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Proceedings Paper

Multiwavelength adaptive optical fundus camera and continuous retinal imaging
Author(s): Han-sheng Yang; Min Li; Yun Dai; Yu-dong Zhang
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Paper Abstract

We have constructed a new version of retinal imaging system with chromatic aberration concerned and the correlated optical design presented in this article is based on the adaptive optics fundus camera modality. In our system, three typical wavelengths of 550nm, 650nm and 480nm were selected. Longitude chromatic aberration (LCA) was traded off to a minimum using ZEMAX program. The whole setup was actually evaluated on human subjects and retinal imaging was performed at continuous frame rates up to 20 Hz. Raw videos at parafovea locations were collected, and cone mosaics as well as retinal vasculature were clearly observed in one single clip. In addition, comparisons under different illumination conditions were also made to confirm our design. Image contrast and the Strehl ratio were effectively increased after dynamic correction of high order aberrations. This system is expected to bring new applications in functional imaging of human retina.

Paper Details

Date Published: 29 October 2009
PDF: 11 pages
Proc. SPIE 7519, Eighth International Conference on Photonics and Imaging in Biology and Medicine (PIBM 2009), 751910 (29 October 2009); doi: 10.1117/12.846076
Show Author Affiliations
Han-sheng Yang, The Key Lab. on Adaptive Optics (China)
Institute of Optics and Electronics (China)
Graduate School of the Chinese Academy of Sciences (China)
Min Li, The Key Lab. on Adaptive Optics (China)
Institute of Optics and Electronics (China)
Yun Dai, The Key Lab. on Adaptive Optics (China)
Institute of Optics and Electronics (China)
Yu-dong Zhang, The Key Lab. on Adaptive Optics (China)
Institute of Optics and Electronics (China)


Published in SPIE Proceedings Vol. 7519:
Eighth International Conference on Photonics and Imaging in Biology and Medicine (PIBM 2009)
Qingming Luo; Lihong V. Wang; Valery V. Tuchin; Pengcheng Li; Ling Fu, Editor(s)

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