The adjustment of telescope in 1. spectrometer is a key step, and the adjustment of telescope is an important basis for other adjustments. Only by adjusting the telescope can we adjust the collimator and measure the angle. In addition, the adjustment of the telescope is also a difficult step in all adjustments, and it takes some time to adjust, so it is very important.

2. The adjustment principle is self-collimation, which is determined by the structural design of the instrument. It can be called semi-tuning or semi-tuning.

3. No problem. Adjusting the optical axis of the telescope does not mean that the stage is horizontal. If the flat mirror is placed in different positions on the stage, the returned image may not be consistent with the adjusted alignment line.

But there is no problem with the telescope at this time.