A pair of stereoscopic viewing glasses is provided, including: lenses (1), a support (2), and a baffle plate (3). The support (2) includes a top surface (201) and side surfaces (202, 203). The top surface (201) and the side surfaces (202, 203) of the support (2) form a cavity. The baffle plate (3) is fixed inside the cavity, and divides the cavity into two independent cavities (4). An accommodation space (5) for a terminal is equipped between a bottom edge of the baffle plate (3) and a bottom of the cavity. The cavity is equipped with an operating opening (6) by which an operation is conducted on the terminal. The top surface (201) is equipped with two mounting holes (7) which are positioned on two sides of the baffle plate (3) respectively, and are connected to the two independent cavities (4) and have the lenses (1) mounted therein.

A light control film includes a plurality of spaced apart substantially parallel first light absorbing regions arranged along a first direction, each first light absorbing region having a width and a height, the plurality of first light absorbing regions including nonoverlapping first and second sub-pluralities of the plurality of first light absorbing regions, the first sub-plurality of the plurality of first light absorbing regions having a first viewing angle, the second sub-plurality of the plurality of first light absorbing regions having a different second viewing angle.

An apparatus and method wherein the apparatus includes an image source; an exit pupil configured to be positioned proximate to an eye of a user to enable a user to view an image from the image source; and a plurality of grating areas between the image source and the exit pupil wherein the plurality of grating areas are configured to direct beams of light from the image source to the exit pupil; wherein the image source is configured to be moved relative to the plurality of grating areas to control the position of the exit pupil relative to the eye of the user.

According to an implementation of the present specification there is provided an apparatus for creating a hybrid image. The apparatus comprises: a first light source configured to emit a first light in a first direction; a reflector disposed to intercept the first light and configured to at least partially reflect the first light in an output direction to produce a reflected first light. The apparatus also comprises a second light source configured to emit a second light, the reflector configured to at least partially transmit the second light in the output direction to produce a transmitted second light. The apparatus also comprises an input terminal configured to receive an input used to control one or more of the first light source and the second light source. The hybrid image comprises a combination of the reflected first light and the transmitted second light.

A hand-held emergency vision apparatus comprises an enclosed tubular structure having opposite first and second ends; first and second clear members disposed at respective the first and second ends; the structure including a plurality of tubular members retractable to a shorter length and extendable to one of several lengths, the tubular members are rigid and sealed from the outside air; and a filter operably associated with the tubular structure to filter the outside air such that when the tubular structure is extended from the compact form air the outside air is forced through the filter and clean air enters the tubular structure.

A sign and display system including a faceplate, lens, backing plate, and at least one magnet is described. The faceplate includes a viewing aperture and the back of the faceplate includes a recess in which the at least one magnet is mounted. The recess in the faceplate is configured to receive the lens and backing plate. The lens may include one or more edge protrusions configured to enter one or more small recesses in the side of the faceplate recess to secure the lens to the faceplate. When the lens and backing plate are positioned in the recess of the faceplate, the one or more magnets exert a force on the backing plate to secure the faceplate and lens to the backing plate. An insert capable of displaying text and/or graphics can also be positioned between the lens and backing plate in the recess of the faceplate.

An apparatus and method for real-time audio processing employs a gaze detection sensor to detect a direction of a user's gaze and output a gaze signal corresponding to the detected direction of the user's gaze. A digital signal processing unit responds to a plurality of signals corresponding to a plurality of sounds received at the apparatus, and the determined direction of gaze to identify a signal of interest from the plurality of signals using the gaze signal. The signal of interest is processed for output to the user. In embodiments, a microphone array provides the plurality of signals. An imaging sensor may work with either the microphone array or the gaze detection sensor to identify the signal of interest.

There is provided system including a user device and a viewing device configured to receive the user device, the viewing device including a control element and a viewing portal, the user device including a display, a non-transitory memory storing an executable code, a hardware processor executing the executable code to display, on the display, a computer-mediated reality content visible by a user through the viewing portal of the viewing device, receive a first input from the viewing device, in response to a second input provided by the user using the control element of the viewing device, modify an operational element of the user device, in response to the first input.

A lens unit includes a first lens disposed on an object side in an optical axis direction, a plurality of image-side lenses (second lens through seventh lens) comprising a second lens facing the first lens on an image side in the optical axis direction and disposed on the image side with respect to the first lens, a lens barrel coaxial with the optical axis to hold the first lens and the plurality of image-side lenses radially inside, a first sealing member to seal a gap between the first lens and the lens barrel, and a second sealing member to seal a gap between an image side surface (flange surface) of the first lens and the lens barrel radially inside the first sealing member.

A method of providing an augmented view of a real world scenery and of an occluded subsurface infrastructure. An image is taken by a camera with an image sensor and image reference information comprising a camera position and a camera orientation. From three dimensional information of a subsurface infrastructure, a two dimensional projection on the image sensor is made by using the reference information. A projection position of an anchor element of the subsurface infrastructure being visible on the at least one image is compared with an image position of the anchor element. A difference between the image position and the projection position is compensated for matching and overlaying the two dimensional projection derived from the three dimensional information of the subsurface infrastructure with the at least one image and thereby providing an improved augmented view.