Optical articles, the mold and mold manufacturing method used in the production of optical articles

Together they can easily identify the defective portion of the molded product having a fine unevenness, even when the wound The compact provides a mold for fine unevenness transfer to prevent the fine concavo-convex structure modified that. A plurality of protrusions periodically on the surface is less than the wavelength of visible light, of a type used in the production of optical articles having a plurality of recesses formed between adjacent convex portions, the type, surface to said has a recess and a transfer region where the convex portion is provided with a convex portion and a concave portion complementary to the geometry of the optical article, the transfer area, the marking portion is provided, the height of the convex portion There is being lower than the height of the convex portion of the other portions of the transcribed region.