Abstract: A helmet selection/customization process, which comprises obtaining a 3D scan of a user's head; identifying a retail helmet variant that would fit the user's head; providing the user with an option to select the identified retail helmet variant or design a custom liner for a base helmet; and in case the user selects to design a custom helmet, causing generation of a 3D model of a custom liner based on the 3D scan and a 3D model of the base helmet. The method includes determining, based on the 3D scan, parameters associated with the user's head; and accessing a database storing parameters associated with a plurality of retail helmet variants, wherein the identifying is carried out based on processing of the parameters associated with the user's head and the parameters stored in the database, so as to identify one of the variants in the plurality of retail helmet variants.

Abstract: A thin-film magnetic head includes a substrate having first and second magnetic layers disposed above the substrate and formed as a laminated sequence of magnetic sub-layers. The first and second magnetic layers have corresponding first ends representing a pole tip region of the head, corresponding second ends representing a back gap region of the head, and corresponding intermediate portions representing an intermediate region of the head between the pole tip region and the back gap region. The first and second magnetic layers are joined together in physical contact at the back gap region and are spaced from one another at the pole tip region and at the intermediate region. A nonmagnetic gap layer is disposed between the first and second magnetic layers at the pole tip region. A magnetic coil structure is disposed between the first and second magnetic layers at the intermediate region.