公开(公告)号：US20040244422A1

公开(公告)日：2004-12-09

申请号：US10809408

申请日：2004-03-26

申请人： HOYA CORPORATION

发明人： Yasuhiro Yoneda ,  Teruo Yamashita

IPC分类号： C03B011/16

CPC分类号： G11B7/1374 ,  C03B11/08 ,  C03B11/16 ,  C03B2215/11 ,  C03B2215/12 ,  C03B2215/24 ,  C03B2215/60 ,  C03B2215/65 ,  C03B2215/66 ,  C03B2215/69 ,  C03B2215/72 ,  Y02P40/57

摘要： The present invention relates to a method of manufacturing a molded article in the form of an optical element such as a glass lens by heat-softening a glass material such as optical glass and press molding it with high precision in a pressing mold as well as an objective lens for optical picking up. The method of manufacturing comprises press-molding a molding material to make a molded article, measuring an optical property of the molded article, correcting pressing rate of at least one of the pressing molds based on the optical property thus measured, and further press-molding to make a molded article with the corrected pressing rate. A pressing device comprising a pair of pressing molds having molding surfaces processed to prescribed shape, and a means of driving one of the pair of pressing molds at a prescribed rate to press mold a molding material supplied between the pressing molds is disclosed. The device further comprises a means for detecting an optical property, a shape or a number of the molded articles and a means for controlling driving of said means of driving by correcting pressing rate of the molds based on the detected property, shape or number.

摘要翻译： 本发明涉及一种通过对诸如光学玻璃等玻璃材料进行热软化的玻璃透镜等光学元件的形状的制造方法，并且在压模中高精度地压制成型品， 物镜用于光学拾取。 制造方法包括：对成型体进行压制成型，测定成形品的光学特性，根据所测定的光学特性校正至少一个压模的冲压速度，进一步进行压制成形 以制造具有校正的按压速率的模制品。 公开了一种压制装置，其包括一对具有加工成规定形状的成型面的加压模具，以及以规定的速度驱动一对加压模具中的一个按压模具的装置，以将模压材料加压成型。 该装置还包括用于检测光学性质，形状或数量的模制品的装置，以及用于通过基于所检测的属性，形状或数量来校正模具的按压速度来控制所述驱动装置的驱动的装置。