SLIDE DOOR DEVICE AND ELEVATOR

摘要

In a sliding door apparatus, a first housing is disposed on a first vertical frame of a doorway frame, and a second housing is disposed on a second vertical frame. A first light emitter that includes a vertically long and continuous first light-emitting surface is disposed in the first housing. A second light emitter that includes a vertically long and continuous second light-emitting surface is disposed in the second housing. A first imaging means that captures an image of the second light-emitting surface is disposed in the first housing. In addition, a second imaging means that captures an image of the first light-emitting surface is disposed in the second housing.