A helmet has a helmet shell and a visor pivotally connected to the helmet shell. The helmet further has an electrical device attached to one of the visor and the helmet shell. First and second helmet electrical contacts are attached at both sides of the helmet and are adapted for electrically connecting to an electrical power source. First and second visor electrical contacts are attached to each side of the visor and are electrically connected to the electrical device. The first and second visor electrical contacts are pivotally connected to the helmet shell about first and second pivot axes respectively. The first and second visor electrical contacts are in contact with the first and second helmet electrical contacts respectively, at at least one position of the pivoting visor.

A helmet has a helmet shell and a visor. The visor is attached to a visor heating element. The helmet has a controller adapted to control the amount of electrical power being supplied from a power source to the visor heating element.

A LED safety light for a snowmobile helmet is provided. The LED safety light includes a RCA male connector, a RCA female connector, and a LED light strip configured to attach to an outer surface of the snowmobile helmet. A double layered junction block includes an outer cover and an inner cover housing a PCB and at least a portion of the RCA female connector. The outer cover completely encapsulates the inner cover, wherein the junction block is configured to attach to the outer surface the snowmobile helmet. The RCA female connector is configured to be electrically connected to an auxiliary power output port of a snowmobile to provide power for the LED safety light and the RCA male connector is configured to electrically connect to a power input of a heated shield power input of the snowmobile helmet.

A goggle with an anti-fogging lens including a body portion operable to interface with a face of a user. The goggle body includes a power source and a body magnet. The power source is in electrical connection with the body magnet. Additionally, the goggle includes a lens portion operable to be removeable coupled to the body portion. The lens portion includes a lens, a resistive element coupled to the lens and operable to heat the lens, and a lens magnet in electrical connection with the resistive element. The body magnet and the lens magnet form complementary magnetic fields operable to hold the lens portion to the body portion, the lens magnet is operable to conduct electricity from the power source to the resistive element.

A helmet has a helmet shell, a visor connected to the helmet shell, an electrical device attached to at least one of the helmet shell and the visor, and an electrical connector assembly. The electrical connector assembly has a flexible member having a first end magnetically connected to the helmet shell, which is electrically connected to the electrical device. The electrical connector assembly also has a connector connected to a second end of the flexible cord that is electrically connected to the electrical device via the flexible cord. The connector is adapted to connect to a power source.

A helmet has a helmet shell and a visor. The visor is attached to a visor heating element. The helmet has a controller adapted to control the amount of electrical power being supplied from a power source to the visor heating element.

A multifunctional lens assembly includes a functional transparent plate and a layered adhesive body. The functional transparent plate includes spaced apart through holes disposed in an outer peripheral region thereof. Each through hole extends through two opposite surfaces of the outer peripheral region. The layered adhesive body is attached to the functional transparent plate for adhering the functional transparent plate to a face shield of a mobile helmet. The layered adhesive body has a first layer 61 disposed on one of the two opposite surfaces of the outer peripheral region facing toward the face shield, and connection studs respectively extending through the through holes and integrally connecting the first layer.

A method, equation, system, and device for electrically heating Indium Tin Oxide (ITO) and other transparent conductive materials having a uniform sheet resistivity for defogging and de-icing in a cold environment. The use of nonparallel busbars for connecting the conductive materials reduces excessive and dangerous hot zones. The mathematical analysis and equations provide a means of precisely providing an intermittent electrical connection so that the Watt density and heating is uniform, allowing much higher temperature for de-icing and defogging and more efficient use of energy. This same concept can be used for three dimensional formed heaters to compensate for non uniform sheet resistivity. Also shown are a means of improved busbar designs and an equation and a means of altering sheet resistivity to produce electric heaters with non parallel busbars of various shapes for uniform heating and Watt density.

A helmet has a helmet shell. The helmet shell defines an inner space and a passage. The passage has an open end. The passage fluidly communicates with the inner space via the open end. The helmet further comprises an electrical heating device. The electrical heating device is disposed within the helmet shell for heating the passage.

The invention relates to a method for regulating, by means of a computer, a resistive element arranged to deice and/or demist a support, the method comprising:

a) a loop for monitoring the temperature T and the moisture level H at the support;

b) a deicing and/or demisting sequence which, as long as the temperature T and the moisture level H monitored by the monitoring loop a) are indicative of an absence of frost or mist on the support, keeps the resistive element inactive and, in the contrary case, demands, in a step b2), the circulation of a current I in the resistive element so that the latter dissipates a thermal power P.sub.th, adjusted according to the temperature T and the moisture level H, and providing deicing or demisting of the support over a predetermined period D.sub.p.