基本信息

• 发明名称： 【发明专利】 Improvements in or relating to Internal Reflection Elements
• 申请日： 1970-08-16
• 申请号/专利号： GB533567
• 专利权人： 无
• 申请人： PHILIPS ELECTRONIC ASSOCIATED
• 分类号：
• 发明人/设计人： 无
• 公开日/公告日： 1970.08.17
• 优先权号：
• 代理机构：
• 代理人：
• PCT申请号： 无
• PCT申请日期： 无
• PCT进入国家阶段日： 无
• 生物宝藏信息： 无
• 审查员： 无

摘要：1,174,005. Optical apparatus. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Feb.3, 1967 [Feb.4, 1966], No.5335/67. Heading G2J. An element for use in A.T.R. spectroscopy is coated with a thin film 2, Fig. 2, of low refractive index and a second film 3 of high refractive index so that a beam 10 coming through the element is partially reflected at interface R 1 , 3 as beam 22 and partially transmitted as beam 18. On reaching the interface R 3,4 . the beam 18 interacts with the sample 4 and returns as beam 20 for further splitting up at interface R 1,3 . into beams 221, 181, so that the initial beam has a portion forming multiple reflections in the layer 3 and thus enhancing the absorption which is characteristic of sample 4. By arranging the reflectivity of interface R 1,3 to match that at interface R 3,4 and controlling the phase of components 221 so that they are 180 degrees out of phase with component 22, by suitably dimensioning the films 2, 3, and using polarized light, substantially complete absorption can be achieved at a wavelength characteristic of sample 4.

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