I wasn't sure if it was possible so i asked for help in 
povray.binary.images and the God of Raytracing, Gilles Tran answered 
with this file:

// Sample Scene Gilles Tran
// modified Arne Kleinophorst
background{rgb z}

global_settings {photons {count 20000 media 100}}

light_source{<5,0.1,0>, rgb y*1 spotlight falloff 5.4 point_at 
//green light
<0,5,0>} // OK

sphere {<5,0.1,0> 0.2 rgb x*1 hollow no_shadow}  //light source indicator


box{<-2,0,-2>,<2,10,2> texture{pigment{rgb 0.1}finish{ambient 0 diffuse 
0.4     //mirror
reflection 0.8}}
     photons{target reflection on refraction off collect off}
}

box{<-2,-0.1,-2>,<2,10,2> scale 10 //atmosphere
     texture{pigment{rgbf 1}} hollow
     interior{media{scattering {1,1 extinction 0}}}
}
camera{location <0,6,-20>   right 1.33*x   angle 50   look_at 4*y
    rotate y*-20
}

___

So it is possible after all, but i can't achive it in Moray.

Greets Arne


S McAvoy wrote:
> On Tue, 13 May 2003 11:21:08 +0200, Arne Kleinophorst <kleinophorst@debitel.net>
> wrote:
> 
> 
>>So, you want a (media) light beam between the reflection and the object?
>>Hmm, i think i'm puzzled with that, anyone here has a clue?
> 
> 
> In case I am not explaining what I want clearly :-{ here is a mdl with the path
> of the light represented by arrowed cylinders. 
> 
> Regards
>         Stephen
>