发明名称 |
DETERMINING THE SUITABILITY OF AN OPTICAL MATERIAL FOR THE PRODUCTION OF OPTICAL ELEMENTS, CORRESPONDING DEVICE, AND USE OF SAID MATERIAL |
摘要 |
The method tests the suitability of an optical material having a radiation-induced absorption, especially of an alkali or alkaline earth halide, for production of an optical element exposed to high-energy irradiation. The method includes pre-irradiating the optical material with laser radiation until rapid damage induced in the optical material with the laser radiation is saturated; subsequently measuring fluorescence of the optical material during and/or immediately after irradiating the optical material with excitation radiation and determining the non-intrinsic fluorescence and intrinsic fluorescence present in the measured fluorescence. Suitability may be preferably determined according to a ratio of the amount of non-intrinsic fluorescence to intrinsic fluorescence. A device for performing the method including a barrier device for blocking scattered excitation radiation is also provided. |
申请公布号 |
EP1552281(B1) |
申请公布日期 |
2016.08.31 |
申请号 |
EP20030797179 |
申请日期 |
2003.09.16 |
申请人 |
HELLMA MATERIALS GMBH & CO. KG |
发明人 |
MÜHLIG, CHRISTIAN;TRIEBEL, WOLFGANG;ALKEMPER, JOCHEN;MARTIN, REGINA |
分类号 |
G01N21/64 |
主分类号 |
G01N21/64 |
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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