[1] [1] Analysis of short focal projector technology［J］. China Educational Technology, 2009, (7):126.

[4] [4] SONG Jia-jun, HE Ping-an. Design of zoom projection lens for the light engine of LCOS rear-projection ［J］. Journal of Applied Optics, 2007, 28(1):58-62.

[5] [5] CHEN Chen, LI Wei-shan, ZHANG Yu, et al. Optical design of short focal digital projection lens ［J］. Acta Photonica Sinica, 2011, 40(14): 1855-1859.

[6] [6] CHEN CH, LIU Xiao-chan, LI Wei-shan, et al. Design of light weight small wide-angle projection lens ［J］. Acta Photonica Sinica, 2011, 40(8): 1266-1269.

[7] [7] LI Wei-shan, CHEN Chen, ZHANG Yu, et al. Optical design of digital movie zoom projection lens ［J］. Acta Photonica Sinica, 2012, 41(10): 1186-1192.

[8] [8] YONEYAMA K. Wide-angle projection lens and projection-type image display device: US, 6542316 ［P］. 2003-04-01.

[9] [9] KIM J. Wide-angle projection lens: US, 6999247［P］. 2006-02-14.

[10] [10] NAGAHARA A, YAMAMOTO C. Projection lens and projection display device using the same. US, 7280285［P］. 2007-08-10.

[11] [11] WANG Yi, NI Ying, YU Jing-chi. Computer controlled polishing technology for small aspheric lens ［J］. Optics and Precision Engineering, 2007,15(10):1527-1533.

[12] [12] XUE Dong-lin, ZHANG Zhong-yu, ZHANG Xue-jun. Computer controlled polishing technology for middle or small aspheric lens ［J］. Optics and Precision Engineering, 2005, 13(2):198-204.

[13] [13] XIE Feng, HAO Qun, ZHU Qiu-dong. Best-fit aspheric surface definition based on slope asphericity for aspheric surface ［J］. Acta Optica Sinica, 2010, 30(11):3197-3202.

[14] [14] LIU Hui-lan, SHA Ding-guo, HAO Qun, et al. A method for calculating asphericity of high-order optical aspheric surface ［J］. Opto-Electronic Engineering, 2004, 31(6):44-47.

[15] [15] ZHONG Xing, ZHANG Yuan, JIN Guang. Illumination uniformity optimization of wide-viewing-field optical system ［J］. Acta Optica Sinica, 2012, 32(3): 0322004