| 摘要 |
PROBLEM TO BE SOLVED: To provide an advertising board sign with built-in solar cells and a daylighting function by which a sign can be displayed by power generation and a light guide plate, and light can be taken in the room.SOLUTION: The sunlight passes a transparent glass 6 and a glass light guide plate 4 sign, and a part of light 18 hits photovoltaic power generating cells 5 and is converted into electric energy, and other light 19 passes a transparent part between the cells to take the sunlight in the room. Power generated in the photovoltaic power generating cells is supplied for an edge light LED 9 installed in the edge part of the glass light guide plate sign, and is displayed as an advertising sign through day and night. Power generated in the daytime is charged for a battery 10 built in a sash sill 16. The glass light guide plate sign emits light transmitted from an LED light source by performing silk printing with ceramic printing light-emitting ink on a rear surface of a high transmission glass onto the glass surface by reflection dots 20, and by controlling density of the reflection dots, causes partial or whole light emission onto gradation of the glass surface.SELECTED DRAWING: Figure 2 |
