1. a glass prism used in an optical range finder and other instruments that performs the double function of changing the direction of the light rays by 90 degrees and reversing the image right to left — compare porro prism
roof prism 片语
片语
roof-angle prism脊角棱镜
Abbe roof prism阿贝屋脊棱镜
shimite roof prism光栅
roof prism 例句
英汉例句
the automatic test of corner cube reflector (ccr), roof prism and right-angle prism is achieved by calculating the wavefront got from the digital phase-shifting interferometer.