| 发明名称 |
Optical glass elements having a graded refraction index for ir light and method for their production |
| 摘要 |
Optical glass elements with graded refraction index in the infra red region. The elements are made of doped oxygen free chalcogenide glass. The concentration of the dopant decreases from the periphery inward. Typical examples of dopants are As, S and Se. The glass elements are prepared by exposing an oxygen free chalcogenide glass to a molten chemical element or salt at about 150 DEG -400 DEG C. in an oxygen free atmosphere.
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| 申请公布号 |
US4867544(A) |
申请公布日期 |
1989.09.19 |
| 申请号 |
US19880231197 |
申请日期 |
1988.08.11 |
| 申请人 |
THE STATE OF ISRAEL, ATOMIC ENERGY COMMISSION, SOREQ NUCLEAR RESEARCH CENTER |
发明人 |
BORNSTEIN, AHARON;TSALACH, TSADOK |
| 分类号 |
C03C3/32;C03C21/00;G02B1/00;G02B13/00;G02B13/14 |
主分类号 |
C03C3/32 |
| 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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