| 摘要 |
A security door is provided to fulfill convenience and safety simultaneously by adding the function of a window to the function of a front door. A security door comprises an outside window(1) made of an unbreakable opaque material, not glass, for privacy protection and safety, a front door password apparatus(2) installed same as the existing apparatus, a window(3) installed to be a fixable window structure to keep a window open at the fixed state, a window password apparatus(4), and a mirror(5) attached to an inside window installed to the window for outward appearance and practicality. |
