[4] Joseph M Geary. Introduction to Lens Design with Practical ZE.MAXExamples[M]. Richmond: Willmann-Bell, Inc,2002．

[6] ZEMAX Development Corporation. ZEBASE Optical DesignDatabase 6.0 [Z]. USA: ZEMAX Development Corporation,2007:48-50．

[7] Harvey M Spence. Eyepiece design simplification throughthe use of aspherics [J]. Proceedings of SPIE, USA, 2004:592-598．

[8] Eyepiece designs with radial and spherical polymer gradi.ent-index optical elements [J]. Optical Engineering, 2013, 52(11): 112102(1-8).