| 摘要 |
PROBLEM TO BE SOLVED: To provide means capable of sufficiently and actively utilizing the glass pane region in a vehicle for information advertisement by realizing such an information advertisement medium which includes the information in the reflected light of the glass pane surface and makes the information visible without affording any inconvenience at all to the visual recognition outside the window when the medium is stuck to the glass pane. SOLUTION: The translucent advertisement medium 10 comprises a first transparent layer 11 having ruggedness on its front surface, a thin-film translucent reflection film layer 12 thereon and further a second transparent layer 13 formed of material having the substantially the same refractive index as the refractive index of the first transparent layer so as to flatten the ruggedness. This advertisement medium is stuck to the glass pane of the vehicle. The route lengths within the glass pane and translucent advertisement medium through which the parallel transmitted light rays 15 and 18 pass are nearly the same and therefore the optical influences exclusive of the intensity are not exerted to the advertisement medium and optical influences, such as interference, scattering and reflection to a specified direction, are exerted to the reflected light rays 16 and 19 according to the ruggedness.
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