A head-up display device includes a display element, a beam splitter, a movable mirror, first and second mirrors, and a movable unit. The display element emits light to form a display image. The beam splitter being an optical member that reflects light or through which light is transmitted, reflects light emitted from the display element. The movable mirror reflects light reflected off the beam splitter. The first and second mirrors that reflect light movable mirror, or through which the light transmitted through the beam splitter is transmitted, project a virtual image. The movable unit adjusts a distance between the movable mirror and the beam splitter to adjust a projection distance of the virtual image.

A head mounted display including a first optical system, a second optical system, a first display, a second display, a first driver and a first adjusting system is provided. The first display is assembled to an object side of the first optical system. The second display is assembled to an object side of the second optical system. The first adjusting system is connected to the first driver, the first optical system, the first display and the second display. The first driver drives the first adjusting system to adjust a distance between the first display and the second display in a first mode. The first driver drives the first adjusting system to adjust a distance between the first display and the first optical system in a second mode.

A head-up display includes a transmission mechanism, a first cover, a second cover and a driver. The first cover is connected to the transmission mechanism and slidable with respect to the transmission mechanism. The second cover is separably connected to the first cover. The driver is configured to drive the transmission mechanism to operate. Wherein during a first state to a second state of the head-up display, the first cover and the second cover are connected to each other and move together in an opening direction; during the second state to a third state of the head-up display, the first cover is separated from the second cover.

The present invention relates to a head-mounted display including a pair of headphones having a built-in speaker for outputting sound, a first arm rotatably coupled to the pair of headphones to display an image, a second arm coupled to the pair of headphones so as to relatively rotate with the first arm to cover or uncover a front surface of the first arm, and a control unit controlling the image output to the first arm and the sound output to the headphones according to positions of the first arm and the second arm.

A battery system for a head-mounted display is provided. A first arm member has one or more interior walls defining a first chamber, wherein one or more first batteries are positioned in the first chamber of the first arm member. A second arm member has one or more interior walls defining a second chamber, wherein one or more second batteries are positioned in the second chamber of the second arm member. A base member is coupled to the first arm member and the second arm member. The base member has a base member power connector positioned along an exterior surface. A first auxiliary battery removably couples to the exterior surface of the base member via a first fastener, the first auxiliary battery having a first side and a second side. A first auxiliary battery power connector is positioned on the first side and aligns with the base member power connector.

A head-mounted display device includes: a first adjustment member including a first rotating portion having a first direction as an axial direction of a rotation axis and a first extending portion extending to one side in the first direction; a second adjustment member that is configured to be fitted to the first extending portion, a first display unit fixed by the second adjustment member; and a first elastic member of which one side is in contact with the first adjustment member, of which the other side is in contact with the second adjustment member, and that is covered by the first extending portion and the second adjustment member.

The head mounted display includes: a headgear having an attachment that comes into close contact with the face of the user in a manner such that the user can see at least the front and a fixture that is attached to the attachment and is used for fixing the attachment to the head of the user while maintaining the close contact with the face of the user; a display unit that has a video display unit configured to display video and is detachable from the attachment; and a lock mechanism that is provided in at least one of the attachment or the display unit, and fixes the display unit to the attachment in a manner such that the fixing can be released. The attachment and the display unit are configured to engage with each other in the front-rear direction of the user.

An optical device includes a movable unit that supports a glass plate, axis portions that swingably support the movable unit around a swing axis, a support unit that supports the axis portions and, a permanent magnet that is provided in the movable unit, and a coil that is disposed to face the permanent magnet, and a coil support unit that is supported by the support unit and supports the coil. A conductive wire is wound around the coil and a drawn wire is drawn from the side of the inner circumference of the coil. The coil support unit includes a through hole overlapping the inner circumference of the coil and the drawn wire is inserted through the through hole.

A rotary structure module applied to a head-up display device includes a curved mirror assembly, at least one bracket and a driving element. The curved mirror assembly has a rotation axis, and includes a curved mirror, a fixing frame, a rotating shaft and a counterweight. The rotation axis corresponds to the rotating shaft, and the rotating shaft is passed through the fixing frame. The curved mirror and the counterweight are respectively fixed on two opposite sides of the fixing frame and located on two sides of the rotating shaft, so that the center of gravity of the curved mirror assembly is overlapped with the rotating axis. The bracket is sleeved on the rotating shaft, and the driving element drives the curved mirror assembly, so that the curved mirror rotates around the rotating shaft as the rotation axis.

A mirror holding structure includes: a holder; at least one protrusion part provided to one of a mirror body and the holder; at least one reception part provided to the other of the mirror body and the holder and having an insertion hole in which the at least one protrusion part is to be inserted; and at least one elastic part located between an outer peripheral surface of the at least one protrusion part and an inner peripheral surface of the insertion hole and being elastic.