Display device, display control method, and storage medium

A display control method to control a display device using a computer, the display device comprising:

• an image generation device configured to superimpose an image on a landscape and allow a viewer to visually recognize the image;
• a control device configured to control the image generation device;
• a light projector configured to output the image as light;
• an optical mechanism provided on a path of the light and capable of adjusting a distance from a predetermined position to a position at which the light is formed as a virtual image;
• a concave mirror configured to reflect light passing through the optical mechanism toward a reflector;
• a first actuator configured to adjust the distance in the optical mechanism;
• and
• a second actuator configured to adjust a reflection angle of the concave mirror,
• wherein the display control method comprises:
• estimating a temperature of the light projector;
• and
• causing the first actuator to reduce the distance in a case in which the estimated temperature is equal to or higher than a predetermined upper limit temperature.

A non-transitory computer-readable storage medium that stores a program for a display device, the display device comprising:

• an image generation device configured to superimpose an image on a landscape and allow a viewer to visually recognize the image;
• a control device configured to control the image generation device;
• a light projector configured to output the image as light;
• an optical mechanism provided on a path of the light and capable of adjusting a distance from a predetermined position to a position at which the light is formed as a virtual image;
• a concave mirror configured to reflect light passing through the optical mechanism toward a reflector;
• a first actuator configured to adjust the distance in the optical mechanism;
• and
• a second actuator configured to adjust a reflection angle of the concave mirror,
• wherein the program causes a computer mounted in the display device to:
• estimate a temperature of the light projector;
• and
• cause the first actuator to reduce the distance in a case in which the estimated temperature is equal to or higher than a predetermined upper limit temperature.