The invention provides a method of manufacturing extremely precise glass optical element by thermally deforming optical glass on the optical surface of a thermal processing jig coated with chemically stable thin film, followed by the molding of optical glass preform having free surface on one side and transcribedsurface from the optical surface of the thermal processing jig by means of a press mold which thermally presses the optical glass preform.
申请公布号
US5171347(A)
申请公布日期
1992.12.15
申请号
US19920866265
申请日期
1992.04.10
申请人
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.;SUMITA OPTICAL GLASS, INC.