| 摘要 |
PURPOSE: A stair having an emergency lead lamp is provided to illuminate the space in an emergency as well as in the normal time using a storage battery. CONSTITUTION: A stair is made up of lots of steps. Each step comprises a marble(10), a lamp assembly(20), and a controller(200). The marble has a hole for accommodating the lamp assembly and a recess for leading cables. The lamp assembly is mounted in each hole of the marble and supplied with power from the cables installed in the recess. The controller controls on/off of the lamp assembly. |
