Lighting system for transmitting and releasing luminescent radiation

A lighting system which utilizes fluorescent species to generate fluorescently emitted radiation within a luminescent concentrator, said lighting system comprising:

• a luminescent concentrator containing fluorescent species,
• an optical conduit optically continuous with the luminescent concentrator, and a luminaire means, optically continuous with said optical conduit, said luminaire means being adapted to be located in an area to be illuminated,
• wherein light is provided by the fluorescent radiation emitted within said luminescent concentrator,
• the lighting system being fabricated of light propagating material and having surfaces which define an optically continuous solid optical system for enabling said light to propagate therethrough by total internal reflection off the surfaces,
• and wherein said luminaire means contains at least one region allowing an internally trapped portion of the fluorescent radiation within the lighting system to acquire an angle of incidence to a surface of the luminaire means that enables release of said internally trapped portion of the fluorescent radiation from the luminaire means.