Written by Karl Fazakerley -Product Manager, Device Connections
Suppose you have an optical lens of some sort onto which you shine a light with a known photonic output. While most of the incident light passes through the lens, some fraction of the light is reflected and some is absorbed (the behaviour is also dependent on the wavelength of the incident light). You’d like to characterise that lens: Exactly how much light was reflected? How much passed through? What is it about the lens that prevented all of the light from passing through?