Two stage optic for LED devices

A lighting module comprising:

• a light emitting diode (LED) light source;
• and
• a total internal reflection (TIR) optical assembly comprising:
• a refractor configured to be located proximate to the LEI) light source, and
• a reflector configured to be attached to the refractor,
• wherein the refractor is made from a material that is resistant to thermal damage when exposed to heat generated by the LED light source,
• wherein the refractor comprises a solid body that forms a lower part of the TIR optical assembly and, wherein the refractor further comprises an inner surface that defines a cylindrical channel extending longitudinally through the refractor, the cylindrical channel configured to be positioned over the LED light source.

An optical assembly fora lighting module, the optical assembly comprising:

• a refractor configured to be located proximate to an LED light source, wherein the refractor includes an upper surface that comprises a plurality of corrugations;
• and
• a reflector configured to be attached to the refractor such that a lower surface of the reflector is adjacent at least a portion of the upper surface of the refractor, wherein:
• the refractor is made from a material that is different than the material of the reflector,
• wherein the plurality of corrugations are configured to provide a direct line of sight from the LED light source to the lower surface of the reflector, and
• the optical assembly provides total internal reflection (TIR) of light rays emitted by the LED light source.