The present invention provides a lens sheet capable of preventing reflection of extraneous light without decreasing extraneous light absorption, having extraneous light absorbers that can be readily formed by printing and are scarcely stained. Preferably the solutionsuspension of the substance is introduced separately from the second vehicle, in such a way that contact between the solutionsuspension and the second vehicle occurs either substantially simultaneously with, or immediately before, their dispersion by the supercritical fluid and extraction of the vehicles by the supercritical fluid. After a change in configuration of a component is detected, a report is sent by a configuration database to a central management system.