Fig. 1. Schematic of beam translation system

Fig. 2. Coordinate transformation of double pentaprism system

Fig. 3. Transformation of object and image coordinate systems

Fig. 4. Optical path variation of beam translation system rotating around z-axis

Fig. 5. Simulation model of double pentaprim system

Fig. 6. Principle of system assembly and adjustment

Fig. 7. Schematic of two-dimensional operation of beam translation system

Fig. 8. Variation of error vector of emergent light with two-stage working angles. (a) Variation on y-axis; (b) variation on z-axis

Fig. 9. Autocollimation method for detecting beam translation components