I might be wrong but using ior and rising the max_trace_level in the 
global settings should do the trick.
But only if the border angle where the refraction turns into reflection 
is used in POVRAY, which I don't know (yet).
It should be easy to write a test code ...

Stephen schrieb:
> On Sat, 9 Jun 2007 13:57:43 +0200, "TP Electronics" <tp### [at] tpelectronicsno> wrote:
> 
>> I want to desing a optic guide for en LED.
>> It is possible to simulated this with povray?
>> I can not see where I can change specification of material to define the 
>> guide.
>> I am play with led source but not manage to make a led with 10degres angle.
>> Best regard
>> Thierry 
>>
> 
> I don't think that fibre optics (if that is what you mean) can be done in
> Pov-Ray, not without faking it.
> 
> Regards
> 	Stephen

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