| 摘要 |
Provided are: a plurality of unit control apparatuses; and a plurality of unit light emitting apparatuses controlled by the unit control apparatuses, wherein at normal times, light emitting elements of a plurality of light emitting apparatuses of the plurality of unit light emitting apparatuses are continuously lit at an illuminance of 100%, and at guidance, the illuminance of the light emitting elements of the plurality of light emitting apparatuses of the plurality of unit display apparatuses is attenuated to 30%, and then the illuminance of the light emitting elements of the plurality of light emitting apparatuses of the plurality of unit display apparatuses is sequentially controlled to 100% based on count values stored in an emergency exit number count value storage unit to generate an optical flow toward a guidance direction. |
