[1] Yao W Y,Cheng H Q,Zhu F M,et al. Opto-Electronic Engineering,2001,28(1):32～35

[2] Zhu F M,Yang G G,Yao W Y,et al. Acta Photonica Sinica,2001,30(9):1111～1114

[3] Greguss P. The tube peeper: a new concept in endoscopy.Opt Laser Techn,1985,17(1):41～45

[4] Gilbert J,Fair S,Caldwell S,Gronner S,et al. A hemispherical imaging and tracking (HIT) system.AIAA SDIO Annual Interceptor Technology Conference,Huntsville,AL,May 1992.19～21