Technical Transformation of the Horizontal Multi-Waveband Sofar Solar Spectragraph of the Yunnan Observatory

This paper introduces the technical transformation of a 40-cm solar telescope and a multi-waveband spectrograph.A higher precision and controllable revolving stage of the 45° Mirror,a special-purpose camera which can produce different frames,an automation system controlled by a microcomputer and a telescopic electrical control system are developed to realize the three-dimensional observation of the Sun.