High-resolution adaptive optics scanning laser ophthalmoscope with dual deformable mirrors
High-resolution adaptive optics scanning laser ophthalmoscope with dual deformable mirrors
复制标题
DOI：
10.1364/josaa.24.001305
复制
发表时间：
2007-05-01
影响因子：
1.9
通讯作者：
Olivier, Scot S.
中科院分区：
文献类型：
--
作者：
Chen, Diana C.;Jones, Steven M.;Olivier, Scot S.
自适应光学扫描激光检眼镜已用于产生人类视网膜的非侵入性视图。然而，像差补偿的范围受到了可变形镜技术的选择的限制。我们证明，使用双变形镜可以有效补偿人眼的大像差，同时保持视网膜图像的质量。我们通过实验验证，与单独使用微机电系统镜相比，使用双变形镜提高了波前像差校正的动态范围，并且与单独使用双压电晶片镜相比提高了波前校正的质量。我们还证明，大行程双压电晶片变形镜通过提供一种更简单的方法来轴向移动焦点穿过视网膜的不同层，从而提高了共焦成像系统的轴向切片能力。
Adaptive optics scanning laser ophthalmoscopes have been used to produce noninvasive views of the human retina. However, the range of aberration compensation has been limited by the choice of deformable mirror technology. We demonstrate that the use of dual deformable mirrors can effectively compensate large aberrations in the human eye while maintaining the quality of the retinal imagery. We verified experimentally that the use of dual deformable mirrors improved the dynamic range for correction of the wavefront aberrations compared with the use of the micro-electro-mechanical-system mirror alone and improved the quality of the wavefront correction compared with the use of the bimorph mirror alone. We also demonstrated that the large-stroke bimorph deformable mirror improved the capability for axial sectioning with the confocal imaging system by providing an easier way to move the focus axially through different layers of the retina.