会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 8. 发明授权
    • Injection compression molding method of a spectacle lens and a spectacle
lens produced by using the same
    • 眼镜片的注射压缩成型方法和使用该眼镜片的眼镜片
    • US5972252A
    • 1999-10-26
    • US758705
    • 1996-12-03
    • Kiyohiro SaitoTatsuo NishimotoHiroshi Asami
    • Kiyohiro SaitoTatsuo NishimotoHiroshi Asami
    • B29C45/56B29D11/00
    • B29D11/00413B29C45/561B29C2045/5615B29C2045/5625B29L2011/0016Y10S425/808
    • In an injection compression molding method of a lens, in which a mold is closed to preserve a predetermined compressing margin in a cavity 3 for a lens, molten resin is injected and fed into the cavity 3 for the lens, and compressed for the aforementioned predetermined compressing margin before or after the injection and the feed of the molten resin is completed, the predetermined compressing margin (the degree of slightly opening S.sub.(-)) for producing a minus lens is molded is defined to be larger than the predetermined compressing margin (the degree of slightly opening S.sub.(+)) for producing a plus lens is molded. As a result, even when the minus lens is molded, the larger area of the cavity can be ensure and a flow property of the molten resin in the cavity is improved, so that the molten resin reached the inside of the cavity 3 flow through the central portion of the cavity 3 into the peripheral portion, with the result that the appearance of a weld mark in the central portion is avoided.
    • 在透镜的注射压缩成型方法中,其中模具闭合以在透镜的空腔3中保持预定的压缩边缘,将熔融树脂注入并馈送到用于透镜的空腔3中,并压缩以用于上述预定的 在注射之前或之后压缩边缘并且熔融树脂的进料完成,用于制造负透镜的预定压缩边缘(稍微开口的程度S( - ))被定义为大于预定的压缩边缘( 成型用于制造正镜片的稍微开口的程度S(+))。 结果,即使在模制成负透镜的情况下,可以确保空腔的较大面积,并且提高熔融树脂在空腔中的流动性,使得到达空腔3的内部的熔融树脂流过 空腔3的中心部分进入周边部分,结果避免了在中心部分出现焊接痕迹。