| 摘要 |
PURPOSE: A method for repairing a road sign board for dew condensation prevention is provided to easily attach a road sign board, in which a gloss material is spread, on an existing road sign board. CONSTITUTION: A method for repairing a road sign board for dew condensation prevention is as follows. A guidance plate(221) with protruded guidance characters and figures is manufactured. Multiple LEDs(222) are electrically connected to inside the guidance plate and form a parallel circuit(220). Plastic lenses are installed in order to diffuse light from the LEDs to the top of the guidance plate. An interval between the plastic lenses is filled with transparent epoxy resin in order to block humidity and dust. |
