To make influence on human body especially on the visual sense recognized in advance and then notify it by starting the display of a video after a warning screen is displayed by a control part.
When a power source is supplied to the control part 33, the first warning screen is displayed. The first warning screen is a blue back screen obtained by muting the video and a sound. Then, a warning sentence for confirming an attaching position is displayed and a mark is displayed at the four corners of the screen by a white color. When a confirming switch 8 is depressed within a prescribed time after the first warning screen is displayed, the second warning screen is displayed. The second warning screen is the blue back screen obtained by muting the video and the sound. Then, an warning sentence for preventing the effect and the like from being exerted on the human body is displayed by the white color. When the second warning screen related to the abnormality and the fatigue of eyes is confirmed and the switch 8 is depressed within the prescribed time, a notice screen for notifying a check screen is displayed. On the notice screen, a notice sentence for notifying that a check for preventing visual obstruction and the like from occurring is executed on a next screen is displayed by the white color.
TAKAHASHI DAIJI
OKOSHI YOSHIO
