[Radiance-general] fiber optics?

[Rob Guglielmetti]

Hi Judy,

On Wed, May 4, 2005 6:13 am, judy lai said:
> Hallo,
>
> do IES data files exist for fiber optics lighting?

The problem with fiber is that there are so many combinations of
illuminator, lamp, fiber run length, lens, (and quality of
contractor/installation), that ies files would necessarily vary from job
to job and even fixture to fixture.  That said, some manufacturers do
provide ies files that describe the performance of one system, and then
give you some multipliers to help you accurately tailor the output of a
given installation.

http://www.fiberstars.com/cl/downloads/clIES.htm

The Fiberstars site listed above is one example, but you will note that
there is no "bend factor", and no "lousy end finishing because the
contractor was a hack factor", both of which need to be accounted for in
the simulation, yet often difficult to quantify.

So to answer your question: "yes, BUT..."  =8-)

-- 
Rob Guglielmetti
www.rumblestrip.org