【摘要】：為了解決傳統(tǒng)自適應(yīng)光學(xué)系統(tǒng)校正視場小的問題,提出了一種層析自適應(yīng)光學(xué)眼底成像系統(tǒng)。以Zemax為工具,Liou-Brennan(LB)眼模型為仿真對象,研究了層析自適應(yīng)光學(xué)眼底成像系統(tǒng)的性能。分析了20°視場內(nèi)的眼底像差特性,用Zernike邊緣多項式描述眼底像差,獲得了不同視場內(nèi)眼底像差的類型和大小。對比了傳統(tǒng)自適應(yīng)光學(xué)和層析自適應(yīng)光學(xué)眼底成像系統(tǒng)的性能。結(jié)果表明,相較于傳統(tǒng)自適應(yīng)光學(xué),層析自適應(yīng)光學(xué)系統(tǒng)可將校正視場從1.2°擴(kuò)大至3°。確定了傳統(tǒng)自適應(yīng)光學(xué)和層析自適應(yīng)光學(xué)眼底成像系統(tǒng)中變形鏡的最佳共軛位置,均位于出瞳面前3mm,此位置與人眼角膜共軛。
[Abstract]:In order to solve the problem of small field of view correction in traditional adaptive optics system, a tomography adaptive optical fundus imaging system is proposed. Using Zemax as tool and Liou-Brennan (LB) eye model as simulation object, the performance of tomography adaptive optical fundus imaging system is studied. The characteristics of fundus aberration in 20 擄field of view are analyzed. The Zernike edge polynomial is used to describe the fundus aberration, and the types and sizes of the aberration in different field of view are obtained. The performances of conventional adaptive optics and tomography adaptive optical fundus imaging systems are compared. The results show that compared with traditional adaptive optics, the corrected field of view can be expanded from 1.2 擄to 3 擄by the tomography adaptive optical system. The optimal conjugate position of deformable lens in conventional adaptive optics and tomography adaptive optical fundus imaging systems is determined, which is located at 3mm in front of the pupil, which is conjugated with the cornea of human eyes.
【作者單位】： 北京理工大學(xué)光電學(xué)院自適應(yīng)光學(xué)實驗室;北京理工大學(xué)光電學(xué)院光電技術(shù)與信息系統(tǒng)實驗室;
【基金】：國家自然科學(xué)基金(61471039)
【分類號】：O439
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本文編號：2269937