The method includes forming a film on the optical substrate by using a coating liquid containing a metal alkoxide containing at least aluminum, immersing the film in a water containing liquid, baking the film having been immersed in the water containing liquid, and subjecting the film having been baked to treatment with warm water to form {HEAD ~ an aluminum} containing {TAIL ~ film} having a fine irregularity structure 
The method includes forming a film on the optical substrate by using a coating liquid containing a metal alkoxide containing at least aluminum , immersing the film in a water containing liquid , baking the film having been immersed in the water containing liquid , and subjecting the film having been baked to treatment with warm water to form { HEAD ~ an aluminum } containing { TAIL ~ film } having a fine irregularity structure
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH