| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a retroreflector which can be clearly visually confirmed any time day or night and even at dawn or at dusk and visually confirmed without assimilating a background even in a snowy region. <P>SOLUTION: By providing a white translucent intermediate film on the upper side of base material having retro-reflectivity and providing a color transparent layer on the upper side of the intermediate film further, the color of the color transparent layer is visually confirmed by a driver because sunlight is reflected by the white translucent intermediate film under bright environment in the daytime, and the compound color of the base material and the transparent layer is visually confirmed by the driver because the light of the headlight of an automobile is transmitted through the translucent intermediate film and reflected by the base material having the retro-reflectivity when it is dark, whereby the retroreflector which is extremely excellently visually confirmed any time day or night by controlling the color of the base material and the transparent layer is provided. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
