Littrow prism

例句：

1. 1. The scientist used a Litrow prism to analyze the spectrum of light.
   科学家使用棱镜来分析光的光谱。
2. 2. In astronomy, a Litrow prism is used to split light into its component colors.
   在天文学中，棱镜被用来将光分解成其组成部分的颜色。
3. 3. The artist used a Litrow prism to create a beautiful rainbow effect on her painting.
   艺术家使用棱镜在她的画作上创造出美丽的彩虹效果。