Provided is an optical glass having high-refractivity low-dispersion properties, having a low glass transition temperature and having the property of being softened at a low temperature so that a preform therefrom is precision press-moldable, and the optical glass comprises, as essential components, B2O3, La2O3, Gd2O3 and ZnO and has a refractive index of over 1. A plurality of characteristic signatures H’s are determined for each of a plurality of windings. A driver circuit controls the relative output intensities of the light emitters so as to produce a desired light spectrum. The configuration data and the associated preparation code are transmitted from the central controller to a casino server. Also provided are regular structures comprising a plurality of self-assembled fusion proteins of the subject invention, and methods for producing the same.