SIGNAL VIEWABLE FROM BOTH SIDES BY ATTACHING LENSES TO BOTH SURFACES

摘要

PROBLEM TO BE SOLVED: To obtain an economical signal by permitting it to be viewed from both sides. SOLUTION: The signal device is provided with a configuration where lenses are attached to both surfaces in each light bulb of a signal and by which the signal is made viewable from pedestrians and the drivers of vehicles on the both sides.