| 摘要 |
A road sign for dew condensation prevention is provided to prevent dew condensation phenomenon without the additional power supply, and to prevent dew condensation phenomenon on letters or signs by installing an auxiliary plate using material having low heat conductivity to a metal plate and indicating letters or signs to the auxiliary plate. A road sign for dew condensation prevention comprises a vertical support(1), a horizontal support(2) installed to the vertical support, a metal plate(3) containing a reflective sheet at one side, and auxiliary plates(4,4') installed to be projected at the height of 1~5cm using material having lower heat conductivity than the metal plate at one side of the metal plate attached with the reflective sheet, wherein letters or signs are indicated on the auxiliary plates, and the surface on which letters or signs are indicated is coated with a photo catalyst.
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