| 摘要 |
<p>PURPOSE:To utilize the characteristics of a solar battery whose generating quantity is fluctuated by a change of solar light for the dimming of an artificial lighting required in the deeper side of a penthouse, realize a well-balanced lighting environment without using various complicated devices, and simultaneously attain reduction in facility cost, dimming, and energy saving. CONSTITUTION:A solar battery 5 conducting solar light generation is directly connected to a DC artificial lighting 7 through a power source wiring. The artificial lighting 7 may be provided only in a dark area S1 on a building deeper side difficult to take natural light. Further, the solar battery 5 and the artificial lighting 7 may be vertically arranged on a vertical line.</p> |
