| 摘要 |
<p>A substrate (12), bearing a coating having a thickness which varies in more than one direction across the surface of the substrate, is prepared by a process wherein the substrate is immersed into a coating medium (14) bath, then withdrawn in a predetermined direction and at a predetermined rate, and simultaneously pivoted at a predetermined angular velocity about an axis (20) which is orthogonal to the direction of withdrawal. <IMAGE></p> |
