An antireflection film is formed of an organic film, and a hard-coating layer, a high refractive index layer and a low refractive index layer laminated in this order on the organic film. The fine powders may be admixtures of host matrix materials and others which, when combined, provide preferred optical properties such as index and dispersion. The thin layer of silicon may be substantially removed from the surface of the dielectric during the chemical vapor deposition. The third service module has a third service routine or a third group of service routines that is denied to the operator. In various embodiments, the facility receives a message containing an indication of contextual information, decodes the indication to determine an identifier for the contextual information, and provides a command for loading the contextual information. A power supply line from a battery and a driving means are connected by a switching means only at a time when a feed signal from a host first control means to a drive control means, a power supply-enabling signal from the host first control means and a power supply-enabling signal from a host second control means are input to the switching means.