• Acta Photonica Sinica
  • Vol. 39, Issue 5, 855 (2010)
WANG Yao*, WANG Zhao-qi, and ZHANG Mei
Author Affiliations
  • [in Chinese]
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    DOI: Cite this Article
    WANG Yao, WANG Zhao-qi, ZHANG Mei. Design of a Portable FFA Camera Based on the Eye Model[J]. Acta Photonica Sinica, 2010, 39(5): 855 Copy Citation Text show less

    Abstract

    A portable fundus fluorescein angiography(FFA)camera is designed based on Gullstrand-Le Grand eye model.Nikon filter combination of B-2A is used as filter system in this design.And after the comprehensive consideration of both the optical system of human eye and the camera,a high definition image with 2 mega pixels in its full field of view is realized.Meanwhile,the coaxial illumination system is designed with an annular stop,in order that the eyeground is uniformly illuminated.It is shown that this camera has strong abilities for accommodation,which could adapt the different eyes from -10D to +8D.The field of view of this camera is 30°,the resolution of the image surface is 120 lp/mm,and the value of the negative distortion is less than 5.3%.
    WANG Yao, WANG Zhao-qi, ZHANG Mei. Design of a Portable FFA Camera Based on the Eye Model[J]. Acta Photonica Sinica, 2010, 39(5): 855
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