Fig. 1. Structure and parameters of AMLA

Fig. 2. Five-axis ultraprecision machining platform

Fig. 3. Procedure of AMLA multi-axis milling

Fig. 4. Profile variation between lens and mold at different stages of glass molding

Fig. 5. Toolpath generation for single aspherical lens

Fig. 6. Equal angle discretization method

Fig. 7. Experimental setup for fabrication of AMLA

Fig. 8. Geometric feature of single crystal diamond tool

Fig. 9. Aspherical microlens array mold

Fig. 10. Seven-station glass molding machine

Fig. 11. PGM process parameters

Fig. 12. Aspherical microlens array glass lens

Fig. 13. Three-dimensional topography and cross sectional profile of lens

Fig. 14. Measurement of lens profile data

Fig. 15. Form error before and after compensation of lens

Fig. 16. PV of surface error and roughness of lens