In some examples, a system includes an article of personal protective equipment (PPE) having at least one sensor configured to generate a stream of usage data; and an analytical stream processing component comprising: a communication component that receives the stream of usage data; a memory configured to store at least a portion of the stream of usage data and at least one model for detecting a safety event signature, wherein the at least one model is trained based as least in part on a set of usage data generated by one or more other articles of PPE of a same type as the article of PPE; and one or more computer processors configured to: detect the safety event signature in the stream of usage data based on processing the stream of usage data with the model, and generate an output in response to detecting the safety event signature.

Eyewear is provided including a frame, and a camera connected with the frame, in which the camera is configured to be controlled by a remote controller. The camera may be configured to capture video and/or a photo. The eyewear may include data storage, and the camera may be connected to the data storage. A wrist watch may be configured to act both as a time piece and a controller of the camera. The eyewear may also include a heads up display and/or a video file player. The eyewear may also include an electro-active lens.

Systems and methods to aid a welder or welding student. A system may provide a real-world arc welding system or a virtual reality arc welding system along with a computerized eyewear device having a head-up display (HUD). The computerized eyewear device may be worn by a user under a conventional welding helmet as eye glasses are worn and may wirelessly communicate with a welding power source of a real-world arc welding system or a programmable processor-based subsystem of a virtual reality arc welding system.

Systems and methods to aid a welder or welding student. A system may provide a real-world arc welding system or a virtual reality arc welding system along with a computerized eyewear device having a head-up display (HUD). The computerized eyewear device may be worn by a user under a conventional welding helmet as eye glasses are worn and may wirelessly communicate with a welding power source of a real-world arc welding system or a programmable processor-based subsystem of a virtual reality arc welding system.

The present application provides a headband arrangement for a welding helmet, comprising: a fixed attachment structure; and a helmet mounting structure cooperating with the attachment structure, wherein at least two stopping positions are defined longitudinally between the attachment structure and the helmet mounting structure, the helmet mounting structure is selectively switchable between an unlocking state and a locking state, wherein in the unlocking state, the helmet mounting structure is slidable between the stopping positions relative to the attachment structure, and wherein in the locking state, the helmet mounting structure can be locked to one of the stopping positions relative to the attachment structure and can be kept there by a magnetic force generated between a pair of magnetic parts.

The present application provides a headband arrangement for a welding helmet, comprising: a fixed attachment structure; and a helmet mounting structure cooperating with the attachment structure, wherein at least two stopping positions are defined longitudinally between the attachment structure and the helmet mounting structure, the helmet mounting structure is selectively switchable between an unlocking state and a locking state, wherein in the unlocking state, the helmet mounting structure is slidable between the stopping positions relative to the attachment structure, and wherein in the locking state, the helmet mounting structure can be locked to one of the stopping positions relative to the attachment structure and can be kept there by a magnetic force generated between a pair of magnetic parts.

Embodiments provide a retention apparatus for a head-mounted device and a head-mounted apparatus including the retention apparatus and the head-mounted device. The retention apparatus includes left and right band portions arranged on respective sides of a user's head, which connect to the head-mounted device at one end, and include opposing free ends that are arrangeable toward a back side of the wearer's head. The retention apparatus includes left and right elastic straps and an adjustment mechanism. The adjustment mechanism is arrangeable at the back of the user's head and includes arms the telescope into and out of the adjustment mechanism. The elastic straps are attached to the left and right band portions at first ends and to respective arms of the adjustment mechanism at second ends. Adjustably moving the arms of the adjustment mechanism stretches or relaxes the elastic straps, adjusting tension of the retention apparatus.

Embodiments provide a retention apparatus for a head-mounted device and a head-mounted apparatus including the retention apparatus and the head-mounted device. The retention apparatus includes left and right band portions arranged on respective sides of a user's head, which connect to the head-mounted device at one end, and include opposing free ends that are arrangeable toward a back side of the wearer's head. The retention apparatus includes left and right elastic straps and an adjustment mechanism. The adjustment mechanism is arrangeable at the back of the user's head and includes arms the telescope into and out of the adjustment mechanism. The elastic straps are attached to the left and right band portions at first ends and to respective arms of the adjustment mechanism at second ends. Adjustably moving the arms of the adjustment mechanism stretches or relaxes the elastic straps, adjusting tension of the retention apparatus.

A helmet comprises a shell with an integrated panel tab that is formed by cutting a pattern into the shell. The helmet further comprises an enclosure located interior to the shell and at a position that corresponds to the integrated panel tab. Within the enclosure are an electronic membrane, which is operatively coupled to the integrated panel tab, and a membrane force tab, which is operatively coupled to the electronic membrane. When pressure is applied to the integrated panel tab from the exterior of the shell (by, for example, a finger of a user), the integrated panel tab functions as a flexible actuator that presses the electronic membrane, thereby permitting control of helmet functions without any externally-protruding controls that can be inadvertently broken.

Eyewear is provided including a frame, and a camera connected with the frame, in which the camera is configured to be controlled by a remote controller. The camera may be configured to capture video and/or a photo. The eyewear may include data storage, and the camera may be connected to the data storage. A wrist watch may be configured to act both as a time piece and a controller of the camera. The eyewear may also include a heads up display and/or a video file player. The eyewear may also include an electro-active lens.