The Improvement of high-resolution DVD spectroscope and the development of teaching materials on spectroscopy

作者几年前研制的DVD分光镜（F. Wakabayashi， J. Chem.）。建造。（1998）在科学教育中的应用得到了改进。它的分辨率比以前好得多，光谱的获取也比以前容易得多。作者表明，使用非常便宜的WEB相机可以观察到相当高质量的光谱。该方法可将观测到的光谱图像实时投影到屏幕上，并可同时记录在PC机上，方便教学。记录的光谱图像可以立即使用ImageJ和电子表格软件进行数值分析。因此，使用非常便宜和普通的设备就可以很容易地获得频谱图。本文给出了所得光谱的实例。

The DVD spectroscope that had been developed by the author several years ago (F. Wakabayashi, J. Chem. Educ., 1998) was improved for its utilization to the science education. Its resolution became much better than before and acquiring spectra became much easier than before. The author showed that spectra of reasonably good quality can be observed using a very cheap WEB camera. This method is very convenient for the educational purpose because the image of observed spectrum can be projected on the screen in real time and can be simultaneously recorded in PC. The recorded spectrum image can be immediately analyzed numerically using ImageJ and spreadsheet software. Thus spectrum chart can be easily obtained using very cheap and common equipment. The examples of obtained spectra are shown in this report.