主权项 |
1. A sealed optical street luminaire having a luminaire housing fitted with a clear, flat lens, an LED light source assembly mounted in said housing, said LED light source assembly having a heat dissipating LED support member, a heat conductive adapter for securement in said luminaire housing with at least portions thereof in contact with at least a heat conductive portion of said luminaire housing, a reflector is secured in said luminaire housing behind said lens, a seal secured about a circumferential side wall of said reflector and disposed for sealing engagement with said lens, said LED support member having an LED support outer surface for securement of one or more high power LED modules at a predetermined angle and orientation relative to an inner reflective surface of said circumferential side wall of said reflector whereby to produce a desired oriented photometric light distribution pattern on a plane to be illuminated, said heat dissipating LED support member transferring heat generated by said LED modules directly into said heat conductive adapter for dissipation through said luminaire housing and having a heat dissipating capacity to operate the LED modules at a lower temperature than the critical thermal temperature Tc of said LED modules specified by manufacturer specification to achieve lifespan, photometric and colorometric rating of said LED modules while generating required lumens in conformity with photometric requirements for said plane to be illuminated. |