| 摘要 |
The present invention relates to a window placed on an outer wall of a building. More specifically, a louver to control an angle of a blade or to elevate the blade is integrated with an outer side, thereby controlling a dose of light emitted to the inside without an increase in costs for heating and cooling when the inside is heated or cooled by a heated or cooled window in the winter or summer. Windshield, waterproof, and soundproof properties of the window are improved. Even if the window is opened in the event of snow or rain, the inflow of snow or rain into the inside is prevented while the inside is freely ventilated regardless of weather. |
