Mirror

[Gordoe]

I'm almost afraid to post, naaahhh!

You need to keep a few things in mind;

1. You want both visible and "invisble light" reflected.

2. Several things can happen to the light that interacts with a surface. It can be reflected by the surface, just like light on a mirror(Reflected). It can be absorbed by the surface, in which case it causes a change in the temperature(Absorbed or Emitted). In some cases the light can be transmitted through the surface(Transmitted).

R+E+T=1

The reflectors we use have a T of 0. Mirrors that get hot do not have a refectivity of 1, therefore they are absorbing some light.

Polished aluminum has an emissivity(absorption)of 0.05. Paint has an emissivity of about 0.9.

Go with polished aluminum to reflect your lights. If you want to diffuse the light get hammertone, or parabolic.