| 摘要 |
A method for precison polishing non-planar, aspherical surfaces in substrates, particularly surfaces of molding tool substrates for molding optical surfaces therewith, which is accomplished by coating the non-planar, aspherical surface with a layer of material having a melt temperature which is less than a temperature at which the substrate will distort, heating the layer of material coated on the non-planar, aspherical surface to at least the melt temperature thereby flowing the layer of material to yield a surface tension smooth surface superimposed over the non-planar, aspherical surface, and etching the surface tension smooth surface down into the substrate to completely remove the layer.
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