Head-mounted display device and image display system

An image supply device connected with a head-mounted display device having a drive mechanism configured to move an optical element for introducing light associated with an image to be presented to a user into an eye of the user, the optical element being moved in a direction intersecting with a visual line direction of the user, the image supply device comprising:

• an image supply part configured to supply the image to the head-mounted display device;
• an acquisition part configured to acquire an image from a camera configured to capture the image including the eye of the user;
• and
• a display position control part configured to output a control instruction to operate the drive mechanism in a manner changing the position at which the image is displayed within a field of view of the user;
• wherein the drive mechanism comprises:
• a first stage for translating the optical element in a first linear direction;
• a second stage for translating the optical element in a second linear direction;
• and
• a third stage for translating the optical element in a third linear direction,
• wherein the first linear direction is orthogonal to the second linear direction,
• wherein the second linear direction is orthogonal to the third linear direction, and
• wherein the first linear direction is orthogonal to the third linear direction.

A non-transitory computer-readable information storage medium that stores a program for a computer connected with a head-mounted display device having a drive mechanism configured to move an optical element for introducing light associated with an image to be presented to a user into an eye of the user, the optical element being moved in a direction intersecting with a visual line direction of the user, the program comprising:

• by an image supply part, supplying the image to the head-mounted display device;
• by an acquisition part, acquiring an image from a camera configured to capture the image including the eye of the user;
• and
• by a display position control part, outputting a control instruction to operate the drive mechanism in a manner changing the position at which the image is displayed within a field of view of the user to a position determined in accordance with the position of the eye of the user within the image captured by the camera, the determined position being opposite the eye of the user;
• wherein the drive mechanism comprises:
• a first stage for translating the optical element in a first linear direction;
• a second stage for translating the optical element in a second linear direction;
• and
• a third stage for translating the optical element in a third linear direction,
• wherein the first linear direction is orthogonal to the second linear direction,
• wherein the second linear direction is orthogonal to the third linear direction, and
• wherein the first linear direction is orthogonal to the third linear direction.