prism spectroscope

1. The optical systems often consist of the optical accessories of the lens 、 prism 、 spectroscope 、 reflector and so on, their surfaces usually contain two classes which are sphere and plane.
   一般的光学系统是由透镜、棱镜及分光镜、反射镜等光学零件组成，其面形通常是球面和平面两大类。

noun

1. an optical instrument for spectrographic analysis

   Synonym:    spectroscope