| 头盔显示器自由曲面光学组件的优化设计 |
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| 引用本文： | 张博,王凌,常伟军,陈姣,焦明印.头盔显示器自由曲面光学组件的优化设计[J].应用光学,2014,35(2):193-197. |
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| 作者姓名： | 张博 王凌 常伟军 陈姣 焦明印 |
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| 作者单位： | 西安应用光学研究所, 陕西 西安710065 |
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| 摘 要： | 根据设计要求计算了非共轴球面光学系统的初始结构，选定泽尼克多项式为自由曲面面型，利用正交泽尼克多项式与像差的关系，调整曲面参数校正系统的像差，运用CODE V进行系统优化。通过设计实例对比了直接优化和分步优化方法，由对比结果可知，分步优化更适用于自由曲面光学组件的设计。仿真结果表明：系统在整个视场范围内，点列斑直径小于27 μm，网格畸变的最大值为-7.15%，30 lp/mm处的MTF大于0.197。
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| 关 键 词： | 光学设计 自由曲面组件 泽尼克多项式 优化 |
| 收稿时间： | 2013/8/31 |
Optimal design of free-form-surface optical component in helmet mounted display |
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| ZHANG Bo,WANG Ling,CHANG Wei-jun,CHEN Jiao,JIAO Ming-yin.Optimal design of free-form-surface optical component in helmet mounted display[J].Journal of Applied Optics,2014,35(2):193-197. |
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| Authors: | ZHANG Bo WANG Ling CHANG Wei-jun CHEN Jiao JIAO Ming-yin |
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| Affiliation: | Xi-an Institute of Applied Optics，Xi-an 710065，China |
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| Abstract: | According to the requirement of system, the incipient structure of the off-axis optical system without freeform surface was computed. Choosing the Zernike polynomials surface as freeform surface, using the relationship of aberration and the Zernike polynomials, the aberration of surface parameters correction system was adjust, and the system was optimized by using CODE V. The different examples of direct optimization method and step-by-step optimization method were compared, and result shows the step by step optimization method is more suitable for the system design. Simulation results show that in the entire field of view, the diameter root mean square(RMS) of spot diagram dispersion circle is less than 27 μm, MTF value at 30 lp/mm is more than 0.197 and the maximum grid distortion is -7.15%. |
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| Keywords: | optical design free-form-surface component Zernike polynomials optimization |
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