Re: Conic constant temperature invariant?

Florian wrote:
Hello fellows,

I am doing some thinking about the temperature dependence of the conic constant of a non-spherical surface. Can anybody recommand literature about this topic or knows how it behaves? I would like to know if the concic constant changes when e.g. a hyperbolic mirror is heated homogenously.

There is no change in the conic conic constant when the mirror is
heated homogeneously. The only parts that change is the [central]
radius of curvature and the size/thickness.
.