The head-up display device includes a display element that emits image light and a virtual image optical system. The virtual image optical system includes a lens unit and a free curved surface mirror disposed along the emission direction of the image light in this order from a position close to the display element. The display element is disposed with a tilting attitude with respect to the optical axis of the lens unit with an end on the housing aperture side in an emission surface being close to an incidence surface in the lens unit and with an end on the opposite side of the housing aperture in an emission surface being apart from an incidence surface in the lens unit. The lens unit has an optical characteristic of optically enlarging an optical path length difference according to a virtual image distance difference.

Devices, methods and computer program products that facilitate automated adjustment of size or configuration of head up display image in a vehicle. A device can include a memory and a processor that executes computer executable modules. The computer executable modules can include: a head up display that generates an image visible to a driver of a vehicle within an eye box, a detection module that determines position of the driver's eyes or head relative to position of the eye box, and an adjustment module that adjusts size or configuration of the image within the eye box in response to the determined driver's eye or head position.

A head-up display includes a mirror body, a mirror having a shaft serving a rotary axis, a bearing member which holds the shaft of the mirror to be rotatable, a torsion spring through which the shaft penetrates and which urges the mirror in a predetermined rotational direction of the rotary axis with respect to the bearing member, and a housing which accommodates the mirror, the bearing member, and the torsion spring. The torsion spring is disposed on an opposite side opposite to the mirror with respect to the bearing member. The bearing member includes a protrusion to which one end of the torsion spring is hung. The housing includes a depressed portion fitted to the bearing member to fix the bearing member.

In some implementations, a device may identify objects associated with the route based on one or more images associated with a selected route. The device may generate a model associated with the route including the scenery, wherein the scenery includes models of the objects based on geographic locations of the objects and three-dimensional spatial information of the objects. The device may determine a visual reference point for the virtual reality driving session based on at least one of vehicle information associated with the vehicle or user information. The device may provide, to a virtual reality device, presentation information that causes the virtual reality driving session to be displayed by the virtual reality device from a perspective of the visual reference point within a vehicle model associated with a selected vehicle placed in the model of the route with the scenery.

A vehicle includes a transparent display provided on the dashboard to face the front of the driver and provided to be able to descend inside the dashboard or ascend above the dashboard, an input device provided to obtain a user input, and a controller configured to adjust an ascending height of the transparent display and to adjust transparency of the transparent display, according to a driving mode selected by the user input.

The invention provides a viewing system including an augmented reality system that generates a visual presentation to a user based at least in part on an IPD of the user, and an IPD compensator that adjusts the visual presentation based on an IPD compensation factor.

Methods and systems for presenting digital content on a see-through display are disclosed. In some embodiments, the digital content is presented based on a display attribute associated with personal information related to a user of a wearable head device comprising the see-through display. In some embodiments, the digital content is associated with a geo-spatial location of a physical structure, and presenting the digital content on the see-through display comprises indicating a spatial relationship between the digital content and the physical structure.

Aspects for active alignment for assembling optical imaging systems are described herein. As an example, the aspects may include aligning an optical detector with an optical component. The optical component is configured to alter a direction of one or more light beams emitted from an image displayed by an optical engine. The aspects may further include detecting, by the optical detector, a virtual image generated by the one or more light beams emitted by the optical engine; and adjusting, by a multi-axis controller, an optical path of the one or more light beams based on one or more parameters of the virtual image collected by the optical detector.

The disclosed head-mounted display assemblies may include a first eyecup and a second eyecup that are configured for respectively positioning a first lens and a second lens in front of intended locations of a user's eyes when the head-mounted display assembly is donned. The first eyecup and the second eyecup may be movable relative to each other to adjust for an interpupillary distance of the user's eyes. A single near-eye display screen may be configured for displaying an image to the user through the first and second eyecups. An enclosure over the single near-eye display screen may include a first transparent component positioned between the first lens and the single near-eye display screen and a second transparent component positioned between the second lens and the single near-eye display screen. Various other methods, devices, systems, and assemblies are also disclosed.

According to at least one aspect, the present disclosure provides a head-up display device comprising: a housing; a plurality of light sources housed at the housing and configured to emit light; a display panel configured to display an image based on the light emitted from the plurality of light sources; and a Fresnel lens configured to magnify the image displayed at the display panel. According to another aspect, the present disclosure provides a head-up display device configured to project an image on a windshield of a vehicle, comprising: a housing; a plurality of light sources housed at the housing and configured to emit light; and a display panel configured to display an image based on the light emitted from the plurality of light sources, wherein the plurality of light sources are divided into a plurality of groups, each group being supplied with a current having a mutually different magnitude.