[Raytrace] How to optimize on the schwartschild coefficient ?

[Michael Peck]

At 23:09 18-09-02 +0200, Charles Rydel wrote:
>How can I do that with OSLO 6.x ? Has somebody tryed it ?
>
>Charles

Just make it a variable. You do that by opening up the variables worksheet, 
adding a line for the surface you want to make aspheric, and selecting 
conic constant (CC) for the variable type.

If you're doing something simple like a cassegrain it's probably better to 
work out the conic constant from a formula, but the default GENII merit 
function usually produces sensible results.

Mike Peck


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