RETROREFLECTING MEANS

摘要

A retroreflecting means has for its objective to provide a simple and inexpensive means thereby to avoid the need for such expensive means as triple screen mirrors or corner cube reflectors, and yet provide a degree of clarity of a reflected image or a degree of accuracy in the retroreflective direction previously obtainable only when employing such expensive means. The objective is met by a construction comprising a fine pitch retroreflective sheet (2) overlaid by an array of optical lenses (5).