A screen includes a surface inclined with respect to a reference plane. A driver moves the screen in a movement direction orthogonal to the reference plane. When forming a first virtual image serving as a virtual image on a first virtual plane whose inclination angle α with respect to an optical axis of a projector is smaller than a predetermined value, a controller is configured to hold the screen in the movement direction. When forming a second virtual image serving as the virtual image on a second virtual plane whose inclination angle ß with respect to the optical axis of the projector is larger than the predetermined value, the controller is configured to move the screen in the movement direction.

A wearable display device is disclosed and includes a main body, a heat dissipation processing module and an inflatable actuation module. The main body includes a front cover, a lateral cover, an inflatable airbag, a circuit board and a microprocessor. The heat dissipation processing module is configured to perform heat exchange with the microprocessor, and includes a first actuator, a heat pipe and a cooling chip. The inflatable actuation module includes a base, a ventilation channel, a second actuator and a valve component. When the second actuator and the valve component are driven, the valve component is opened and the second actuator is enabled, the gas is transported and inflates the inflatable airbag through the ventilation channel, so that the main body is stably fitted and positioned on the head of the wearer.

A light projector for an augmented reality headset is disclosed. First and second optical arrangements receive light from a polarising beam splitter so that light is reflected, focused and directed back towards the polarising beam splitter from each optical arrangement. The first and second optical arrangements comprise first and second mirrors and first and second quarter-wave plates. The polarising beam splitter receives and combines light from the first and second optical arrangements so that the combined light, which is unpolarised, is provided to an exit pupil. The first and second optical arrangements are angled relative to one another so that the image from the first optical arrangement is aligned with the image from the second optical arrangement.

Provided is a glass type electronic device in which an optical driving assembly is disposed in a spatially efficient position and which stably implements an optical path. The glass type electronic device includes a binocular lens provided to correspond to both eyes of a wearer, a lens frame fixed to the binocular lens and seated on a head of the wearer, an electronic component case fixed to the lens frame, an optical driving assembly mounted in the electronic component case for emitting an image light to the binocular lens, and a battery supplying power to the optical driving assembly. The electronic component case is disposed to correspond to an area between superciliary arches of the wearer.

Provided is a glass type electronic device including a binocular lens, a lens frame fixed to the binocular lens and seated on a head of the wearer, an electronic component case fixed to the lens frame, and an optical driving assembly mounted in the electronic component case and emitting light to the binocular lens. The optical driving lens can include an image source panel for generating light corresponding to a content image, an emitting lens group provided to expose an exit surface to an outside of the electronic component case and for adjusting an exit angle and a focal length of the light, and a reflective mirror provided to expose a reflection surface to an outside of the electronic component case and for reflecting the light, emitted from the emitting lens group, to the binocular lens.

A head-mounted device may have a head-mounted housing. The head-mounted housing may have rear-facing displays that display images for a user. The images are viewable from eye boxes while the head-mounted device is being worn by the user. An electrically adjustable face cushion may be provided between the head-mounted housing and the user's face. The electrically adjustable face cushion may have adjustable elements such as adjustable inflation air bags. Airflow control systems formed from electrically adjustable airflow valves, check valves, and air pumps may be used in controlling inflation of the adjustable inflation air bags in responses to changes in operating mode of the head-mounted device and/or in response to sensor data or other input. The sensor data may include strain gauge measurements of facial pressure on the air bags.

The invention provides an augmented reality system including a wearable device in the form of a headset for providing a person wearing the headset with an augmented view of a real-world environment. The headset includes a display unit positioned to be within a field of view of a person wearing the headset. The headset further includes a processing subsystem built into the headset and operable to receive a wireless signal comprising compressed augmented reality content from a remote server system and to further display the augmented reality content on the display unit.

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.

A waveguide assembly is provided. The waveguide assembly includes a pair of pupil-replicating waveguides. The first pupil-replicating waveguide is configured for receiving an input beam of image light and providing an intermediate beam comprising multiple offset portions of the input beam. The second pupil-replicating waveguide is configured for receiving the intermediate beam from the first pupil-replicating waveguide and providing an output beam comprising multiple offset portions of the intermediate beam. The input beam may be expanded by the waveguide assembly in such a manner that pupil gaps are reduced or eliminated.

A display module includes an image light generation device, a light-guiding member, a first reflection surface configured to reflect the imaging light incident via the light-guiding member, a first diffraction element configured to diffract the imaging light, and a second diffraction element configured to diffract the image light and form an exit pupil. The image light is sequentially incident on a first deflection surface, a second deflection surface, a second reflection surface, a third reflection surface, a fourth reflection surface, and a third deflection surface inside the light-guiding member, and a distance from a reference position where an optical axis of the exit pupil and an emission surface intersect to the second deflection surface is longer than a distance from the reference position to the first deflection surface and longer than a distance from the reference position to the second reflection surface.