A vehicle head-up display that automatically repositions an eyebox by measuring a distance to a driver's face and a method of controlling the same are disclosed. A method of controlling a vehicle head-up display according to some embodiments includes performing a distance measurement by using a displacement sensor for measuring a distance to a face of a driver and performing a display position adjustment including adjusting a display position and a display angle of head-up display information based on a measured distance to the face of the driver. Positioning of driver's face and then automatically adjusting the display position and the display angle of the head-up display information adaptively to individual drivers can reduce the inconveniences of the manual setting of the head-up display in a vehicle frequented with car-sharing drivers.

A head-mounted display may include a display system and a lens system in a housing. The head-mounted display may include control circuitry that operates the head-mounted display in an active use mode and a protected mode. In the protected mode, the display system may be protected from collisions with the lens system. Placing the head-mounted display in the protected mode may include using an actuator to increase the distance between the display system and the lens system, may include injecting fluid between the display system and the lens system, and/or may include deploying a protective layer between the display system and the lens system. The control circuitry may determine whether to operate the head-mounted display in protected mode or active use mode based on sensor data, on/off status information, location information, and/or other information.

An electronic device may include a display module that generates light and an optical system that redirects the light towards an eye box. The system may include an input coupler on a waveguide and a lens that directs the light towards the input coupler. The input coupler may include a prism having a reflective surface that reflects the light into the waveguide. The reflective surface may be curved to provide the light with an optical power. The prism may be configured to expand a field of view of the light. A birefringent beam displacer may expand the effective pupil size of the light. The lens may include lens elements that converge the light at a location between the lens elements and the waveguide. A switchable panel may be placed at the location and toggled between first and second orientations to increase the effective resolution of the light.

Provided is a head-up display apparatus for a vehicle. The apparatus includes combiner assembly which includes a combiner exposed outside a dashboard or hidden inside the dashboard through a slot formed in the dashboard, a driver which provides a driving force to the combiner assembly, and a slot opening/closing device which opens or closes the slot by the driving force of the driver. The slot opening/closing device includes a door which opens or closes the slot, a lever-door link of which one end is connected to the door and which rotates about a first rotation axis, and a lever of which one end is connected to the lever-door link, which rotates about a second rotation axis, and to which the combiner assembly is slidably connected.

Provided is a head-up display apparatus for a vehicle. The apparatus includes combiner assembly which includes a combiner exposed outside a dashboard or hidden inside the dashboard through a slot formed in the dashboard, a driver which provides a driving force to the combiner assembly, and a slot opening/closing device which opens or closes the slot by the driving force of the driver. The slot opening/closing device includes a door which opens or closes the slot, a lever-door link of which one end is connected to the door and which rotates about a first rotation axis, and a lever of which one end is connected to the lever-door link, which rotates about a second rotation axis, and to which the combiner assembly is slidably connected.

A method for displaying virtual content to a user, the method includes determining an accommodation of the user's eyes. The method also includes delivering, through a first waveguide of a stack of waveguides, light rays having a first wavefront curvature based at least in part on the determined accommodation, wherein the first wavefront curvature corresponds to a focal distance of the determined accommodation. The method further includes delivering, through a second waveguide of the stack of waveguides, light rays having a second wavefront curvature, the second wavefront curvature associated with a predetermined margin of the focal distance of the determined accommodation.

The invention relates to a visualization device (1), in particular a virtual reality (VR) headset or head mounted display (HMD) for transferring images of a microscopy device (100), comprising: a supporting device (2) for arranging the visualization device (1) on the head of a user, at least one mounting device (3) for mounting at least one optical display device (4) about a point of rotation on the supporting device (2), wherein there is at least one drive device (5) via which the at least one optical display device (4) on the at least one mounting device (3) is movable between an operating position (B) and a rest position (R), such that the at least one optical display device (4) can be fixed, in the operating position (B), in the field of view of the user and, in the rest position (R), outside of the field of view of the user, wherein the drive device (5) is attached in a region outside of the point of rotation of the mounting device (3) on the at least one display device (4).

Eyewear including a support structure defining a region for receiving a head of a user. The support structure supports optical elements, electronic components, and a use detector. The use detector is coupled to the electronic components and is positioned to identify when the head of the user is within the region defined by the support structure. The electronic components monitor the use detector and transition from a first mode of operation to a second mode of operation when the use detector senses the head of the user in the region.

Eyewear including a support structure defining a region for receiving a head of a user. The support structure supports optical elements, electronic components, and a use detector. The use detector is coupled to the electronic components and is positioned to identify when the head of the user is within the region defined by the support structure. The electronic components monitor the use detector and transition from a first mode of operation to a second mode of operation when the use detector senses the head of the user in the region.

Head-mountable devices can include a light projection display element that is directly coupled to an assembly that includes a waveguide. Such a direct coupling can be achieved by bonding the light projection display element directly to a lens or other optical component that is, in turn, directly coupled to the waveguide. Such an optical module can be assembled outside of the head-mountable device for precision alignment and subsequently installed as an integrated unit. These measures can help maintain component alignment while allowing a head-mountable device to be lightweight and small in size.