| 摘要 |
PROBLEM TO BE SOLVED: To provide an alarm in which notification of a change in an external environment is visually recognized in an easier manner.SOLUTION: An alarm is provided with: detection means for detecting a change in an external environment; and notification means 20 for notifying a user of the change in the external environment. The notification means 20 includes an alarm unit for issuing an alarm when the detection means detects the change in the external environment. The alarm unit has: a plurality of light emission parts 21 disposed at intervals; a plurality of light radiation surfaces 22 formed continuously on an outer surface of the notification means 20 and radiating light beams respectively projected from the light emission parts 21 individually at intervals to the outside; diffusion parts 23 in which light paths, leading from the light emission parts 21 respectively to the light radiation surfaces 22 corresponding to the light emission parts 21, diffuse more toward the side of the light radiation surfaces 22; and a control part 24 for controlling how to make the plurality of light emission parts 21 emit light.SELECTED DRAWING: Figure 4 |
