Abstract: The present invention discloses a display device, comprising: a camera, a display panel and a backplane. The display panel, located on the light incident side of the camera, includes a first display area and a second display area; wherein the second display area is arranged corresponding to the camera. The backplane, located between the camera and the display panel, includes a first backplane and a second backplane; wherein a vertical projection of the second backplane on the display panel covers at least the second display area, and the light reflectivity of the second backplane is less than the light reflectivity of the first backplane.

Abstract: A display apparatus (500) for displaying a virtual image (VIMG1) includes an expander device (EPE1) to form light beams (B3P1,R, B3P2,R) of output light (OUT1) by expanding light beams (B0P1,R, B0P2,R) of input light (IN1), the expander device (EPE1) including a waveguide plate (SUB1), an in-coupling element (DOE1) to form guided light (B1) by coupling input light (IN1) into the waveguide plate (SUB1), and an out-coupling element (DOE3) to form output light (OUT1) by coupling the guided light (B1) out of the waveguide plate (SUB1), wherein the display apparatus (500) includes a base (BASE1) and an actuating mechanism (MOTOR1) to cause rotary and/or oscillatory motion of the waveguide plate (SUB1) with respect to the base (BASE1).

Abstract: An optical engine of a display system includes first and second sets of laser light sources, which may be independently controllable, with laser light from each set of laser light sources being respectively combined to form first and second elliptical laser light beams. The first and second elliptical laser light beams may propagate along parallel or angularly separated optical paths prior to incidence at a scan mirror of an optical scanner of the system. In some embodiments, the first and second elliptical laser light beams are incident on separate regions of the reflective surface of the scan mirror. In some embodiments, the first and second elliptical laser light beams are incident on partially overlapping regions of the reflective surface of the scan mirror.

Abstract: An adjustment device for adjusting an orientation of a reflection device of a head-up display, to an adjustment unit, to a head-up display and to a vehicle is disclosed. The adjustment device includes a support structure and a clamping device, wherein the clamping device is configured to be displaced along a first axis and comprises a first clamping element and a second clamping element arranged opposite to the first clamping element and forming a clamping gap together with the first clamping element, wherein the clamping device is configured to receive and clamp an adjustment lever of the reflection device between the first clamping element and the second clamping element, wherein the first clamping element and the second clamping element are made of separate parts, and wherein the first clamping element and the second clamping element are rotatably coupled to each other about a second axis.

Abstract: Provided is an image display apparatus that has a small overall apparatus volume and can be miniaturized. The image display apparatus includes an image display element; a light guide plate on which light emitted by the image display element is incident and which internally and totally reflects the light satisfying a total reflection condition to guide the light; and a retroreflective element that is provided on a surface of the light guide plate and retroreflects the light guided in the light guide plate.

Abstract: Disclosed is a wearable electronic device including a frame, a pair of window members supported by the frame, a pair of leg members rotatably connected to the frame, at least one display module disposed between the pair of window members, and at least one mirror member configured to reflect light emitted from the at least one display module and cause the emitted light to reach at least one of the pair of window members.

Abstract: A projection screen, with a design in which the apexes of multiple triangular pyramidal units of the projection screen in an array arrangement change gradually according to a predetermined relation, an image light shone from a projector is reflected by a microstructure layer having the triangular pyramidal units and then converged in a range centered around the human eyes, so as to reduce the degree of difference in brightness at different viewing positions, thus ensuring that the projection screen is provided with excellent uniformity and high gain.

Abstract: A projector includes a lamp unit, a color separation system that separates first light outputted from the lamp unit into a plurality of color beams, a plurality of liquid crystal panels that modulate the plurality of separated color beams from the color separation system, reduction optical systems that reduce at least one of pencils of light formed of the plurality of color beams modulated by the plurality of liquid crystal panels, a light combining prism that combines the plurality of reduced color beams with one another, and a projection lens that projects second light that is the combined light from the light combining prism. The reduction optical systems are disposed between the liquid crystal panels and the light combining prism, and the area of an effective display region of each of the liquid crystal panels is greater than an effective area of each light incident surface of the light combining prism.

Abstract: A head mounted display is provided. The head mounted display includes a first display module, a second display module, an adjustment mechanism, a first frame temple and a second frame temple. The adjustment mechanism is connected to the first display module and the second display module, wherein the adjustment mechanism is adapted to move the first display module and the second display module. The first frame temple is connected to the adjustment mechanism, wherein the first frame temple is adapted to move the adjustment mechanism. The second frame temple is connected to the adjustment mechanism, wherein the second frame temple is adapted to move the adjustment mechanism, the first frame temple and the second frame temple are adapted to rotate between a first posture and a second posture.

Abstract: An optical display system, a control method, and a display device, relates to the field of display technology. The optical display system comprises a display screen a first light splitting unit disposed at a display side of the display screen; a first imaging unit comprising a light splitting film disposed at a light-incident surface of the first imaging unit; a second light splitting unit disposed at a light emission side of the first imaging unit; a phase modulation unit disposed at least in a light path from the first imaging unit to the second light splitting unit; wherein, the first-type polarized light transmitted from the first light splitting unit is transmitted from a light emission side of the second light splitting unit, after being turned back multiple times between the first imaging unit and the second light splitting unit.

Abstract: An optical lens assembly includes, from an object side to an image side, at least four optical lens elements. At least one of the at least four optical lens elements includes an anti-reflective coating. The at least one optical lens element including the anti-reflective coating is made of a plastic material. The anti-reflective coating is arranged on an object-side surface or an image-side surface of the at least one optical lens element including the anti-reflective coating. The anti-reflective coating includes at least one coating layer. One of the at least one coating layer at the outer of the anti-reflective coating is made of ceramics. The anti-reflective coating includes a plurality of holes, and sizes of the plurality of holes adjacent to the outer of the anti-reflective coating are larger than sizes of the plurality of holes adjacent to the inner of the anti-reflective coating.

Abstract: An optical lens assembly includes, from an object side to an image side, at least four optical lens elements. At least one of the at least four optical lens elements includes an anti-reflective coating. The at least one optical lens element including the anti-reflective coating is made of a plastic material. The anti-reflective coating is arranged on an object-side surface or an image-side surface of the at least one optical lens element including the anti-reflective coating. The anti-reflective coating includes at least one coating layer. One of the at least one coating layer at the outer of the anti-reflective coating is made of ceramics. The anti-reflective coating includes a plurality of holes, and sizes of the plurality of holes adjacent to the outer of the anti-reflective coating are larger than sizes of the plurality of holes adjacent to the inner of the anti-reflective coating.

Abstract: An optical device includes a first optical system having an optical element, a second optical system having a lens and disposed at a reduction side of the first optical system, a first holding member holding the optical element, and a first movement mechanism configured to move the first holding member in optical axis directions along an optical axis of the optical element. The optical element has a reflection surface. The first movement mechanism has a fixing member supporting the first holding member rotatably around a rotation axis and a transport portion configured to move the first holding member along the optical axis directions according to rotation of the first holding member. The reflection surface has a shape rotationally symmetrical with respect to the rotation axis. The rotation axis and the optical axis are the same axis.

Abstract: An electronic apparatus includes a projector, an input/output interface, a memory, and a processor that controls the electronic apparatus by executing at least one instruction stored in the memory. The processor obtains screen information of a screen device connected to the electronic apparatus, controls the input/output interface to transmit first operation information corresponding to an unrolling of the screen device in response to receiving a user command to project an image, and controls the projector to project a first image to at least a partial region of a region in which a screen of the screen device is exposed based on the screen information while the screen of the screen device is being unrolled, based on the first operation information.

Abstract: A folded optical arrangement to transmit an image from an image plane to a user's eye through a folded optical transmission path including a collimating element having a first optical element with optically powered surfaces and a second optical element with at least one optically powered surface to receive light from an image source and to collimate and output the light. The first optically powered surfaces and the second optically powered surface to define multiple interfaces along the folded optical path. A refractive index change at each interface controls a direction of light passing through each interface. One surface of the first optical element and the second optical element are adjacent to one another. The adjacent surfaces have dissimilar shapes and each defines an angle with a respective other surface of the relevant optical element at opposing ends of the adjacent surfaces. The opposing angles are not equal.

Abstract: A laser system includes a laser source generating a laser beam having ultra-short pulses; a laser delivery assembly optically receiving the laser beam and comprising: a beam splitter configured to split the laser beam between a first beam delivery path and a second beam delivery path; and at least one focusing lens optically coupled to the beam splitter and configured to focus the laser beam from each of the first beam delivery path and the second beam delivery path to a focal point on a predefined plane; wherein the first beam delivery path intersects the predefined plane at a first angle, the second beam delivery path intersects the predefined plane at a second angle, and a first pulse from the first beam delivery path and a second pulse from the second beam delivery path are coincident at the focal point.

Abstract: A display switching device according to one or more embodiments may display images by switching light illumination from multiple light source positions. The device may include a lens array including multiple lenses that allow passage of light from the light source positions, a display layer including pixel regions that allow passage of light collected on the lenses included in the lens array, and a diffusion layer located opposite to the light source positions with the lens array in between to diffuse passing light. The diffusion layer optically adheres to a layer adjacent to a surface of the diffusion layer nearer the light source positions, or the diffusion layer and the layer adjacent the surface of the diffusion layer nearer the light source positions include the same material.

Abstract: Methods and apparatuses for providing a portable and convenient way of projecting and displaying content originating from a mobile device, tablet device, display device, or screen. A method may include connecting a first side panel to a first side edge of a front panel. A second side panel may be connected to a second side edge of the front panel. A rear panel may be connected to a first side edge of the first side panel, a first side edge of the second side panel, and a top edge of the front panel. The rear panel may be disposed at an angle of less than 90 degrees with respective to a horizontal plane of the rear panel. The front panel, the first side panel, and the second side panel may include a translucent, transparent, or semi-transparent material configured to diffuse light.

Abstract: In a vehicle display device, a locking mechanism has a first support part that supports a first end of a display panel and a second support part located at a position relatively different from the first support part. The second support part has a pair of urging portions that urge the display panel in a support state, and a first receiving portion that receives a lower surface of a second end of the display panel. Each of the urging portions is formed curving in an S shape when viewed from the optical axis direction, and a distal end portion formed at an end opposite to the fixed end portion has a second receiving portion that protrudes from an abutting surface toward the display panel and interposes the second end of the display panel between the second receiving portion and the first receiving portion, in the support state.

Abstract: A projector includes a projection lens and a projector body. In the projection lens, a U-shaped optical path is formed by optical axis to optical axis. A lens barrel is a U-shaped barrel. A housing of the projector body includes a storage section. The projection lens is supported rotatably about the optical axis with respect to the housing, in an up-down direction and a right-left direction of the housing perpendicular to the optical axis, between a first position where the projection lens is stored inside a storage section provided in the housing and a second position where the projection lens is protruding from the housing.