An Introduction to the Optics Manufacturing Process
· polishing, a mixture of wood tar pitch and colophonium (a type of resin) is used. Pitch is adhered to a polishing tool which is the inverse of the radius of optic being polishing. The tool with the pitch will be placed on the optic and rubbed together, much like the grinding process. As the polishing process continues, the pitch will slowly conform to the shape of the optic so that the surface ...