TIR Optic

Patch 1.8.3

 * : adjusted and simplified the  description.

Trivia
TIR lenses are often used in LED flashlights due to their excellent ability to extract and control all the light produced by LEDs, far superior to older types of reflector lenses.
 * The abbreviation TIR stands for "Total Internal Reflection", describing the effect of completely reflecting a light ray reaching an interface with a less dense medium when the angle of incidence exceeds a critical angle.
 * Increases the Beam brightness by .
 * Increases the Blindness duration by .