| 摘要 |
<p>PURPOSE:To decrease the operating time of the operator of an OA equipment and to prevent the deterioration in eye sight due to fatigue of the eye by detecting a distance between the operator 7 and a display device, and raising an alarm when the distance is at the outside of a prescribed range. CONSTITUTION:A distance detecting means 8 detecting the distance between the operator 7 and a display plane of the display device 2 is provided, a detection signal detected by the detecting means 8 is inputted to a comparison judging means 9, compared with a setting value (prescribed range S) inputted from a setting value input means 10 inputting a predetermined setting value, and when the result is within a prescribed range S, the alarm means 11 raises alarm. A sensor 6 as the detection means 8 and a timer 5 are activated synchronously and when the operator 7 starts working toward the device 2, it is detected and the working time is measured. Thus, the health management and the working efficiency are improved.</p> |
