Optical apparatus and instruments, namely, optical lenses; correcting optical lenses; spectacle glasses, spectacle lenses, namely, mineral lenses, plastic optical lenses, correcting eyeglass lenses, progressive optical lenses, lenses for sunglasses, polarising optical lenses, tinted spectacle lenses, photochromic optical lenses, light-sensitive optical lenses, treated optical lenses, coated optical lenses, non-reflecting optical lenses, semi-finished optical lenses; spectacle lens blanks; sem...