| 摘要 |
PROBLEM TO BE SOLVED: To easily adjust the width of a monitor area without increasing cost. SOLUTION: An automatic door opening/closing control switch 10 is provided with a pair of optical units 12a, 12b constituted by enclosing light emitting parts for irradiating light toward a monitor area A of an automatic door 2, and light receiving parts for receiving reflected light from the monitor area A, inside a lens box with a lens provided at a face opposed to the monitor area A. The control switch 10 has an outer case 11 fitted to a transom part 3 (or ceiling) constructed above the automatic door 2, and a pair of optical units 12a, 12b is rotatably placed side by side in the outer case 11 through rotating shafts 14, 14 almost parallel with the floor face F of the monitor area A. |
