教学用光谱仪之改良

An improved educational spectrometer

介绍一改良的教学用光谱仪 (直视分光镜 ) ,利用发光二极体在完全黑暗的背景中标示谱线 ,并读出该位置谱线之刻度 ,进而求出其波长 ;克服了同类型教学用光谱仪之缺点 (谱线位置之刻度难以精密测量、较暗谱线不易观察等 ) .

A new design for a home-made spectrometer is proposed.An LED is utilized as an indicator to specify the position of spectrum.Therefore,the position of a given spectrum line can be measured more precisely and conveniently.The visional brightness of the spectrum is relatively enhanced by using this improved spectrometer.