ANTENNA UNIT, LIGHTING APPARATUS, TRAFFIC SIGNAL LIGHTING APPARATUS AND TRAFFIC SIGNAL CONTROL APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a signal lighting apparatus having an incorporated antenna as a new technical means for eliminating the necessity of a pole for installing an antenna and preventing impairment of external appearance of a road.;SOLUTION: The lighting apparatus 1 is provided with an optical unit 2 and an antenna 4. The optical unit 2 has a substrate 8 having an LED 7 mounted on its front face, and a covering member 9 having visible light permeability and covering the LED 7 in the front. The antenna 4 has a patch element 11 provided in a range between the covering member 9 and the front end of the LED 7, and a ground terminal 12 on the rear of the patch element 11. The patch element 11 has visible light permeability.;COPYRIGHT: (C)2009,JPO&INPIT