What affects the light intensity and light output geometry?

  1. These are some of the factors I brainstormed that goes into the functionality of a spotlight:

    1) Light output of the light source (measured in luminous flux, if I recall correctly)
    2) The reflective potential of the reflectors surrounding the light source
    3) The geometry of the reflectors; the shape of the reflector is always parabolic
    4) The position of the light source from the focus of the parabolic reflector; more generally, the position of the light source from any reflector


    I'm going to try to design a DIY lamp so I'm brainstorming all of the available constraints of the project.
     
  2. jcsd
  3. Simon Bridge

    Simon Bridge 14,470
    Science Advisor
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    Cool - was there a question in there?

    You may want to consider what role a lens may play in spotlight design too.
     
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