The material properties we measure are reflectance and transmittance, or more typically, reflectance factor and transmittance factor. Transmittance and reflectance are the more general measurements, but as we will see below, when we compare a sample and a physical reference…

So you’ve got a device and you need to make it get from point A to a lot of other points with a minimal loss and as diffusely as possible. What does one do? Well, obviously, you paint the reflecting…