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31. 发明申请

US20080218386A1 Optical system and element for detecting ice and water 有权
标题翻译：用于检测冰和水的光学系统和元件
公开(公告)号：US20080218386A1
公开(公告)日：2008-09-11
申请号：US12152221
申请日：2008-05-13
申请人： Paul Levine
发明人： Paul Levine
IPC分类号： G08B21/00
CPC分类号： G08B19/02
摘要： An optical system for detecting ice and water on the surface of an aircraft includes an elongated transparent optical element having first and second end portions. A light source and light detector are disposed in one end of the optical element and a reflective surface is disposed in the opposite end portion. The reflective surface defines a critical angle and reflects light from the light source to the light detector when the critical angle is in contact with air and refracts the light toward the external environment when the reflective surface is in contact with ice or water. The system may also incorporate an optical element wherein the reflective surface includes a continuous array of convex elements extending outwardly from and across one end of the optical element and wherein each of the convex elements defines a critical angle.
摘要翻译：用于检测飞机表面上的冰和水的光学系统包括具有第一和第二端部的细长透明光学元件。光源和光检测器设置在光学元件的一端，并且反射表面设置在相对的端部。当反射表面与冰或水接触时，当临界角与空气接触并且将光折射到外部环境时，反射表面限定临界角度并将来自光源的光反射到光检测器。该系统还可以包括光学元件，其中反射表面包括从光学元件的一端向外延伸并穿过该光学元件的一端的连续阵列的凸起元件，并且其中每个凸起元件限定临界角。

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