Light weight ophthalmic lenses include a curved back lens attached to a curved front lens assembly having a functional element. An ophthalmic lens includes a curved front lens assembly and a curved back lens. The curved front lens assembly has an essentially constant thickness, forms an external world-side convex surface of the ophthalmic lens, and includes a functional element operable to modify an image of a real world scene viewed via the ophthalmic lens. The curved back lens forms an external user-side surface of the ophthalmic lens, has a world-side convex surface that is shaped complementary to and interfaced with the front lens assembly, and provides a prescribed vision correction.

A see-through type display apparatus includes an image projector configured to output image light, a waveguide configured to receive the image light output from the image projector and transmit the image light to a user's view, and a first lens having a negative refractive power and a second lens having a positive refractive power, which are arranged on both surfaces of the waveguide. Each of the first lens and the second lens includes one or more meta lenses and is configured to operate as a lens with almost no chromatic aberration, thereby implementing a thin optical system having good image quality.

A head-mounted display device includes a front-end assembly, a plurality of support arms, a plurality of counterweight parts and a plurality of brackets. The plurality of support arms are respectively connected to the front-end assembly. The plurality of counterweight parts are respectively slidably arranged to the plurality of support arms and away from the front assembly. The plurality of brackets are respectively connected to the plurality of counterweight parts and used for contacting the head of the user. The brackets are separated from each other. Each of the brackets has an upper part and a lower part. The upper parts of the brackets are adapted to support the upper part of the back of the user's head. The lower parts of the brackets are adapted to support the lower part of the back of the user's head.

A head mounted display for a user that uses a display screen to produce images. The head mounted display includes a frame. The frame has a pair of lenses. The pair of lenses has their optical centers biased away from their physical centers. The head mounted display includes a strap which attaches to the frame and fits about the user's head to hold the frame to the user's head. A method for viewing images by a user.

A waveguide and an augmented reality (AR) device employing the waveguide are disclosed. The waveguide includes a waveguide body, an input-coupling element inputting a light into the waveguide body, a reflective element disposed at one side of the waveguide body and again inputting a light that is not input into the waveguide body or is transmitted through the waveguide body into the waveguide body, and an output-coupling element outputting a light propagating inside the waveguide body to an outside.

An unobtrusive augmented reality (AR) system can be used to assist the wearer in every day interactions by projecting information from the contact lens display onto the retina of the wearer's eye. The unobtrusive augmented reality system includes a necklace and a contact lens display that are unobtrusive to the wearer and the wearer's surrounding environment. The necklace of the unobtrusive augmented reality system generates power and data for the contact lens displays. The necklace and contact lens display include conductive coils inductively coupled by a magnetic field. The inductive coupling allows data and power generated by the necklace to be transferred to the contact lens display. A projector in the contact lens display projects images generated from the data onto the retina of the wearers eye.

A head-mounted display system includes a head-mounted display unit having a display, a battery pack for powering the head-mounted display system, and a positioning and stabilising structure configured to hold the head-mounted display unit anterior to a user's eyes such that the display is viewable by the user in use and configured to hold the battery pack posterior to the user's head in use. In an embodiment, the positioning and stabilizing structure includes a posterior support portion configured to engage a posterior portion of a user's head, the posterior support portion having a parietal strap portion configured to overlie the parietal bones of the user's head in use and an occipital strap portion configured to overlie or lie below an occipital bone of the user's head in use. The positioning and stabilizing structure further includes a pair of lateral strap portions configured to connect between the posterior support portion and the head-mounted display unit, each configured to be located on a respective lateral side of the user's head in use.

A display device includes a two-dimensional array of pixels configured for outputting a respective pattern of light. The display device also includes a lens assembly configured for relaying the respective pattern of light from the two-dimensional array of pixels to a pupil of an eye of a user. The lens assembly includes two or more lenses. The two or more lenses are configured in such a way that a ray of light from a respective pixel of the two-dimensional array of pixels passes through the two or more lenses of the lens assembly.

Some embodiments described herein relate to head-mounted displays having an optical assembly and a support structure. The optical assembly can include the display, lenses, sensors, electronics and similar components. In this way, fragile and/or expensive components can be concentrated in the optical assembly. The support structure can include a faceplate and straps configured to hold the head-mounted display to the user's head. The optical assembly can be removeably coupled to the support structure. Support structures can be interchangeable with optical assemblies such that one support structure can be configured to be removeably coupled to all, most, or several optical assemblies.

Disclosed herein are a slim immersive display device and a slim visualization device. The slim immersive display device includes a slim visualization module for forming an image on a retina of an eyeball of a user based on an externally input image signal, a state information acquisition unit for acquiring a state of an external device as a state image, and a content control unit for analyzing the state image, generating an image corresponding to virtual-reality environment information, and inputting the image to the slim visualization module.