A device including a frame and an eyepiece is provided. The eyepiece includes a front glass, a rear glass, and an active element sandwiched between the front glass and the rear glass. The active layer is electrically activated, via an interconnect, by a flex circuit enclosed between a top portion of the frame and a cap, the flex circuit including a memory and a processor. A method for assembling the above device is also provided.

The invention relates to a head-up display (1) with a side image generator (2), particularly for motor vehicle. Said head-up display comprises:—an image generator (2) configured to display an image along a display axis (7);—a semi-reflective optical element (3) arranged space apart from the image generator (2) and configured o display a virtual image along a projection axis (9); and—at least one mirror (4) arranged on the display axis (7) so as to reflect the image from the image generator (2) towards the optical element (3) along a reflection axis (8). The display axis (7) of the image generator (2) is perpendicular to the projection axis (9) of the optical element.

Disclosed are a head mounted display (HMD), and a method for controlling the same. The HMD includes: a body having a display unit; a lens driving unit provided at the body, and configured to move a lens unit spaced apart from the display unit, wherein the lens driving unit includes: a lens frame having a first tube portion protruded in a first direction, and coupled to the body; a lens housing having a second tube portion protruded in the first direction and having the lens unit, the second tube portion relatively moved on the first tube portion; a link unit coupled to the lens frame and the lens housing, and configured to move the lens housing; and a driving unit provided at one side of the first tube portion, and configured to operate the link unit.

An optical scanning device includes a light source, a scanning member, and an incident optical system. The scanning member two-dimensionally scans a scanning area with the deflected light beam in a first direction and a second direction perpendicular to the first direction. The incident optical system guides the emitted light beam to the scanning member, the incident optical system including the light source. The scanning area includes a first area and a second area surrounding the first area. When the scanning area is viewed from a side of the scanning member, at least a part of the incident optical system is disposed in an area of the second area that overlaps one of two divided areas of the scanning area. The two divided areas are divided by a line segment parallel to the first direction,

A head-mounted display (HMD) includes various features that allow for customizing the HMD to different users. The HMD may include an interpupillary distance (IPD) adjustment mechanism that includes a double biasing assembly for smooth, controlled adjustment of the spacing between lens tubes. The HMD may include a field of view (FOV) adjustment mechanism that includes first and second gear assemblies connected via a connecting rod to allow uniform adjustment of the spacing between the lenses and the user's face. The HMD may further include a swappable face gasket, a swappable visor, a removable head strap, and a modular accessory compartment for further customizations to the HMD. The HMD may further include inconspicuous spectrum-transmissive windows that are made with a spectrum-transmissive base material for the HMD housing that is coated with a spectrum-opaque material, and the spectrum-opaque material is selectively removed to create the spectrum-transmissive windows.

According to an aspect, a head-up display device, includes: a display panel configured to display a third image that is a composite of first and second images; a parallax generator configured to generate parallax of the first image and parallax of the second image; and a projection destination part onto which projection light emitted from a display surface side of the display panel and modulated by the parallax generator is projected.

The present disclosure relates to modular waveguide displays including: a modular frame; a waveguide lens attached to the modular frame, where the waveguide lens in configured to be attached to the modular frame to locate one or more waveguides within the waveguide lens in front of the modular frame; and an optical engine which is configured to be attached to the modular frame, wherein, when the optical engine is attached to the modular frame, the optical engine is configured to provide image containing information to a front side of the one or more waveguides. Advantageously, a modular waveguide display allows for customization by a user. The modular waveguide display is designed to operate without such components as the optical engine when such functionality is undesired to save weight and power. Also, modular waveguide displays allow for parallel development of components such as the waveguide lens and the optical engine.

Disclosed are various embodiments regarding a head-mounted device. According to an embodiment, a mount device comprises: a housing comprising a front surface, a rear surface that can be mounted on a head, and a side surface surrounding the front surface and the rear surface; a coupling portion can be disposed in housing, and can be configured to be coupled so as to slope an external electronic device at a designated angle with regard to the side surface; a prism comprising a first surface capable of facing, at the designated angle, at least a part of a display included in the external electronic device that can be coupled to the coupling portion, a second surface capable of changing (through total reflection) the direction of light that is incident from the display through the first surface, and a third surface capable of emitting the light, the direction of which has changed; a mirror arranged between at least a part of the side surface and the third surface; and a splitter arranged between the mirror and the third surface to be capable of transmitting at least a part of light emitted through the third surface and changing the direction of the light, which is transmitted and then reflected by the mirror, to a direction corresponding to the rear surface. Various other embodiments are possible.

A head-mounted display includes a display device, a connecting structure and a head abutting portion. The connecting structure is in a shape of strip. The connecting structure has two opposite ends. The ends are respectively connected with the display device. The connecting structure and the display device define an accommodation space. The accommodation space is configured to accommodate a head of a user. The head abutting portion is pivotally connected with the connecting structure. The head abutting portion is at least partially located between the connecting structure and the display device. The head abutting portion is configured to abut against the head of the user.

According to at least one aspect, the present disclosure provides a head-up display device comprising: a housing having a receiving space therein; a display unit disposed over the housing; a light source unit disposed so that a main optical axis is not directed at the display unit; a first reflector reflecting at least some of light emitted from the light source unit towards the display unit; and a diffuser disposed on an optical path of the light source unit reflected from the first reflector to uniformly make light.