| 摘要 |
PROBLEM TO BE SOLVED: To provide a tunnel internal wall plate capable of maintaining visual guidance effect and sufficiently exerting glare-proof effect.SOLUTION: A tunnel internal plate is installed on an internal wall face of a tunnel. The tunnel internal wall plate is a laminated glass which comprises: a first glass plate which is disposed on a passage side of the tunnel; a second glass plate which is disposed on the internal wall face side of the tunnel; and a resin layer between the first glass plate and the second glass plate. A gloss level of the first glass plate in a mirror reflection direction of light entered at 60 degrees to a normal direction of a face on the passage side is 90% or less.SELECTED DRAWING: Figure 1 |
