Fig. 1. Schematic diagram of off-axis two-mirror laser shaping system

Fig. 2. Grid division. (a) Cross section of rectangle incident beam; (b) target surface

Fig. 3. Schematic diagram of sampling point calculation on freeform surface

Fig. 4. Calculation of data points. (a) Calculation of data points on adjacent curves; (b) calculation of all data points on the reflective surface

Fig. 5. Freeform mirror. (a) Three dimensional data points on the surface; (b) curved surface

Fig. 6. Schematic diagram of off-axis two-mirror optical system

Fig. 7. Irradiance distribution. (a) Cross section of incident laser light; (b) target surface

Fig. 8. Grid division. (a) Cross section of square incident beam; (b) target surface

Fig. 9. Irradiance distribution of the shaping system and its target surface . (a) Optical path diagram of the shaping system; (b) radiation distribution of the target surface

Fig. 10. Effect of surface processing error on uniformity