The present invention is directed to an optical device for augmented reality using total internal reflection, the optical device including: an optical means for transmitting at least part of real object image light toward the pupil of an eye of a user; wherein a total internal reflection space configured to transfer augmented reality image light, output from an image output unit, toward the pupil of the eye of the user is formed inside the optical means; and wherein the total internal reflection space is filled with a medium having an index of refraction lower than the index of refraction of the optical means, and the augmented reality image light transferred to the total internal reflection space through the inside of the optical means is reflected by total internal reflection on the total internal reflection space and then transferred toward the pupil of the eye of the user.

A head-up display device and a transportation device are provided. The head-up display device includes a light source, a scanner configured to scan light emitted from the light source to form scanned light, an angle adjuster configured to change an exit angle of the scanned light, a display unit configured to form an image according to the scanned light from the angle adjuster, and a projection assembly configured to project the image formed on the display component to a selected area.

The disclosure relates to the technical field of intelligent devices for vehicles, and particularly provides an augmented reality head-up display system for a vehicle, and a vehicle. The disclosure aims to solve the problem of an augmented reality head-up display system for a vehicle in the prior art usually having a large volume of a head-up controller host, poor heat dissipation of an image projection main optical head, a complex imaging light path, large space requirements for a dashboard, and poor imaging quality. To this end, in the disclosure, the vehicle includes a dashboard, and the augmented reality head-up display system includes an image projection main optical head, a head-up controller host, and a reflective imaging plate. The head-up controller host is arranged inside the dashboard, the image projection main optical head is arranged outside the dashboard, the dashboard is further provided with a light path capable of allowing for light to enter and exit the dashboard, imaging is achieved by means of the combined action of the image projection main optical head, the head-up controller host, the reflective imaging plate and the light path, and the imaging quality is improved.

A holographic display is comprised of space-multiplexed elemental modulators, each of which consists of a surface acoustic wave transducer atop an anisotropic waveguide. Each “line” of the overall display consists of a single anisotropic waveguide across the display's length with multiple surface acoustic wave transducers spaced along the waveguide length, although for larger displays, the waveguide may be divided into segments, each provided with separate illumination. Light that is undiffracted by a specific transducer is available for diffraction by subsequent transducers. Per transducer, guided-mode light is mode-converted to leaky-mode light, which propagates into the substrate away from the viewer before encountering a volume reflection grating and being reflected and steered towards the viewer. The display is transparent and all reflection volume gratings operate in the Bragg regime, thereby creating no dispersion of ambient light.

An apparatus including a set of three illumination sources disposed in a first plane. Each of the set of three illumination sources is disposed at a position in the first plane offset from others of the set of three illumination sources by 120 degrees measured in polar coordinates. The apparatus also includes a set of three waveguide layers disposed adjacent the set of three illumination sources. Each of the set of three waveguide layers includes an incoupling diffractive element disposed at a lateral position offset by 180 degrees from a corresponding illumination source of the set of three illumination sources.

An augmented reality optical module includes a relay lens group and a reflection lens group. The relay lens group receives and converges the light emitted by the image source. The reflection lens group comprises a first lens and a second lens. The light emitted by the image source is incident to the relay lens group and converged to form the relay image at least once, the light of the last relay image is incident to a first surface of the first lens and reflected, the reflected light is incident to a first surface of the second lens and reflected, and then incident to the first lens and transmitted through the first lens to form imaging light. The ambient light is transmitted in such a manner that the ambient light is transmitted through the second lens and the first lens, sequentially, and then emitted to be superimposed on the imaging light.

The image display apparatus includes an optical system configured to introduce light from a display surface of a display element to an observer. The optical system includes in order from the display element toward the observer, a first phase plate, a semi-transmissive reflective surface, a lens, a second phase plate, and a polarization beam splitter. The display element is configured to make, at a central portion of the display surface, luminance in a normal direction in which a normal to the display surface extends higher than that in a specific direction tilted outward with respect to the normal direction, and to make, at a most edge portion of the display surface, the luminance in the normal direction lower than that in the specific direction.

There is disclosed an optical device, including a light-transmitting substrate having an input aperture, an output aperture, at least two major surfaces and edges, an optical element for coupling light waves into the substrate by total internal reflection, at least one partially reflecting surface located between the two major surfaces of the light-transmitting substrate for partially reflecting light waves out of the substrate, a first transparent plate, having at least two major surfaces, one of the major surfaces of the transparent plate being optically attached to a major surface of the light-transmitting substrate defining an interface plane, and a beam-splitting coating applied at the interface plane between the substrate and the transparent plate, wherein light waves coupled inside the light-transmitting substrate are partially reflected from the interface plane and partially pass therethrough.

Disclosed is an image stitching-based aerial image formation apparatus, including: two image sources, rear lenses and a front lens, wherein partial display contents of the two image sources overlap; the rear lenses are in one-to-one correspondence with the image sources and have a positive focal lens; the front lens is configured to converge the light rays, which have passed through the rear lenses, into a real image; the two image sources are respectively located at two sides of the plane passing through the main axis of the front lens; the images displayed by the two image sources, after having respectively passed the rear lenses and the front lens, are stitched into a real image which is a complete image.

The present disclosure includes a first optical member (light-guiding member) and a second optical member (light-guiding member) that are included in a first display device and a second display device configured to display images corresponding to left and right eyes and are configured to guide the images, a central member serving as a coupling member configured to couple these light-guiding members, and a protruding portion provided on the central member and extending in a lateral direction (±X direction) in which these light-guiding members are aligned.