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Spectroscopic Measurements of Oxygen Saturation in the Retina

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2 Author(s)
Ramella-Roman, J.C. ; Catholic Univ. of America, Washington ; Mathews, S.A.

We introduce a new type of retinal oximeter able to capture multiple spectroscopic sensitive images of the retina in a single snapshot. The core of our apparatus is a multiaperture camera that can be easily interfaced with a fundus camera system. A lenslet array divides the image collected by a fundus camera into identical subimages. A bandpass filter array in front of the lens system is used to collect the subimages only at the wavelengths of interest. Two different instruments were designed based on this simple principle. The first system can collect six different images, while the second system can collect up to 18 different images in a single snapshot.

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Selected Topics in Quantum Electronics, IEEE Journal of  (Volume:13 ,  Issue: 6 )