发明名称 |
Gradient-index optical element and its fabrication method |
摘要 |
A gradient-index optical element comprises SiO2, BaO, and TiO2 as essential components, and has a refractive index profile in its diametrical direction. The molar ratio of barium to silicon at the center of the element in its diametrical direction is limited to Ba/Si>=0.4. This gradient-index optical element has a small refractive index difference with reduced chromatic aberrations and, hence, is suitable for use with optical equipment.
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申请公布号 |
US6174828(B1) |
申请公布日期 |
2001.01.16 |
申请号 |
US19980124007 |
申请日期 |
1998.07.29 |
申请人 |
OLYMPUS OPTICAL CO., LTD. |
发明人 |
MORITA YUKO;NODA SATOSHI;KINOSHITA HIROAKI |
分类号 |
C03B8/02;C03B19/12;C03C1/00;C03C3/078;C03C4/00;G02B3/00;(IPC1-7):C03C3/078 |
主分类号 |
C03B8/02 |
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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