| 摘要 |
<p>PURPOSE: To sufficiently remove a soiling without damaging smoothness, uniformity, etc., and without damaging a surface by executing a washing stage with a water under high pressure at the time of washing an optical material. CONSTITUTION: The washing stage using high pressure spraying of water from a spray nozzle is executed at the time of washing the optical material such as eyeglass lens and camera lens formed with a (meth)-acrylate resin. Moreover, at least either one of a surfactant based washing stage and a rinsing stage is executed. The washing is executed by spraying water under high pressure to the optical material at 0-90 deg.C, preferably 5-80 deg.C. In this way, the soiling is sufficiently removed without causing a dry spot on the surface of a resin made optical material.</p> |
