A personal protection system for providing a sterile barrier around medical/surgical personnel. The system may include a head unit over which surgical garment such as a hood or a toga may be suspended over. The surgical garment may include a sterile material and a shield configured to be disposed in front of the wearers face when disposed over the head unit. The shield may comprise an anti-reflective coating configured to reduce the glare observed by the individual through said shield. The head unit may comprises a light assembly that is disposed on the wearers side of the surgical garment, and an inner surface of said surgical garment may comprise a light reflective material configured to reduce the amount of light emitted from said light assembly that is reflected back toward the individual.

A sound amplifying bowl assembly includes a grommet has an inner lip that is spaced from an outer lip to define an engaging slot between the inner lip and the outer lip. The inner lip is extendable through an ear hole in a helmet thereby facilitating a bounding edge of the ear hole to engage the engaging slot. In this way the grommet is retained in the ear hole. The grommet has a sound hole extending therethrough to pass audible sound into the helmet. A bowl is integrated into the grommet and the bowl is concavely arcuate such that a curvature of the bowl has a focus that is aligned with the sound hole in the grommet. In this way the bowl can direct the audible sound into the ear hole. Thus, the bowl enhances a user's ability to hear the audible sound when the user is wearing the helmet.

A sound amplifying bowl assembly includes a grommet has an inner lip that is spaced from an outer lip to define an engaging slot between the inner lip and the outer lip. The inner lip is extendable through an ear hole in a helmet thereby facilitating a bounding edge of the ear hole to engage the engaging slot. In this way the grommet is retained in the ear hole. The grommet has a sound hole extending therethrough to pass audible sound into the helmet. A bowl is integrated into the grommet and the bowl is concavely arcuate such that a curvature of the bowl has a focus that is aligned with the sound hole in the grommet. In this way the bowl can direct the audible sound into the ear hole. Thus, the bowl enhances a user's ability to hear the audible sound when the user is wearing the helmet.

An informatics system that can be head-worn under a helmet and used to provide a wearer's vital statistics and other information to a remote monitoring station, for example in connection with pre-hospital emergency care.

An augmented-reality system is combined with a surveying system to make measurement and/or layout at a construction site more efficient. A reflector can be mounted to a wearable device having an augmented-reality system. A total station can be used to track a reflector, and truth can be transferred to the wearable device while an obstruction is between the total station and the reflector. Further, a target can be used to orient a local map of a wearable device to an environment based on a distance between the target and the wearable device.

An augmented-reality system is combined with a surveying system to make measurement and/or layout at a construction site more efficient. A reflector can be mounted to a wearable device having an augmented-reality system. A total station can be used to track a reflector, and truth can be transferred to the wearable device while an obstruction is between the total station and the reflector. Further, a target can be used to orient a local map of a wearable device to an environment based on a distance between the target and the wearable device.

A headset includes two earcups that overlie and seal around the wearer's ears. The headset includes a system for suspension of the earcups on a helmet, as well as a speaker enclosure that provides increased structural strength without taking up additional space on the board.

Implementations of a helmet liner are provided. In some implementations, the helmet liner may be configured to be worn in conjunction with a helmet and/or a headset (e.g., a communication and/or hearing protection headset). In this way, the helmet liner may be used to provide localized thermal comfort for the wearer's head when a helmet and/or a headset is worn. In some implementations, the helmet liner may have a dome-like shape configured for anatomically fitting the head of a wearer. In some implementations, the helmet liner may comprise a front portion, a top portion, a back portion, a first side portion, and a second side portion. In some implementations, the helmet liner may further comprise a first slot and a second slot that extend through the first side portion and the second side portion, respectively.

Implementations of a helmet liner are provided. In some implementations, the helmet liner may be configured to be worn in conjunction with a helmet and/or a headset (e.g., a communication and/or hearing protection headset). In this way, the helmet liner may be used to provide localized thermal comfort for the wearer's head when a helmet and/or a headset is worn. In some implementations, the helmet liner may have a dome-like shape configured for anatomically fitting the head of a wearer. In some implementations, the helmet liner may comprise a front portion, a top portion, a back portion, a first side portion, and a second side portion. In some implementations, the helmet liner may further comprise a first slot and a second slot that extend through the first side portion and the second side portion, respectively.

A helmet system comprising a distributed processing system includes a central helmet CPU and multiple subsytem processors. The helmet CPU provides configuration settings to the subsystem processors and receives, from each of the multiple subsystem processors, data derived by the subsystem processor based on one or more sensors located in situ with the subsystem processor. The helmet CPU consolidates the derived data for determining one or more operating conditions of the helmet system and characteristics of an environment surrounding the helmet system.