| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a door release warning alarm device having a simple construction and exhibiting excellent visibility at a low cost. SOLUTION: The release condition of a door 100 having a window glass 102 is warned and alarmed. This door release warning alarm device is equipped with a light source 10 provided on a door body 101, a light diffusion and irradiation part 11 set on a suitable portion of the window glass 102, and a light guide part 12 for guiding the light emitted by the light source 10 to the light diffusion and irradiation part 11. The light source 10 turns on/off interlocked with the door opening and closing operation. The light source 10 is arranged near the window glass 102, and the light guide part 12 is formed inside the window glass 102. The light diffusion and irradiation part 11 is formed by applying light diffusion treatment processing on a surface of the window glass 102 or attaching a light diffusion film thereon.</p> |
