In one aspect, a headset may include a bridge with lenses, an elongated left temple coupled to a left portion of the bridge, and an elongated right temple coupled to a right portion of the bridge. The headset may also include at least one adjustable mechanism that is manipulable to dynamically arrange the structure of the temples toward and away from the bridge, as well as a locking mechanism that selectively locks and unlocks the arrangement of the temples with respect to the bridge. In some examples, the adjustable mechanism may include at least one track for sliding the left and right temples with respect to the bridge to extend and retract distal portions of the temples from the bridge, and at least one element such as a wheel that is controllable to move the temples with respect to the bridge along the at least one track.

An image display system may include an image display device, and first and second attachments. The image display device may include a frame wearable on a user's face, a display unit, display controlling unit causing the display unit to display an image, and a joint portion provided on the frame, capable of having the first attachment mounted thereon, capable of having the second attachment mounted thereon, and capable of selectively having one of the first and second attachments mounted thereon when the image display device is used. The first attachment may include an engaging portion capable of engaging with a use's head and a first attaching portion that attaches the engaging portion to the joint portion. The second attachment may include a fixing portion fixable to headwear covering the user's head and a second attaching portion that attaches the fixing portion to the joint portion.

A display system for a welding helmet that includes a darkening filter layer, a high-dynamic range (HDR) camera system to capture an HDR light field, and an optical image stabilization subsystem. Captured images are displayed on an HDR electronic display within the welding helmet without risk of overexposure of ultraviolet radiation to the operator. In some examples, dual electronic displays are used to display different HDR images to each eye of the operator.

A mixed, virtual and augmented reality headset having a front casing (2) with a housing receiving a smartphone (19) facing the holographic display (5); a curved holographic display (5) in the front portion of the headset reflecting a projected image (11) via the display of a smartphone (19) and simultaneously allowing the user to see through same; a motorised mirror (14) positioned in a withdrawn position or in an extended position in front of the holographic display (5) reflecting the projected image (11) via the smartphone (19); two motorised lenses (15) positioned in a withdrawn position or in an extended position in front of the pupils (13) of the user; a mirror system (16) reflecting a real external image (10) with respect to the headset (1) towards a camera of the smartphone (19); and a control unit (50) controlling the position of the motorised lenses (15) and mirror (14).

A head-mounted computing device having a convertible waveguide optical engine assembly is disclosed. The waveguide in accordance with aspects herein can be utilized in its transparent configuration, or may be provided with means for blocking light from passing through it either by using mechanical means, or by using different types of treatments that can switch the waveguide between opaque an transparent states based on an external stimulus, such as, for example, electricity, temperature, light, and the like. Further, the waveguide optical engine assembly comprises a compact footprint, which is advantageous for head-mounted computing devices. In addition to the compact footprint of the waveguide optical assembly, the configuration of the waveguide optical assembly, as disclosed, allows for maximization of advantages provided by the waveguide as related to eye box and eye relief.

The image display apparatus includes a light attenuation section that reflects a portion of light emitted from a light source and a scanning section that scans the light reflected by the light attenuation section. The light attenuation section transmits a portion of light emitted from the light source. The light attenuation section has reflectance and transmittance and the reflectance is smaller than the transmittance. The image display apparatus further includes a light receiving element on which the light transmitted through the light attenuation section is incident. The image display apparatus also includes a control section that controls activation of the light source in accordance with detection results of the light receiving element.

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 disclosed microfluidic valves may include a valve body having at least one cavity therein, a gate transmission element separating the cavity into an input gate terminal and an output gate terminal, a gate port configured to convey drive fluid into the input gate terminal, and a fluid channel. The gate transmission element may include a flexible membrane and a plunger coupled to the flexible membrane. The gate transmission element may be configured to move within the cavity to inhibit a subject fluid flow from an inlet port to an outlet port of the fluid channel upon pressurization of the input gate terminal, and to allow subject fluid flow from the inlet port to the outlet port upon depressurization of the input gate terminal. Various other related systems and methods are also disclosed.

An adjustable head-mounted display comprises a head-mounted portion (1), a display portion (2) and a sound outputting portion (3). The display portion (2) comprises two legs (21) and a display (22), one end of each leg (21) is connected to corresponding end of the display (22), and the other end of each leg (21) is rotatably connected to an end of the head-mounted portion (1) on corresponding side. The sound outputting portion (3) comprises a left headphone and a right headphone, wherein the left headphone and the right headphone each comprises an ear cup (32), an ear cup bracket and a sound generator in the ear cup. The ear cup bracket is connected to an end of the head-mounted portion (1) on corresponding side, and the ear cup is connected to the ear cup bracket; and the head-mounted portion (1) is provided with a head-mounted portion length adjustment mechanism. By the present disclosure, the user can adjust the length upon his demand, and the universality will be improved.

Aspects of the present disclosure relate to haptic feedback systems and methods for use in head-worn computing systems. A head worn computer includes a frame adapted to hold a computer display in front of a user's eye, a processor adapted to present digital content in the computer display and to produce a haptic signal in coordination with the digital content display, and a haptic system including a plurality of haptic segments, wherein each of the haptic segments is individually controlled in coordination with the haptic signal.