Phosphor based illumination system having a short pass reflector and method of making same

A display, comprising:

• an illumination system, wherein the illumination system comprises:
• a light source that emits light comprising a first optical characteristic;
• a light guide comprising an output surface;
• a first interference reflector positioned between the light source and the output surface of the light guide, wherein the first interference reflector substantially transmits light comprising the first optical characteristic and substantially reflects light comprising a second optical characteristic;
• and
• emissive material positioned between the first interference reflector and the output surface of the light guide, wherein the emissive material emits light comprising the second optical characteristic when illuminated with light comprising the first optical characteristic;
• and
• a spatial light modulator optically coupled to the illumination system, wherein the spatial light modulator comprises a plurality of controllable elements operable to modulate at least a portion of light from the illumination system.