| 摘要 |
PURPOSE:To ensure necessary illumination intensity for checking and maintaining facility equipment, pipings, wirings, etc., installed in a space in a building ceiling and to dispense with a flash lamp or a special light source. CONSTITUTION:A reflection plate 2 for an embedded lighting equipment is constructed in part in an open/close allowable manner to perform illumination by leaking light from a light source 3 through the opening 10 of the reflection plate 2 to a space in a ceiling. Even when a flash lamp is not in hand, necessary illumination can be kept by leaking illumination light to a space in the ceiling and prompt action can be taken in emergency. In this way, there is no need for preparing a flash lamp in hand and for providing illumination with a lighter or others, therefore to keep safety. Also, there is no need for adding special lighting installations in a space in the ceiling to provide cost effectiveness. |
