Patent ID: 9464768
Filing Date: 2016-10-11
CPC Classification: F21K,F21S,G02B

Claim Text:
1. A light bar comprising: a plurality of light heads, each light head comprising: a heat sink; a circuit board in heat transfer communication with the heat sink, the circuit board having an electrically conductive pathway; a light source mounted on the circuit board such that heat generated by the light source when energized is transferred via the circuit board to the heat sink, the light source electrically connected to the electrically conductive pathway of the circuit board; a collimating base having a cavity for receiving the light source, the collimating base having an inner surface positioned adjacent the circuit board, interior surfaces, and an outer transmissive surface, the interior surfaces reflecting light generated by the light source, and the light reflected by the interior surfaces propagating toward the outer transmissive surface and emitted by the outer transmissive surface as substantially collimated light; and a collimating lens structure projecting away from the outer transmissive surface of the collimating base and comprising first spaced-apart radial lens segments and second spaced-apart radial lens segments having respective first and second transmissive surfaces from which light generated by the light source is emitted as substantially collimated light, the collimating lens structure in optical communication with the cavity and having a central axis from which the first spaced-apart radial lens segments extend and from which the second spaced-part radial lens segments extend, the first transmissive surfaces of the first radial lens segments located farther from and the second transmissive surfaces of the second radial lens segments located nearer to the cavity in the collimating base, and the substantially collimated light emitted by the outer transmissive surface of the collimating base and the first and second transmissive surfaces of the collimating lens structure combine to form a substantially collimated transmitted light beam.