Re: The reflector problem

[T3D Joel Alpers <joel.alpers@xxxxxxxxxxx>]

John B wrote:

> In another list, we determined that the light coming from a point
> source located at the focus of a paraboloid is not even across the
> exit of the paraboloid.  This means a paraboloid would not make a
> good reflector for a stereo viewer.  The red button uses some sort
> of reflector.  How was its shape determined?  Remember there is a
> complicating factor here: the red button's surface is painted
> white and so is a rough (perhaps very rough?) approximation of a
> Lambertian surface.  What effect does this have?  What is the
> correct shape for a viewer reflector?

We're trying something new on this list - I've put a diagram John
drew in this discussion on a "tech3d WEB page"
Hopefully this will be a method we can use to easily share things
like diagrams, sketches, sample photos, etc. for this list without
the overhead of posting them to the entire list (which wouldn't
be a good idea. Anyway, check it out at URL:

  http://www.frii.com/~rkymtmem/tech3d.html

Now, a question: John, can you describe "a Lambertian surface"
in layman's terms, (or are you simply trying to limit the
discussion on this topic ;)  ???

Joel.


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