| 摘要 |
<p>A night switch indicating device comprises a control unit (4), a light sensing unit (1) connected to the control unit (4) and used for generating a switch-off signal or a switch-on signal according to the intensity of the received ambient light or illuminating light, and a backlight indicating unit (3) connected to the control unit (4) and used for indication. The control unit (4) controls the backlight indicating unit (3) to emit light according to the switch-on signal sent by the light sensing unit (1). The backlight indicating unit (3) is arranged around a switch (2) or at the center of the switch (2), which increases the aesthetic feeling of the switch (2). Under the control of the control unit, the backlight indicating unit (3) only emits light when receiving the switch-on signal sent by the light sensing unit (1) or the switch (2) is off, so that it is energy-saving and environment-friendly, and the service life of the backlight indicating unit (3) is prolonged.</p> |
