A display apparatus of the present disclosure includes: a left eyepiece display unit including a left-eye image display device and a left eyepiece optical system guiding a displayed left-eye display image to a left eye; and a right eyepiece display unit including a right-eye image display device and a right eyepiece optical system guiding a displayed right-eye display image to a right eye, and an image magnification upon observation by both eyes is twice or more. The left eyepiece optical system and the right eyepiece optical system each include a plurality of single lenses, and at least one of the single lenses is a free-form surface lens including a resin material. At least one of the single lenses is arranged in at least one of an eccentric state or a rotated state with respect to an optical axis of the left-eye image display device or the right-eye image display device.

A near eye display assembly includes (a) frame; (b) a combiner operably connected to the frame as a first reflective surface positionable in front of an eye of a user of the display assembly; (c) a secondary mirror operably connected to the frame as a second reflective surface positionable proximate a side of the nose adjacent to the eye of a user of the display assembly; (d) an image source operably connected to the frame and optically coupled to the secondary mirror along an optical path; and (e) an optical fold element between the image source and the secondary mirror in the optical path, and positionable proximate the temple adjacent to the eye of a user of the display assembly; wherein an intermediate image is formed in the optical path between the image source and the secondary mirror, wherein the combiner and the secondary mirror are in an off-axis folded geometry which directs images from the optical fold element to an eyebox of the near eye display assembly, and at least one of the combiner and the secondary mirror include a freeform surface, wherein the freeform component corrects optical aberrations induced by a tilting and decentering of the first reflective surface and the second reflective surface, and wherein at least the combiner includes a nanostructured meta-surface which further provides wavefront control of an image from the image source to be directed to the eyebox and enables the combiner to be positioned at a tilt angle so that unobscured images are conveyable between the optical fold element and the secondary mirror while providing an FOV of at least 30 degrees and an eyebox width of at least 5 mm.

The present technology relates to a reproduction device, a reproduction method, and a recording medium capable of suppressing influence of motion parallax and image distortion. There is provided a reproduction device including an image processing unit that performs processing including: projecting an image captured from a specific position in a real space on a projection surface arranged according to a reference position set in a virtual space; acquiring a head movement amount of a user viewing the projected image; changing, according to the head movement amount with respect to the reference position in a first direction that is at least one of a left-right direction or an up-down direction as viewed from the user, a first relative distance between the reference position and a user position in the first direction; changing, according to the head movement amount with respect to the reference position in a second direction that is a front-back direction as viewed from the user, a second relative distance between the reference position and the user position in the second direction; and causing a change amount of the first relative distance to be smaller than a change amount of the second relative distance. The present technology can be applied to, for example, a head mounted display.

To improve the visibility of the HUD virtual image in a head-up display system for vehicles, where p-polarized visible light is incident on laminated glass from the vehicle interior side.

This head-up display system is a head-up display system for vehicles, which has a light source that emits p-polarized visible light, and laminated glass to which the p-polarized visible light is incident from the vehicle interior side, and which displays a virtual image on the vehicle exterior side of the laminated glass, wherein the laminated glass is provided with a p-polarized light reflecting member in a region where the p-polarized visible light is incident, the incident angle of the p-polarized visible light to the vehicle interior side surface of the laminated glass is at least 42 deg and at most 72 deg, the laminated glass has a visible light reflectance of the p-polarized light of at least 5% when the incident angle is 57 deg, the virtual image includes a main image observed with the highest luminance and a subsidiary image observed with a lower luminance than the main image, and the ratio of the reflectance of the subsidiary image to the reflectance of the main image is at most 30% within the entire range of the incident angle.

The embodiments herein use a corrector plate or a light field display in an AR/VR display device to compensate for sub-optimal collimation at the edge of the FOV. In one embodiment, the corrector plate is disposed between the collimator and the viewer so that the light at the edge of the FOV can be corrected so that the aberrations mentioned above do not occur. In another embodiment, rather than using a corrector plate, the AR/VR display device can include a light field display that can use color intensity to pre-distort emitted light to compensate for sub-optimal collimation at the edge of the FOV. In this manner, the AR/VR display device can mitigate aberrations or distortions as the user moves her eyes relative to the display device.

A display module includes an image light generation device configured to generate image light, a first diffraction element including a first surface and a second surface and configured to diffract the image light, a first reflection section configured to reflect the image light, and a second diffraction element including a third surface and configured to diffract the image light. The first diffraction element is configured to transmit the image light incident on the first surface and emit the image light toward the first reflection section, the first reflection section is configured to reflect the image light toward the second surface, the first diffraction element is configured to diffract the image light incident on the second surface and emit the image light toward the second diffraction element, and the second diffraction element is configured to diffract the image light, emit the image light, and form an exit pupil.

Systems and methods for projecting each of a chronology of images as a sequence of images using a shifting element as part of a near-eye display system are provided for use in virtual reality, augmented reality, or mixed reality systems. In some example embodiments, a chronology of images is received by a peripheral sequencing system. The system divides each image into image portions and generates sequences of image portions to recreate the images based on arrangement data. The system then causes a high-speed display of each sequence of images such that they appear simultaneous to a viewer. In some embodiments, the projection is transmitted to a shifting optical element such as a rotating micromirror that propagates a display to a user. In some embodiments, the system further detects and corrects for image and environmental distortions.

A wearable display apparatus is described herein. The wearable display apparatus includes a headset, a left-eye optical system, a right-eye optical system, and an inter-pupil distance (IPD) adjustment system coupled to the headset, the left-eye optical system, and the right-eye optical system for adjusting an inter-pupil spacing between the left-eye optical system and the right-eye optical system.

Examples of a light field metrology system for use with a display are disclosed. The light field metrology may capture images of a projected light field, and determine focus depths (or lateral focus positions) for various regions of the light field using the captured images. The determined focus depths (or lateral positions) may then be compared with intended focus depths (or lateral positions), to quantify the imperfections of the display. Based on the measured imperfections, an appropriate error correction may be performed on the light field to correct for the measured imperfections. The display can be an optical display element in a head mounted display, for example, an optical display element capable of generating multiple depth planes or a light field display.

A folded optical arrangement for use in a view-through display to transmit an image from an image source to a user's eye, the arrangement providing a folded optical transmission path and comprising: an optical system having a first optical element comprising a first plurality of optically powered surfaces; and a second optical element comprising at least one optically powered surface, the optical system configured to receive light forming the image from an image source, and to present a virtual image of the image source to the user with an apparent focus between a predetermined distance and optical infinity; wherein the first plurality of optically powered surfaces and the at least one optically powered surface of the second optical element are arranged to define a plurality of interfaces along the folded optical path and wherein a refractive index change at each interface is predetermined to control the direction of light passing through the or each interface; and wherein one surface of the first optical element and one surface of the second optical element are adjacent to one another and the adjacent surfaces are dissimilar and each define an angle with a respective other surface of the relevant optical element at opposing ends of the adjacent surfaces and wherein the opposing angles are not equal; and a compensator element located between the first optical element and an external view to receive the external view for combination with the image output from the optical system