LED traffic signal
AssigneeLumination LLC
InventorsMark Mayer, Eden Dubuc, Patrick Martineau
Life of this patent
Estimating the term…
Abstract
A LED signal includes a housing and a cover. At least one LED is arranged on a PCB and mounted within the housing. A collimator that collimates light energy emitted by the at least one LED is positioned adjacent to the at least one LED. A diffuser is positioned adjacent to the collimator and spreads collimated light transmitted through the collimator. The PCB, the collimator, and the diffuser are disposed between the cover and the housing, and the cover provides a protective barrier between environmental conditions and the collimator and diffuser.
Claims20
An LED signal comprising:
- at least one LED arranged on a PCB;
- an optical element having a surface facing toward the at least one LED;
- a diffuser positioned adjacent to the optical element, opposite the at least one LED;
- and
- a cover positioned adjacent to the diffuser, opposite the optical element, said cover providing a protective barrier between environmental conditions and said optical element and said diffuser.
An LED signal comprising:
- a housing defining a volume;
- a circuit board having at least one LED, disposed on a surface within the housing, and facing an opening in the housing;
- a collimator adjacent to the opening in the housing and adapted to receive light energy emitted by the at least one LED;
- a spreader adjacent to the optical element and adapted to receive collimated light transmitted through the collimator;
- and
- a protective cover connected to housing, said collimator and said spreader disposed between said housing and said protective cover, and said protective cover providing a barrier between said collimator and said spreader and an environment.
An LED signal comprising:
- a housing comprising:
- a cover, and
- a base, said base having an interior area and an open end;
- at least one LED arranged on a metal core PCB, said at least one LED has a footprint;
- a substantially planar collimating element having a surface facing toward the at least one LED;
- and
- a substantially planar diffusing element having a surface facing toward the collimating element, said diffusing element having a plurality of diffusing clusters;
- said collimating and said diffusing elements disposed between said cover and said base, and said cover providing a protective barrier between environmental conditions and said collimating element and said diffusing element.
Dependencies are inferred from the claim text.