburg diagram to the Commons - the reason for this was to take advantage of automated tools for handling licensing of derivative works. --catslash (talk) 02:17, 3 October 2009 (UTC)

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