Research On A Novel Optical Imaging System Of Bionic Human Eye

80 percent of the communication interaction between human and the outside is completed by the human eyes.Designing the humanoid eye can provide new ideas for the bionic vision technology.And the designed eye model can be served as an adjustable and intuitive model for the clinical teaching of ophthalmology and preoperative instructions.Based on the structural features and optical characteristics of the cornea and crystalline lens,the optical model of cornea and optical model of the crystalline lens are built with the technology of three-layer liquid lens.The properties of the above mentioned models are obtained by the theoretical model research.The main work is as following:1.The research background,purpose and meaning of the bionic human eyes are introduced,especially the current situation of the bionic human eyes research and zoom system research are included.The physical structure and optical property of human eyes are presented,the relevant theoretical equations of the electrowetting are deduce.2.Two different three-layer liquid lens models,with the different selection of the insulation liquids,are designed according to the structural features and optical characteristics of the cornea and crystalline lens.The changes in the surface of the three-layer liquid lens under the influence of different voltage with COMSOL are analyzed,and the impact of the different voltage on another side interface surface is discussed.3.The liquid interface surfaces are fitted with the even aspheric polynomials.And the fitting error is between ten thousandth and hundred thousandth.4.Based on the optical model of cornea and optical model of the crystalline lens,with the optical design software Zemax,the human eye liquid model containing the above two models is obtained.Moreover,the model of human eye with different refraction can be gained by analyzing the imaging features of the system.