Light collection system converting ultraviolet energy to visible light

A light collection system, comprising:

• a) a light source comprising a metal halide lamp with a bulbous section for emitting radiant energy in the direction of first and second portions of the bulbous section;
• b) a coating on the bulbous section to direct visible light from the light source to the first portion;
• c) a coating on the bulbous section to direct UV energy from the light source to the second portion;
• d) a first angle-to-area converter for receiving visible light in the first portion and decreasing the angle of the visible light to a desired angle;
• e) a second angle-to-area converter for receiving UV energy in the second portion and decreasing the angle of the UV energy to a desired angle;
• f) a phosphor layer for receiving UV energy downstream of the second angle-to-area converter for converting the UV energy to visible light;
• g) a third angle-to-area converter for receiving visible light from the phosphor and reducing the angle of such light to an angle optimized for entering a fiber optic cable;
• and
• h) a fourth angle-to-area converter for receiving light from the second angle-to-area converter for increasing the angle of UV energy to about 90 degrees before delivering such energy to the phosphor layer;
• and
• i) the first and fourth angle-to-area converters are configured to create visible light a half angle below about 50 degrees.