| 摘要 |
<p>The present invention relates to an LED direction type internal lighting road traffic sign, made by extruding a light guide pattern on a transparent acrylic panel. LED strings are arranged on an LED circuit board in series, and a transparent acrylic panel, made by extruding a light guide pattern of a dot type, and a reflecting film without the formation of the light guide pattern are used in order to reduce costs for manufacturing an LED advertisement panel and an LED road safety traffic sign instead of using the existing transparent acrylic panel and light guide film, which are expensive. A concave lens of the transparent acrylic panel is formed in a part corresponding to each LED. Surface light emission is performed by converting a view angle by curving an LED light source through the concave lens. The visibility of an advertisement panel or road safety traffic sign, displayed through high and ultrahigh brightness reflectors, is secured.</p> |
