WRT Convex lenses: he could flip the lens upside down to allow gravity to pull the pools of resin off the lens. Also, he may be able to spin it on a surface, l

WRT Convex lenses: he could flip the lens upside down to allow gravity to pull the pools of resin off the lens. Also, he may be able to spin it on a surface, like what is done for coating silicon in order to spread the resin evenly across the surface. http://webnemo.uniroma2.it/new/img/spincoating.gif http://webnemo.uniroma2.it/new/img/spincoating.gif