| 摘要 |
<p>An image of the eye of a person wearing a display is picked up by a CCD sensor. This image that has been picked up is acquired (S13). Based on this image that has been picked up, an evaluation is made (S14) as to whether or not the line of vision of the wearer is oriented in the direction of the image. If the line of vision of the wearer is indeed oriented in the direction of the image (S15: YES), an evaluation is made (S17) as to whether or not a predetermined visual recognition time (T0) has elapsed; this visual recognition time is the time within which it should be possible for the wearer to recognize an image. If the visual recognition time (T0) has indeed elapsed (S17: YES), it is concluded that the wearer must have recognized the image, and the amount of light from the real image that enters the eye on the opposite side is gradually decreased (S18 to S20) by an LCD lens comprising liquid crystals.</p> |
