A welding helmet (100, 200, 300, 400, 500) having a filter arrangement is disclosed. The welding helmet is provided with a main filter (102, 202, 302, 402, 502) and at least one auxiliary filter (104, 204, 304, 404, 504) separate from and positioned next to the main filter. The at least one auxiliary filter comprises an electro-optic element (10, 20) adapted to attenuate the transmission of optical radiation incident on the auxiliary filter.

The present application discloses a wireless projector-type auto-darkening welding helmet comprising: a helmet housing; a headband structure for securing the helmet housing; an auto-darkening filter secured on the helmet housing; a wireless communication module; and a micro-projector which is data-connected to the auto-darkening filter and the wireless communication module, wherein when the auto-darkening filter is in a transparent state, the micro-projector is adaptable to project operating parameters of the auto-darkening filter and/or data received by the wireless communication module, as images, onto a plane in front of the welding helmet such that they can be watched by an operator who wears the welding helmet on his/her head. The present application also discloses a welding apparatus equipped with said wireless projector-type auto-darkening welding helmet.

A welding helmet includes a helmet shell and a lens device mounted on the helmet shell. The lens device includes a filter control module and a single LCD panel. The logic control module controls the transmittance of the single LCD panel based on a sensed light signal and a shading-level signal designated by a user. Therefore, when the welding helmet is operated in an environment having intense light such as a welding arc, the single LCD panel will turn dark and lower its transmittance to block the intense light.

Provided is a welding helmet maintaining a power-on state after initial power is applied thereto, the welding helmet including: a circuit unit controlling a shutter liquid crystal display (LCD) based on at least one of whether welding light exists and an intensity of the welding light; a power supply unit supplying power to the circuit unit; and a switch unit controlling electrical connection between the circuit unit and the power supply unit, wherein after being initially switched to an on state, the switch unit maintains the on state.

Embodiments of systems and methods related to the automatic adjustment of auto-darkening filter device parameters in response to settings of a welding system are disclosed. One embodiment includes a head-mounted device having a wireless receiver, an auto-darkening device, and a selection device. The wireless receiver is configured to receive wirelessly transmitted communication signals from an arc welding system which represent a present welding current setting and a present welding mode setting of the arc welding system. The selection device is configured to automatically select a shade and a sensitivity of the auto-darkening device in response to the present welding current setting and the present welding mode setting. The auto-darkening device is configured to sense the presence of an arc, transition from an un-darkened state to a darkened state in response to the arc, and transition from the darkened state to the un-darkened state when the arc is no longer present.

An exposure-indicating supplied air respirator system comprises a head top, a clean air supply source and a portable personal communication hub. The head top comprises a visor that is sized to fit over at least a user's nose and mouth, a position sensor secured to the head top, and a head top communication module. The clean air supply source is connected to the head top that supplies clean air to the interior of the head top. The position sensor detects whether the visor is in a closed position or in an open position and the head top communication module communicates the visor position to the personal communication hub. If the personal communication hub receives a signal indicating the presence of a hazard, and if the visor is in an open position, an alert is generated.

Sensor assisted head mounted displays for welding are disclosed. Disclosed example head mounted devices include an optical sensor, an augmented reality controller, a graphics processing unit, and a semi-transparent display. The optical sensor collects an image of a weld environment. The augmented reality controller determines a simulated object to be presented in a field of view, a position in the field of view, and a perspective of the simulated object in the field of view. The graphics processing unit renders the simulated object based on the perspective to represent the simulated object being present in the field of view and in the weld environment. The display presents the rendered simulated object within the field of view based on the position. At least a portion of the weld environment is observable through the display and the lens when the display is presenting the rendered simulated object.

A welding helmet includes a helmet housing; a headband structure for securing the helmet housing; a Head Up Display (HUD)-type auto-darkening filter secured in the helmet housing; and a light-permeable protective sheet installed in front of the HUD-type auto-darkening filter in the helmet housing, wherein the HUD-type auto-darkening filter comprises a head-up display which is used to reveal operating parameters of the auto-darkening filter, and the head-up display is arranged between a body of the auto-darkening filter and the protective sheet such that when the auto-darkening filter is in a transparent state the luminously revealed operating parameter of the auto-darkening filter can be imaged via the protective sheet into the eyes of an operator who wears the welding helmet.

An auto-darkening welding helmet includes a helmet housing; a headband structure connected to the helmet housing; an auto-darkening filter provided on the helmet housing; and an adjustment device by which operating parameters of the auto-darkening filter are adjustable, wherein the adjustment device is a touchable operating screen which faces towards an operator after the operator wears the welding helmet.

Provided is a light attached to a helmet where the light does not move when a face shield of the helmet is rotated up or down.