Light fixture comprising a multi-functional non-imaging opitical component

A light fixture comprising:

• a) at least one light emitting source;
• b) at least one light collimating element disposed to receive light originating from the light source with a first angular full-width at half maximum intensity profile within a first input plane and redirect the light into a second angular full-width at half maximum intensity profile wherein the second angular full width is less than the first angular full width;
• and
• c) an optical cavity into which light from the light collimating element is input;
• and
• d) a light transmissive wall substantially parallel to the optical axis of the light collimating element output, wherein a face of said light transmissive wall adjacent to the optical cavity acts as an input surface and a portion of light within light transmissive wall is internally reflected to act as a lightguide;
• and
• e) a light redirecting region optically coupled to light transmissive wall which causes light to exceed the critical angle of internal reflection and outcouple from the light transmissive wall.