Fig. 1. Top view of position relationship between central aspheric and off-axis aspheric

Fig. 2. Two relationship between center aspheric coordinate and off-axis aspheric coordinate

Fig. 3. 测量坐标系XYZ与离轴非球面坐标系X_SY_SZ_S的偏转关系Coordinate deflection between real measuring coordinate XYZ and off-axis coordinate X_SY_SZ_S

Fig. 4. 仿真理想椭球面和镜面残余误差以及恢复面形Simulating ideal aspherical surface and its residual and reconstructed surface residual

Fig. 5. Surface error of the 570 mm off-axis-elliptic mirror

Fig. 6. Surface error of the 570 mm off-axis-elliptic mirror after several times grinding

Fig. 7. 220 mm×96 mm rectangle-shaped off-axis ellipsoidal mirror and side structure sketch

Fig. 8. Surface error of the 220 mm×96 mm rectangle-shaped off-axis mirror