• Chinese Optics Letters
  • Vol. 15, Issue 12, 121102 (2017)
Yuanyuan Wang1、2、3、4, Yi He1、2、*, Ling Wei1、2, Xiqi Li1、2, Jinsheng Yang1、2, Hong Zhou1、2, and Yudong Zhang1、2
Author Affiliations
  • 1The Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu 610209, China
  • 2University of Chinese Academy of Sciences, Beijing 100039, China
  • 3School of Ophthalmology & Optometry and Eye Hospital, Wenzhou 325035, China
  • 4Wenzhou Medical University, Wenzhou 325035, China
  • show less
    DOI: 10.3788/COL201715.121102 Cite this Article Set citation alerts
    Yuanyuan Wang, Yi He, Ling Wei, Xiqi Li, Jinsheng Yang, Hong Zhou, Yudong Zhang. Bimorph deformable mirror based adaptive optics scanning laser ophthalmoscope for retina imaging in vivo[J]. Chinese Optics Letters, 2017, 15(12): 121102 Copy Citation Text show less
    Schematic of AOSLO system. SM1–SM8: spherical mirrors, FM: flat mirror, CL: collecting lens, PH: confocal pinhole, HS: horizontal scanner, VS: vertical scanner, RC: reflecting collimator. AP: aperture.
    Fig. 1. Schematic of AOSLO system. SM1–SM8: spherical mirrors, FM: flat mirror, CL: collecting lens, PH: confocal pinhole, HS: horizontal scanner, VS: vertical scanner, RC: reflecting collimator. AP: aperture.
    (a) 35-actuator bimorph DM, (b) distribution of 1–35 discrete electrodes. The radius of electrode 1 is 2 mm; the outer radius is 6, 10, and 14 mm for the second, third and fourth ring, respectively. There are 0.8 and 1 mm wide gaps for the angle and radial direction, respectively.
    Fig. 2. (a) 35-actuator bimorph DM, (b) distribution of 1–35 discrete electrodes. The radius of electrode 1 is 2 mm; the outer radius is 6, 10, and 14 mm for the second, third and fourth ring, respectively. There are 0.8 and 1 mm wide gaps for the angle and radial direction, respectively.
    Initial flatness of the DM (a) without correction and (b) with self-correction.
    Fig. 3. Initial flatness of the DM (a) without correction and (b) with self-correction.
    Peak valley values as the measured influence function of the applied voltages. The solid points correspond to the obtained mirror deformation, while the dashed lines are the corresponding fits performed over each set of data.
    Fig. 4. Peak valley values as the measured influence function of the applied voltages. The solid points correspond to the obtained mirror deformation, while the dashed lines are the corresponding fits performed over each set of data.
    Color-coded aberration maps. Top row: initial aberrations from 4 real eyes. Bottom row: best corrected wavefront aberrations estimated by the HSWS.
    Fig. 5. Color-coded aberration maps. Top row: initial aberrations from 4 real eyes. Bottom row: best corrected wavefront aberrations estimated by the HSWS.
    (Color online) Zernike coefficients of the human eye without AO correction in the green color, and with AO correction in the red color.
    Fig. 6. (Color online) Zernike coefficients of the human eye without AO correction in the green color, and with AO correction in the red color.
    (Color online) Single frame (a) without AO correction, (b) without AO correction but after the best correction of the defocus and astigmatism aberrations, (c) with AO correction. The images are 512×449 pixels, and the field of view subtends 2°, or approximately 580 μm on one side. The image was taken from a retina location about 4.5° from the fovea center. The scale bar is 50 μm.
    Fig. 7. (Color online) Single frame (a) without AO correction, (b) without AO correction but after the best correction of the defocus and astigmatism aberrations, (c) with AO correction. The images are 512×449 pixels, and the field of view subtends 2°, or approximately 580 μm on one side. The image was taken from a retina location about 4.5° from the fovea center. The scale bar is 50 μm.
    Yuanyuan Wang, Yi He, Ling Wei, Xiqi Li, Jinsheng Yang, Hong Zhou, Yudong Zhang. Bimorph deformable mirror based adaptive optics scanning laser ophthalmoscope for retina imaging in vivo[J]. Chinese Optics Letters, 2017, 15(12): 121102
    Download Citation