The present disclosure relates to a prism device, comprising a prism assembly, and a holder connected to the prism assembly. The holder comprises a first end and a second end oppositely arranged, and the second end is connected to the prism assembly, the first end is used to provide a support point for the holder, and the second end is movable relative to the first end to adjust a spatial position of the prism assembly relative to the support point. It is not required to wear the prism assembly on the nose bridge by mean of using a holder to support the prism device, which reduces the weight on the wearer's nose bridge and relieve the discomfort caused by wearing objects. In addition, when the visual field changes with the movement of the head, it will not cause dizziness to the user.

Head-mounted display systems and methods of operation that allow users to couple and decouple a portable electronic device such as a handheld portable electronic device with a separate head-mounted device (e.g., temporarily integrates the separate devices into a single unit) are disclosed. The portable electronic may be physically coupled to the head-mounted device such that the portable electronic device can be worn on the user's head. The portable electronic device may be operatively coupled to the head-mounted device such that the portable electronic device and head mounted device can communicate and operate with one another. Each device may be allowed to extend its features and/or services to the other device for the purpose of enhancing, increasing and/or eliminating redundant functions between the head-mounted device and the portable electronic device.

Head-mounted display systems and methods of operation that allow users to couple and decouple a portable electronic device such as a handheld portable electronic device with a separate head-mounted device (e.g., temporarily integrates the separate devices into a single unit) are disclosed. The portable electronic may be physically coupled to the head-mounted device such that the portable electronic device can be worn on the user's head. The portable electronic device may be operatively coupled to the head-mounted device such that the portable electronic device and head mounted device can communicate and operate with one another. Each device may be allowed to extend its features and/or services to the other device for the purpose of enhancing, increasing and/or eliminating redundant functions between the head-mounted device and the portable electronic device.

The invention relates to an image generating device (20) comprising:—at least one light source (23),—a screen (21) designed to be backlit by said light source, and—a reflector (25) arranged between said light source and screen and designed to reflect at least some of the light emitted by the light source. According to the invention, the reflector defines a housing (280) designed to receive the screen such that the reflector has a zone (290) of thermal contact with the screen. The invention also relates to a head-up display comprising an image generating device of this type.

Certain example embodiments relate to a box or other viewer that accommodates one or more glass-inclusive samples and that is usable in a plurality of different configurations to facilitate evaluation of the sample(s) from indoor and outdoor viewing perspectives. The sample viewer is “convertible” between a transportation configuration and the indoor and outdoor viewing perspective configurations. For example, certain example embodiments may be used as glass-inclusive sample shipping and storage containers that transform into miniature mockup walls with little manual effort and with little risk of human viewers looking at glass the wrong way (e.g., a manner that would lead to a false impression of the visual aesthetic of the sample(s) therein). The glass-inclusive sample(s) may include one or more uncoated or coated glass sheets, insulated glass (IG) units, vacuum insulated glass (VIG) units, laminated products, and/or the like.

Head-mounted display systems and methods of operation that allow users to couple and decouple a portable electronic device such as a handheld portable electronic device with a separate head-mounted device (e.g., temporarily integrates the separate devices into a single unit) are disclosed. The portable electronic may be physically coupled to the head-mounted device such that the portable electronic device can be worn on the user's head. The portable electronic device may be operatively coupled to the head-mounted device such that the portable electronic device and head mounted device can communicate and operate with one another. Each device may be allowed to extend its features and/or services to the other device for the purpose of enhancing, increasing and/or eliminating redundant functions between the head-mounted de ice and the portable electronic device.

A head-mounted display system includes a head-mounted display unit and a positioning and stabilising structure structured and arranged to hold the head-mounted display unit in an operational position over a user's face in use. The positioning and stabilising structure includes a rear support structure adapted to contact posterior regions of a user's head and a forehead support connector, which includes a forehead support strap, which extends generally along and in the direction of the sagittal plane and connects the rear support structure to a superior edge region of the head-mounted display unit. The forehead support connector further includes a forehead support rigidiser that provides rigidification to a portion of the forehead support connector.

A head-mounted display system includes a head-mounted display unit and a positioning and stabilising structure structured and arranged to hold the head-mounted display unit in an operational position over a user's face in use. The positioning and stabilising structure includes a rear support structure adapted to contact posterior regions of a user's head and opposing temporal connectors structured and arranged to interconnect the rear support structure to the head-mounted display unit, the opposing temporal connectors adapted to be disposed on opposing sides of the user's head and extend along the temporal regions of the user's head. At least the rear support structure comprises a textile material configured to conform to the posterior regions of the user's head.

Provided is a mobile phone packaging box, comprising: a first packaging box cover (1), a second packaging box cover (2), a mobile phone tray (3) for clamping and fixing a mobile phone and an organic lens (4), wherein a first hole for eye observation and a second hole for avoiding the nose are provided in the first packaging box cover (1) or the second packaging box cover (2). The organic lens (4) are fixed in a position corresponding to the first hole at the first packaging box cover (1) or the second packaging box cover (2) with the first hole. The mobile phone packaging box is not only of low cost, but also has high experience, and can be used repeatedly.

Provided is an electronic device. The electronic device according to the present disclosure can adjust the length of a band surrounding a user's head, by sensing pressure of a part of the electronic device coming into contact with the user. Furthermore, the electronic device according to the invention can identify a direction in which the user's eyeball looks, and deduce the user's facial expression, by sensing the movement of muscle around the user's eyeball. The electronic device of the invention can be associated with artificial intelligence modules, robots, augmented reality (AR) devices, virtual reality (VR) devices, devices related to 5G service, etc.