[1] Stone T, George N. Hybrid diffractive-refractiive lenses and achromats. Appl. Opt., 1988, 27(14):2960~2971
[2] Czichy R H, Doyle D B, Mayor J M. Hybrid optics for space applications -Design, manufacture and test-. Proc. SPIE, 1992, 1780:333~344
[3] Wood A P. Design of infrared hybrid refractive-diffractive lenes. Appl. Opt., 1992, 31(13):2253~2258
[4] Philip J Rogers. Use of hybrid optics in 3~5 μm infrared band. Proc. SPIE, 1995, 2540:13~20