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本文介绍棱镜分光光度仪PSPO的光学设计结果．PSPO以TH7832双线CCD作为系统探测器，可同时观测0．365－1.0微米波长范围内的天体及周围背景的低色散光谱．仪器的入射焦比为F／18，平均光谱分辨率约为10nm．本文简单介绍了PSPO的光学调整，并给出了波长校正实验和配备名古屋大学50公分望远镜进行试观测的结果．设计和实验结果表明，光学设计很好地满足了天文课题对仪器的设计要求，PSPO已可以应用于天文观测．
This article describes the results of the optical design of the prism spectrophotometer PSPO. PSPO TH7832 dual-line CCD as a system detector can simultaneously observe the 0.365-1.0 micron wavelength range of celestial bodies and the surrounding background of the low dispersion spectrum. The instrument has an incident focal ratio of F / 18 and an average spectral resolution of about 10 nm. In this paper, the optical adjustment of PSPO is briefly introduced, and the results of the wavelength calibration experiment and the observation with the 50cm telescope of Nagoya University are given. The design and experimental results show that the optical design meets the design requirements of the instrument well, and the PSPO can be applied to astronomical observation.