What is the Sun ray brightness quality after mirror reflection and what affects it? How to get the efficiency after reflection?
Thanks Andy for your answer. :)It depends on the mirror
Normal vanity type mirrors are aluminum second surface at 90% reflectivity
The transparency of glass first or second surface silver aluminum tin nickel the finish of the surface
All are variables in mirror quality
If you want to measure the quality of an unknown mirror you need a photometer
Then you can measure and calculate the difference between source and reflection.