A helmet can include a helmet body and a shield. The helmet body can include a front portion and a tail portion, and the shield can include two ear portions connected by a brow portion. The shield can be releasably coupled to the helmet body. The ears of a helmet user can be exposed with respect to the helmet body and covered with respect to the shield. The brow portion of the shield can extend across the front portion of the helmet. The tail portion of the helmet can be tapered and the front portion of the helmet can have a rounded leading edge, such that the helmet body has a tear drop form factor.

An augmented-reality helmet which in one embodiment is a full-face motorcycle helmet with a look-down micro-display that projects a virtual image in-line with the helmet's chin bar. In order to accommodate the power requirements, the helmet includes a battery pack mounted at the base of the motorcyclist's skull. A wind turbine charges the batteries. Exhaust from the turbine is then deducted through the helmet to cool the battery pack and/or the motorcyclist's head. The turbine is controllable so that it can operate as a circulating fan to provide ventilation. A digital gyroscope provides a control input to a controller for operating a steerable headlight of the motorcycle to track the rider's head movements; and provides acceleration output to an algorithm that will contact emergency responders if the rider is non-responsive after a collision. A 170 degree rear-view camera is mounted within an aerodynamic fairing on the back of the helmet.

A helmet can include a helmet body and a shield. The helmet body can include a front portion and a tail portion, and the shield can include two ear portions connected by a brow portion. The shield can be releasably coupled to the helmet body. The ears of a helmet user can be exposed with respect to the helmet body and covered with respect to the shield. The brow portion of the shield can extend across the front portion of the helmet. The tail portion of the helmet can be tapered and the front portion of the helmet can have a rounded leading edge, such that the helmet body has a tear drop form factor.

A bicycle helmet includes a body, a plurality of air inlets and a plurality of air outlets. The body includes a front portion, an upper portion, a rear portion and an inner portion. The upper portion includes a closed surface. A plurality of dimple structures are formed on the closed surface to produce an aerodynamic effect. The air inlets are formed on the front portion. The air outlets are formed on the rear portion. The inner portion includes a plurality of ribs, the ribs are positioned correspondingly to the air inlet and the air outlet and define air channels therein, an airflow flows through the body due to the airflow entering the body through the air inlets, passing through the air channels and exiting the body through the air outlets.

A helmet with an outer shell, an inner liner, a plurality of vents, and an occipital cliff is disclosed. The outer shell includes an outer surface made up of a first and second surface, the first and second surfaces joined by a drop-off running across the outer surface from a left side of the helmet to a right side of the helmet. A majority of the drop-off is closer to a coronal plane bisecting the helmet than it is to the rear of the helmet. The drop-off is contained within a posterior section of the helmet defined by the coronal plane. The first surface defines a top of the drop-off and the second surface defines a bottom of the drop-off, such that the drop-off has a height. The occipital cliff is located at the rear end of the helmet and is approximately perpendicular to the second surface proximate the drop-off.

Disclosed herein are sports helmets having modular components. A modular component includes an eyewear adapter that is releasably attachable to the helmet and configured to interface with corresponding eyewear in an orientation that permits a wearer of the helmet to see through the eyewear. The eyewear adapter is configured such that, in use, the eyewear adapter enhances the fit or function of the eyewear relative to the use of the helmet and the eyewear without the eyewear adapter. A modular component includes electronics modules that can be mechanically and electrically coupled to the helmet. A modular component includes other functional modules that affect the aerodynamics of the helmet, the air flow of the helmet, the fit of the helmet, or the look of the helmet.

An augmented-reality helmet which in one embodiment is a full-face motorcycle helmet with a look-down micro-display that projects a virtual image in-line with the helmet's chin bar. In order to accommodate the power requirements, the helmet includes a battery pack mounted at the base of the motorcyclist's skull. A wind turbine charges the batteries. Exhaust from the turbine is then deducted through the helmet to cool the battery pack and/or the motorcyclist's head. The turbine is controllable so that it can operate as a circulating fan to provide ventilation. A digital gyroscope provides a control input to a controller for operating a steerable headlight of the motorcycle to track the rider's head movements; and provides acceleration output to an algorithm that will contact emergency responders if the rider is non-responsive after a collision. A 170 degree rear-view camera is mounted within an aerodynamic fairing on the back of the helmet.

A shield includes one or more protrusion members having shapes protruding from an outer surface of the shield are provided or, alternatively, one or more recesses having shapes depressed from the outer surface of the shield are carved. The one or more protrusion members or the one or more recesses are located at vicinities of both side positions on the shield for covering a face where the lateral width of the shield in right and left directions becomes a maximum.

A helmet having a flow guide wing and a use method are provided. The helmet includes a helmet body and a flow guide wing, where the flow guide wing is provided outside the helmet body; and in response to a shape and/or a position of the flow guide wing, when the helmet is used, the flow guide wing generates a vertical upward lift along a chord line. The flow guide wing is shaped as a symmetrical wing or a lifting wing. The flow guide wing is collapsible and/or detachable. The flow guide wing is horizontally or vertically provided. The helmet includes the helmet body and a guiding cover connected to the helmet body.

A safety helmet, in particular a safety helmet for drivers of single-track motorcycles, is provided. The safety helmet includes at least one movable aerodynamic stabilizing element and at least one sensor element for detecting one or more current driving state variables. The aerodynamic stabilizing element is controlled depending on at least one current driving state variable detected by the sensor element. An actuator element for moving the aerodynamic stabilizing element may be provided, and may be controlled by a control unit depending on at least one current driving state variable detected by the sensor element. One or more of the sensor element, actuator element and the controller may be supplied with electrical energy from an energy supply unit.