给出了一种椭圆偏振光谱的快速测量方法 ,并使得实验系统的结构更为紧凑和小型化 ,减轻了重量 .研究中采用了由面阵型CCD探测器和平面多光栅组成的光谱仪 ,无需光栅扫描 ,就能够在很短时间内对光谱进行快速准确的数字凝视式成像 ,光谱分辨精度优于 1.0nm ,显著提高了系统工作的可靠性和效率 .系统采取了将CCD光谱仪后置的方式 ,研究并解决了从物理光学原理、器件设计和加工、系统调试和定标、软件编制以及到光谱测量和数据分析等一系列问题 .实验中对典型贵金属Au的光学常数谱进行了测量 ,获得了满意的结果 . A rapid measurement method of elliptical polarization spectrum is presented and the structure of the experimental system is more compact and miniaturized.The weight of the experimental system is reduced.A spectrometer consisting of an area array CCD detector and a planar multi- Scan, we can quickly and accurately digitize the spectrum in a short time staring imaging, spectral resolution accuracy better than 1.0nm, significantly improve the reliability and efficiency of the system work.The system takes the CCD spectrometer post-way, Research and solve a series of problems, such as the principles of physical optics, device design and processing, system debugging and calibration, software preparation and spectrum measurement and data analysis, etc. The optical constant spectra of typical precious metal Au were measured and obtained Satisfying result .