Engineering Light

Once a light source has been established it matters no at all how the light is directed. If it is constrained by the sides of the "goblet" (and partly reflected from its walls), then the intensity of the light will be greater than if this restraint is not present. However, the quantity of light being spread will be the same, and you cannot make the amount stronger by shaping the sides of the place from where the light begins to be radiated. Indeed, since the reflection is imperfect a small amount will be lost. If this were not a technical matter, then there would possibly be some justification in a philosophical sense for inverting the "goblets" and apparently magnifying some of the radiation. Reply