| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a washing method by which a mold for a multiple lens arrays after continuous uses can be washed simply and easily. <P>SOLUTION: The whole surface of a die for a multiple lens array is immersed in a solvent containing practically no surfactant and having a relative evaporation speed (ASTM-D3539) of 1-6 and is irradiated with ultrasonic waves. Ethanol or acetone is preferably used as the solvent. Contaminants adhered to the molding surface of the mold (especially at the corner) can be removed in a short period. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
