发明名称 |
Method of manufacturing optical glass element |
摘要 |
A manufacturing method for an optical glass element having a refractive index equal to a design value after press-molding. A glass material of specified composition is melted and press-molded while it is in the molten state. The refractive index of the glass material is calculated by substracting a change in the refractive index of the glass material resulting from the press-molding from a required refractive index for a molded glass element.
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申请公布号 |
US5735920(A) |
申请公布日期 |
1998.04.07 |
申请号 |
US19970919334 |
申请日期 |
1997.08.28 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
OMORI, MASAKI;TANAKA, HIROE;NOMURA, TAKESHI;YAMAMOTO, KIYOSHI;TOMIDA, MASAYUKI;MASHIGE, MASASHI;MARUYAMA, SHIZUO |
分类号 |
C03B11/00;C03B11/16;C03C3/00;C03C3/064;C03C3/068;C03C3/093;G02B3/00;(IPC1-7):C03B11/16 |
主分类号 |
C03B11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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