A directional illuminator includes a light source, a pupil-replicating lightguide, and a tiltable reflector coupling the light source to the pupil-replicating lightguide. The exit beam angle of the light outputted by the pupil-replicating lightguide follows the in-coupling angle, and accordingly depends on the tilting angle of the tiltable reflector. The directional illuminator with steered light beam may be used to illuminate a display panel. Steering the illuminating light by the tiltable reflector enables one to steer the exit pupil of the display device to match the user's eye location(s).

A display device includes a directional illuminator providing a light beam, a display panel downstream of a directional illuminator, for receiving and spatially modulating the light beam, and a beam redirecting module downstream of the display panel, for variably redirecting the spatially modulated light beam. Steering the illuminating light by the beam redirecting module enables one to steer the exit pupil of the display device to match the user's eye location(s).

An apparatus may include a first emitter and a second emitter. The first emitter may be configured to emit visible light comprising first heads up display information to be displayed to a driver of a vehicle. The second emitter may be configured to emit infrared light comprising second heads up display information to be displayed to one or more rear seat passengers of the vehicle.

A system for controlling at least one focus aspect of adaptive spectacles (10) having at least one electrically-tunable lens (22), the system including a housing (14), which is physically separate from adaptive spectacles (10), a display screen (16) mounted in housing (14), a sensor (19) mounted in housing (14) and configured to detect a relative position of adaptive spectacles (10) with respect to display screen (16), an interface (17) configured to communicate with adaptive spectacles (10), and a controller (15) configured to receive an input signal from sensor (19), the input signal being indicative of the relative position of adaptive spectacles (10) with respect to display screen (16) and output, in response to the input signal, a command signal for sending to adaptive spectacles (10) via interface (17) to adjust the at least one focus aspect of the at least one electrically-tunable lens (22).

An image display apparatus that makes it possible to improve the tracking accuracy, while making the image display apparatus smaller in size. An image display apparatus includes a light source section that emits image display light OL used to display an image, and light CL conjugate to the image display light OL; an optical system that projects the image display light OL emitted by the light source section onto a pupil of an eye of a user, and projects the conjugate light CL emitted by the light source section onto a portion around the pupil of the eye of the user; a detector that detects reflected light that corresponds to the conjugate light CL projected by the optical system to be reflected off the portion around the pupil; and a controller that controls a position of a display-target image on the basis of the reflected light detected by the detector.

A method for measuring performance of a head-mounted display module, the method including arranging the head-mounted display module relative to a plenoptic camera assembly so that an exit pupil of the head-mounted display module coincides with a pupil of the plenoptic camera assembly; emitting light from the head-mounted display module while the head-mounted display module is arranged relative to the plenoptic camera assembly; filtering the light at the exit pupil of the head-mounted display module; acquiring, with the plenoptic camera assembly, one or more light field images projected from the head-mounted display module with the filtered light; and determining information about the performance of the head-mounted display module based on acquired light field image.

A virtual image display device includes: a switching mechanism for switching a position of a view angle including a first position and a second position; and a display control unit for displaying the virtual image in response to a switching of the position of the view angle by the switching mechanism. When the display control unit displays a specific content within the view angle at the second position after the switching mechanism switches the view angle from the first position to the second position, the display control unit starts displaying a related content preliminarily associated with the specific content before the switching of the view angle to the second position is completed.

Systems, methods, and apparatuses for an eye tracking system to track eye movement via a camera and lens module utilizing a low-profile phase element, such as a holographic optical element (HOE), or a multipurpose sensor are provided. Systems and methods may include a multipurpose sensor to detect changes in light and determine occurrence of eye movement, a lens module (e.g., waveguide) configured to project an image covering a first field of view within an eye relief zone, to a camera positioned adjacent to the lens module and configured to track eye movements within a second field of view, and a low-profile phase element positioned in front of the camera. Light reflected from the user's eyes is transmitted via lens module to the camera which responds to eye reflection data of the second field of view. Systems and apparatuses for a calibration system to perform key performance indicator testing for eye tracking systems are provided. The system may include a camera positioned in front of an artificial eye or object being tested and an eye tracking system positioned. The camera may include calibrated ground truth data for eye tracking systems. They camera may be attached to a mount with kinematic mounting features. The mount may be positioned anterior of the eye tracking system and magnetized, enabling the interchangeability of the camera and mount between different eye tracking systems. The calibration system may include a lens arranged to guide light through the eye tracking system and to the artificial eye, where the reflection of light may be observed by the eye tracking system and the camera of the calibration system.

A mini display device is provided, including: a main body, including an electronic module which includes an arithmetic processing unit, a storage unit and a power source electrically connected to the arithmetic processing unit, a mini display piece which includes at least one application software and a mini lens module which is disposed on the mini display piece, the arithmetic processing unit being communicatively connected to the storage unit and executing the at least one application software, the mini display piece being communicatively connected to the electronic module, the mini lens module including a shell which is hollow, a barrel and a lens, an end of the barrel being in communication with and end of the shell, the lens being disposed on another end of the barrel, another end of the shell facing toward the mini display piece.

A wearable device is provided. The wearable device includes space information including at least one of a location of the wearable device or a direction in which the wearable device is oriented, and transmit the space information to a mobile device, in response to satisfaction of a designated condition by a state in which first image data is received from the mobile device, display, on the display, the first image data including a first object identified based on the space information, receive modeling data associated with the first object from the mobile device, and in response to non-satisfaction of the designated condition by a state in which the first image data is received from the mobile device, generate second image data, based on the modeling data, and display the second image data on the display, the second image data including a first simplified object corresponding to the first object.