| 摘要 |
A lapping tool for grinding or polishing glass such as optical lens having exact curvature with the lens to be worked is manufactured by pouring a liquid resin into a mold having incompatability with the liquid resin at a portion corresponding to pellets to be adhered onto a blank dish body, and then hardening the resin in the mold, while the blank dish body is being press-contacted against the mold surface thus, molding the pellets onto the tool blank. The mold is shaped to a precise curvature of the lens to be worked by means of a master lapping tool equipped with lapping pellets.
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