An improved method for forming plastic molds for casting articles having an optical surface such as contact lenses employs a plastic tool having an optically smooth surface.
申请公布号
US5951934(A)
申请公布日期
1999.09.14
申请号
US19960681648
申请日期
1996.07.29
申请人
WICKES, GEORGE L.;OPDYKE, KENNETH L.;APPLETON, WILLIAM J.;VANDEWINCKEL, JEFFREY M.
发明人
WICKES, GEORGE L.;OPDYKE, KENNETH L.;APPLETON, WILLIAM J.;VANDEWINCKEL, JEFFREY M.