| 摘要 |
A road sign for clearly presenting a customizable message to a driver under direct and back lighting conditions, comprising a background board with an array of mounting holes. Message elements and background elements are placed into the appropriate holes to form a mosaic message. Each mosaic message has a retroreflective portion surrounded by a translucent border. When the sign is illuminated by direct lighting, such as a driver's own headlights, the retroreflective portion will reflect much of the light so that the message will be clearly visible to the driver. When the sign is illuminated by strong back lighting, such as a low sun or oncoming headlights, the translucent border will glow brightly so that the message will be clearly seen by the driver as an outline of the message. The message elements can be rearranged to form a variety of different possible messages and graphical designs.
|
