Shade system for signal lamps, consists of set of thin laminas arranged in front of lamp glass to prevent sunlight shining directly on glass

摘要

The laminas may be horizontal vertical or inclined blades or have a cellular layout with square or rhomboidal cells. Alternative arrangements with gratings with many perforations may be used. A typical grating may be at least 5 mm thick. The arrangement of the perforations may show an arrow or other suitable traffic sign.