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- {
- Calculations for illumination reflected from fluorescent troughers.
- Lamp must be along a main axis, and is assumed to be infinite.
- The output of the lamp (in watts per meter) is multiplied to get
- irradiance.
-
- A1 = Distance from lamp to plane of reflector
- A2, A3 = Axis positions for lamp
-
- all values are in inches, hence the conversion to meters
- }
-
- xreflect = 39.4*A1/((Py-A2)*(Py-A2) + (Pz-A3)*(Pz-A3));
- yreflect = 39.4*A1/((Px-A2)*(Px-A2) + (Pz-A3)*(Pz-A3));
- zreflect = 39.4*A1/((Px-A2)*(Px-A2) + (Py-A3)*(Py-A3));
-