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I Sun ray brightness quality after mirror reflection

  1. Apr 26, 2017 #1
    What is the Sun ray brightness quality after mirror reflection and what affects it? How to get the efficiency after reflection?
     
  2. jcsd
  3. Apr 26, 2017 #2
    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.
     
  4. Apr 26, 2017 #3
    Thanks Andy for your answer. :)
     
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