Illumination derived from luminaires comprised of radial collimators and refractive structures

A light assembly comprising:

• a. a light source;
• b. a ring lens radially surrounding said light source for substantially collimating light from the light source;
• c. a single band multi-prism ring reflector formed of a plurality of individual prisms surrounding said ring lens and arranged to have total internal reflection except for exit faces formed therein which are substantially at right angles to the substantially collimated light from the light source, the individual prisms performing both refracting and reflecting functions.

A light assembly comprising:

• a. a light source;
• b. a ring lens radially surrounding said light source for substantially collimating light from the light source;
• c. a prism ring including at least two prism bands surrounding said ring lens and receiving light therefrom, each band being a prism in cross-section each of said bands having an inner surface and an outer surface, one of said surfaces of each band being inclined and adjacent another such surface and together therewith forming a continuous common surface, and the other of said surfaces of each band forming a wedge prism.

A light assembly comprising:

• a. a light source;
• b. a ring lens radially surrounding said light source for substantially collimating light from the light source;
• c. a prism ring including at least two refracting prism bands surrounding said ring lens and receiving light therefrom, said bands being formed of individual prisms and stepped concentrically from each other, and each having a cross section which includes a 90 degree, 45 degree and 45 degree prism.

A light assembly comprising:

• a. a light source;
• b. a ring lends radially surrounding said light source for substantially collimating light from the light source;
• c. a concentric band of reflecting prism rings surrounding the ring lens for reflecting collimated light from the ring lens and alternating with a band of wedge prism rings for refracting light reflected from the prism ring and also refracting direct light from the ring lens.