Street light refractor

Claim 1

IN A REFRACTOR FOR USE IN A STREET LUMINAIRE COMPRISING AN INWARDLY CONCAVE REFLECTOR ELEMENT, A LIGHT SOURCE DISPOSED DOWNWARDLY OF SAID REFLECTOR, AND SAID REFRACTOR INCLUDING MEANS FOR SECURING THE SAME ADJACENT THE BOTTOM OF SAID REFLECTOR AND CONSTRUCTED FOR SURROUNDING SAID LIGHT SOURCE, SAID REFRACTOR HAVING A HOUSE SIDE SECTOR AND A STREET SIDE SECTOR, REFRACTOR MEANS POSITIONED ON SAID STREET SIDE SECTOR FOR ILLUMINATING A STREET, AND REFLECTING MEANS POSITIONED ON THE EXTERIOR SURFACE OF SAID HOUSE SIDE SECTOR FOR REFLECTING LIGHT BACK THROUGH SAID HOUSE AND STREET SIDE SECTORS, SAID REFLECTING MEANS INCLUDING PRISMS HAVING SURFACES ELONGATED IN A FIRTST DIRECTION; THE IMPROVEMENT COMPRISING; MEANS FORMED ON THE INNER SURFACE OF SAID HOUSE SIDE SECTOR AND INCLUDING SURFACE MEANS ELONGATED IN A SECOND DIRECTION TRANSVERSE TO SAID FIRST DIRECTION, SAID SURFACE MEANS CONSTITUTING MEANS FOR REFRACTING LIGHT LONGITUDINALLY THEREOF AND FOR INCREASING THE ANGLE OF INCIDENCE AT WHICH THE LIGHT LONGITUDINALLY REFRACTED THEREBY WOULD OTHERWISE STRIKE SAID SURFACES OF SAID REFLECTING PRISMS.