木专利提供一种用于对火焰或爆炸进行光学探测的仪器,该仪器有一个能对接收光学辐射的光学窗口进行连续光路监视的光学结构,因而可避免辐射吸收或散射物质的堆积。外壳内的一个光源对穿过外壳伸向光学窗口外面的一根直的透 The wood patent provides an instrument for the optical detection of flames or explosions which has an optical structure that allows continuous optical path monitoring of optical windows that receive optical radiation so that accumulation of radiation absorbing or scattering materials can be avoided. A light source in the housing extends through the housing to a straight through of the optical window