发明名称 |
SELF - LUMINESCENT LIGHT SOURCE FOR LIQUID CRYSTAL DISPLAY WATCH |
摘要 |
A luminescent body layer has an optic reflection property, and contains a radioactive element partially. A reflection layer reflects or scatters a fluorescence coming from the luminescent body layer. A case shields a x-ray due to a radioactive material. A cover absorbs a radial ray, transmits coming from the fluorescent body layer.
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申请公布号 |
KR830001002(A) |
申请公布日期 |
1983.05.24 |
申请号 |
KR19790000873 |
申请日期 |
1979.03.22 |
申请人 |
HITACHI LTD. |
发明人 |
DAKAMI KASSMI;MASSHAWA DAKASI |
分类号 |
G04C19/00;(IPC1-7):G04C19/00 |
主分类号 |
G04C19/00 |
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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