A GPS device is configured to allow a driver to enter personalized texts or record voices that are to be accessed as direction instructions. The layered product for fine pattern formation of the present invention used to form a fine pattern in a processing object using a first mask layer includes: a mold having a concavo-convex structure on a surface; and a second mask layer provided on the concavo-convex structure, wherein in the second mask layer, a distance and a height of the concavo-convex structure satisfy Formula 0<lcc<1. This optical fiber has two ends, and light from the light source enters one end, whereas the light is sent out from the other end to irradiate any given area. The light source injects light into the wide end of the tapered light guide sheet and the tapered sidewalls of the light guide sheet allow the light to escape out of the light guide sheet and in the general direction of the narrow end of the tapered light guide sheet, thereby allowing the lampshade to act as an up-light or down-light, depending on the direction that the narrow end is pointing.