1974 results about "Head worn display" patented technology

Systems and methods for dynamically controlling vergence and focus for a see-through head-mounted display (ST-HMD) used as part of an augmented reality (AR) system are disclosed. The ST-HMD (40) allows a user (30) to view left and right images (150L, 150R) through corresponding left and right eyepieces (104L, 104R) so that a single virtual object (150V) based on the right and left images as seen at a real object such as a screen (20). When the user moves relative to the real object, however, the vergence changes and the virtual object does not appear in focus at the real object. Changes in the vergence are compensated by tracking the user's head position with a tracking unit (350) and providing the tracking data to a controller (180). Based on the tracking data and the interpupilary distance (IPD) of the user, the controller calculates the offset (H) needed to be imparted to the images formed in the eyepieces to maintain the vergence of the virtual object at the real object even when the user's position changes relative to the real object.

Methods, systems, apparatus and devices for the lens design of an HMPD with eye-tracking capabilities. The integration uses a low-level optical configuration in order to achieve a compact, comfortable, easy-to-use system. The optical system is further designed and optimized for sharing of the optical path between the HMD and the Eye-Tracker with minimal performance loss for both tasks.

A first HOE and a second HOE are respectively arranged on two opposite faces of an optical waveguide member. The first HOE diffracts light incident from the outside on the optical waveguide member such that the light is then totally reflected inside the optical waveguide member and is thereby directed to the second HOE. The second HOE diffracts, according to the diffraction efficiency thereof, part of the light incident thereon after being guided inside the optical waveguide member such that this part of the light is then emitted to the outside substantially parallel to the light incident on the optical waveguide member, and the second HOE simultaneously totally reflects the rest of the light incident thereon. The second HOE repeats such emission and total reflection. The first and second HOEs each have interference fringes with n different pitches (where n is a natural number equal to or greater than two) to diffract light of n different wavelengths at substantially equal angles. Thus, even when light of n different wavelengths is incident on the optical waveguide member, the second holographic diffractive optical element emits it to the outside with substantially equal pitches for the light of the n different wavelengths.

An audio and / or visual experience of a see-through head-mounted display (HMD) device, e.g., in the form of glasses, can be moved to target computing device such as a television, cell phone, or computer monitor to allow the user to seamlessly transition the content to the target computing device. For example, when the user enters a room in the home with a television, a movie which is playing on the HMD device can be transferred to the television and begin playing there without substantially interrupting the flow of the movie. The HMD device can inform the television of a network address for accessing the movie, for instance, and provide a current status in the form of a time stamp or packet identifier. Content can also be transferred in the reverse direction, to the HMD device. A transfer can occur based on location, preconfigured settings and user commands.

Control of a head-mounted display includes providing a head-mounted display, the head-mounted display includes a switchable viewing area that is switched between a transparent viewing state and an information viewing state. The transparent viewing state is transparent with respect to the viewing area and enables a user of the head-mounted display to view the scene outside the head-mounted display in the user's line of sight. The information viewing state is opaque with respect to the viewing area and displays information in the switchable viewing area visible to a user of the head-mounted display. The viewing state automatically switches in response to an external stimulus notification.

Disclosed herein is a head mounted display including: an eyeglasses frame-like frame to be mounted onto an observer's head; and two image display devices, each of the image display devices including an image generating device, and light guide means which is mounted to the image generating device, which as a whole is located on the side of the center of an observer's face relative to the image generating device, on which beams emitted from the image generating device are incident, through which the beams are guided, and from which the beams are emitted toward an observer's pupil.