| 摘要 |
The present disclosure relates to improved raised pavement markers (52) having a totally internal reflective lens. The disclosure also relates to methods of manufacturing the raised pavement marker. The raised pavement markers (52) described below include a housing (54) connected to a totally internal reflective lens. The totally internal reflective lens includes a retroreflective element (58) having a smooth surface generally opposite a plurality of cube corner (88) elements. A film (60) is attached to the retroreflective element at the apexes (98) of the cube corner elements (88) to form spaces (108), i. e., an air gap, between the film and the cubes. The film (60) and retroreflective element (58) cooperate to form the totally internal reflective lens. Light entering the retroreflective element through the smooth surface is retroreflected at the cube air interface. Methods of manufacturing include, for example, forming a shell with the retroreflective element and attaching the film to the apexes of the cube corner elements. |
