An anti-motion sickness device fitted to a motor vehicle including a triaxial accelerometer to detect the vehicle accelerations along three axes and to emit a corresponding acceleration signal; a display component of light markers to form at least one first and second artificial horizon lines at first and second inner surface, respectively of the motor vehicle. The device includes a control unit for receiving the acceleration signals and for driving the display wherein the artificial horizon lines are aligned in a horizontal plane perpendicular or substantially perpendicular to the gravity vector regardless of vehicle accelerations. The control unit is configured to process the acceleration signals, prior to the control of the display to determine in real time an acceleration frequency according to each of the accelerometer axes and to drive the display only when the acceleration frequency is below a threshold frequency, below which the motion sickness likely occurs.

An anti-motion sickness device for a motor vehicle includes a triaxial accelerometer to detect vehicle accelerations along three axes and to emit a corresponding acceleration signal; a display component of light markers to form two artificial horizon lines at two inner surfaces, respectively of the vehicle. The horizon lines are perpendicular or substantially perpendicular to each other. The device includes a control unit for receiving the acceleration signals emitted by the accelerometer and capable of driving the display component such that the horizon lines are aligned in a horizontal plane, perpendicular or substantially perpendicular to the gravity vector regardless of vehicle accelerations. The position of the horizontal plane along a direction parallel to the gravity vector varies as a function of a physical parameter related to the person sitting in the vehicle by being positioned adjacent the first inner surface and in front of the second inner surface.

Systems, apparatus, computer implemented methods, and computer program products to enhance the operation of a vehicle. A HUD apparatus includes a laser light source to generate laser light to be reflected an optical member, one or more elastically deformable position adjustment members, and one or more UV light sources. The elastically deformable position adjustment members are operable to adjust a spatial orientation of the optical member, and include one or more photochromatic regions to facilitate movement of the one or more elastically deformable position adjustment members from a contracted state to an expanded state in response to exposure to UV light emitted by the U light source(s). In that way, adjustments in the spatial orientation of the optical member and a change in direction of laser light reflected by the optical member as obtained.

A holographic display system for a motor vehicle includes a light source for generating a beam of coherent light and a spatial light modulator (SLM) having a two-dimensional pixel array. The two-dimensional pixel array modulates the beam of coherent light for generating a plurality of subframes, with each subframe being associated with one of a plurality of partial fields of view. The system further includes a scanner for directing the subframes onto associated sections of a display surface. The system further includes a computer having a memory including instructions, such that a processor is programmed to control the two-dimensional pixel array of the SLM for generating the subframes. The processor is further programmed to control the scanner for directing the subframes onto associated sections of the display surface and displaying a reconstructed image within a full field of view, which includes each of the partial fields of view.

A method for controlling a display device in a motor vehicle includes detecting a person's body posture using sensors that generate corresponding sensor values, and determining, based on the detected sensor values, whether the person is in a normotonic posture. The method also includes determining a distance between the person's eyes and the display device if the person is determined to be in a normotonic posture, and adjusting predetermined display parameters on the display device based on the distance of the person's eyes from the display device.

An image rendering apparatus includes a light source unit, a detecting unit, an optical scanner, a light source driving unit, and an adjusting unit. The light source driving unit is configured to control the light source unit in such a way that a rendered image is generated by the scan of the optical scanner inside a scan area scanned by the optical scanner and that a characteristic laser beam is emitted at a position and in a pattern corresponding to a rendered content of the rendered image. The rendered image includes an indicator related to a speed of a vehicle. The light source driving unit is configured to control the light source unit to emit the characteristics detecting laser beam in such a way that a scale for the indicator related to the speed of the vehicle is rendered.

A system and method are provided and include a light source projector with a positional actuator mounted on a subject vehicle that projects laser lines on a roadway upon which the subject vehicle is traveling. A controller receives steering angle data from a steering system of the subject vehicle, the steering angle data corresponding to a steering angle of the subject vehicle. The controller determines a turning path of the subject vehicle based on the steering angle data and controls the positional actuator to project the laser lines on the roadway to correspond to the determined turning path of the subject vehicle.

The invention relates to a display device (1) comprising: - a light source (20) designed to generate a source light beam (S) extending over a predetermined wavelength range; - a diffractive optical element (40), the operating range of which is adapted to said wavelength range and which is arranged to receive said source light beam (S) and to transmit an image light beam (I); and - a dichroic filter (50) placed in the path of said image light beam and the passband of which at least partially covers said wavelength range so as to at least partially transmit said image light beam.

A device for data projection, comprising a holographic element to be arranged by a windshield. An imaging device comprising a first imaging system is arranged at a first angle with respect to the holographic element and configured to illuminate the holographic element at a first illumination angle with first illumination light modulated with first image data. A second imaging system is arranged at a second angle with respect to the holographic element and configured to illuminate the holographic element at a second illumination angle different from the first illumination angle with second illumination light modulated with second image data such that on the holographic element the first illumination light overlaps with the second illumination light. The holographic element comprises a first volume hologram structured to be angle-selective for light under the first illumination angle and to generate a first two-dimensional virtual image at a first fixed distance from the holographic element corresponding to the first image data, and a second volume hologram structured to be angle-selective for light under the second illumination angle and to generate a second two-dimensional virtual image at a second fixed distance from the holographic element different from the first distance corresponding to the second image data, such that the first and second images are viewable separately and simultaneously by a person.

A driving consciousness estimation device includes a driving readiness estimation unit configured to estimate a driving readiness relating to a driving consciousness of the driver from a driver's reaction to the travelling environment, a driving task demand estimation unit configured to estimate a driving task demand which is an index required for the driver with respect to the driving readiness from the travelling environment, and an attention awakening unit configured to execute awakening of attention for the driver relating to the driving of the vehicle based on the result of comparison between the driving readiness and the driving task demand.