| 液晶空间光调制器对真实人眼畸变波前的校正 |
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| 引用本文： | 姜宝光,穆全全,曹召良,李抄,夏明亮,宣丽.液晶空间光调制器对真实人眼畸变波前的校正[J].光学精密工程,2009,17(11). |
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| 作者姓名： | 姜宝光 穆全全 曹召良 李抄 夏明亮 宣丽 |
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| 作者单位： | 姜宝光,穆全全,李抄,夏明亮(中国科学院,长春光学精密机械与物理研究所,吉林,长春,130033;中国科学院,研究生院,北京,100039);曹召良,宣丽(中国科学院,长春光学精密机械与物理研究所,吉林,长春,130033) |
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| 基金项目： | 国家自然科学基金资助项目，吉林省科学基金资助项目 |
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| 摘 要： | 基于液晶空间光调制器波前调制量大,像素密度高,驱动电压低等优点,用液晶空间光调制器作为校正眼像差的关键元件,研制了用于人眼畸变波前探测和校正的自适应光学系统.介绍了液晶空间光调制器的波前调制原理,利用ZYGO干涉仪测定了位相调制和灰度级的关系曲线.分别用Hartman-Shack波前探测器和高分辨率液晶空间光调制器探测和校正人眼的波前畸变,对近视5 m~(-1) (500度)的人眼进行了自适应校正实验.校正后,系统的波前误差为0.086λ PV和0.013λ RMS, 达到了系统的衍射极限,并可清晰地分辨眼底原来模糊的细胞.实验结果表明,液晶空间光调制器可以有效校正畸变波前,达到提高成像质量的目的.
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| 关 键 词： | 自适应光学 波前探测器 液晶空间光调制器(LCSLM) |
Correction of aberration in eyes by liquid crystal spatial light modulator |
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| JIANG Bao-guang,MU Quan-quan,CAO Zhao-liang,LI Chao,XIA Ming-liang,XUAN Li.Correction of aberration in eyes by liquid crystal spatial light modulator[J].Optics and Precision Engineering,2009,17(11). |
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| Authors: | JIANG Bao-guang MU Quan-quan CAO Zhao-liang LI Chao XIA Ming-liang XUAN Li |
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| Affiliation: | JIANG Bao-guang1,2,MU Quan-quan1,CAO Zhao-liang1,LI Chao1,XIA Ming-liang1,XUAN Li1(1.Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun,Jilin 130033,China,2.Graduate University of Chinese Academy of Sciences,Beijing 100039,China) |
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| Abstract: | By taking the advantages of a Liquid Crystal Spatial Light Modulator(LCSLM) in large stoke, high density and a lower voltage driver, an adaptive optical(AO) system for correcting the aberration of the human eye was developed by using the LCSLM as a key element. The modulation principle of LCSLM was introduced and the relation curve between the phase modulation and the drive voltage was also measured by a ZYGO interferometer. Then, the Shack-Hartmann wavefront sensor and LCSLM were used for aberration detect... |
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| Keywords: | adaptive optics wave-front detector Liquid Crystal Spatial Light Modulator (LCSLM) |
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