An optical glare protection filter for a glare protection device includes at least one liquid-crystal cell with at least one liquid-crystal layer and at least one first electrode layer for orienting crystal molecules of the at least one liquid-crystal layer, and with at least one first contact element for electrically contacting the at least one first electrode layer. The optical glare protection filter may also include at least one second contact element for electrically contacting the at least one first electrode layer, which is substantially spaced apart from the first contact element.

An example head-worn device includes a camera, a display device, weld detection circuitry, and pixel data processing circuitry. The camera generates first pixel data from a field of view of the head-worn device. The display device displays second pixel data to a wearer of the head-worn device based on the first pixel data captured by the camera. The weld detection circuitry determines whether a welding arc is present and generates a control signal indicating a result of the determination. The pixel data processing circuitry processes the first pixel data captured by the camera to generate the second pixel data for display on the display device, where a mode of operation of said pixel data processing circuitry is selected from a plurality of modes based on said control signal.

An example head-worn device includes a camera, a display device, weld detection circuitry, and pixel data processing circuitry. The camera generates first pixel data from a field of view of the head-worn device. The display device displays second pixel data to a wearer of the head-worn device based on the first pixel data captured by the camera. The weld detection circuitry determines whether a welding arc is present and generates a control signal indicating a result of the determination. The pixel data processing circuitry processes the first pixel data captured by the camera to generate the second pixel data for display on the display device, where a mode of operation of said pixel data processing circuitry is selected from a plurality of modes based on said control signal.

A welding-type helmet includes a cover with a channel recessed from an external surface of the cover, the channel being configured to house a removable light source within the channel.

A welding-type helmet includes a cover with a channel recessed from an external surface of the cover, the channel being configured to house a removable light source within the channel.

A system for aiding a user in at least one of welding, cutting, joining, and cladding operations is provided. The system includes a welding tool and a welding helmet with a face-mounted display. The system also includes a spatial tracker configured to track the welding helmet and the welding tool in 3-D space relative to an object to be worked on. A processor based subsystem is configured to generate visual cues based on information from the spatial tracker and transmit the visual cues to a predetermined location on the face-mounted display.

A system for aiding a user in at least one of welding, cutting, joining, and cladding operations is provided. The system includes a welding tool and a welding helmet with a face-mounted display. The system also includes a spatial tracker configured to track the welding helmet and the welding tool in 3-D space relative to an object to be worked on. A processor based subsystem is configured to generate visual cues based on information from the spatial tracker and transmit the visual cues to a predetermined location on the face-mounted display.

A system and method for calibrating a welding training apparatus. The system includes reference markers disposed in a 3-D space of a welding environment so as to have a known fixed orientation in the 3-D space of the welding environment. An image capturing device scans the welding environment, which includes a welding coupon or a workpiece. The image capturing device also captures an image of the welding environment. An object recognition device automatically identifies the welding coupon or the workpiece in the captured image and automatically associates a weld path to the identified welding coupon or workpiece. A calibration device automatically calibrates the welding training apparatus by correlating the weld path to the 3-D space of the welding environment based on the reference markers.

A system for aiding a user in at least one of welding, cutting, joining, and cladding operations is provided. The system includes a welding tool and a welding helmet with a face-mounted display. The system also includes a spatial tracker configured to track the welding helmet and the welding tool in 3-D space relative to an object to be worked on. A processor based subsystem is configured to generate virtual objects based on objects found in a welding environment and transmit the virtual objects to a predetermined location on the face-mounted display.

Lightweight, flexible protective fabrics for protecting a person, animal or other object from hot burning materials, hot high heat capacity and/or hot corrosive materials, such as hot molten metal, hot oily liquids (e.g., heating oil), hot gels, hot solids, hot sparks, and hot acids. The lightweight protective fabrics can be used to protect a person, animal or other object from hot molten metals, such as liquid metal zinc heated to a temperature of about 950 F. (510 C.) or greater, hot molten aluminum heated to a temperature of about 1150 F. (620 C.) or greater, burning phosphorus at temperature of about 1550 F. (843 C.) or greater, hot solid iron having a temperature of about 500 F. (260 C.) or greater, hot heating oil having a temperature of about 500 F. (260 C.) or greater, and hot hydrochloric acid having a temperature of about 300 F. (150 C.) or greater.