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Proceedings Paper

Confocal retinal imaging using a digital light projector with a near infrared VCSEL source
Author(s): Matthew S. Muller; Ann E. Elsner
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Paper Abstract

A custom near infrared VCSEL source has been implemented in a confocal non-mydriatic retinal camera, the Digital Light Ophthalmoscope (DLO). The use of near infrared light improves patient comfort, avoids pupil constriction, penetrates the deeper retina, and does not mask visual stimuli. The DLO performs confocal imaging by synchronizing a sequence of lines displayed with a digital micromirror device to the rolling shutter exposure of a 2D CMOS camera. Real-time software adjustments enable multiply scattered light imaging, which rapidly and cost-effectively emphasizes drusen and other scattering disruptions in the deeper retina. A separate 5.1” LCD display provides customizable visible stimuli for vision experiments with simultaneous near infrared imaging.

Paper Details

Date Published: 22 February 2018
PDF: 9 pages
Proc. SPIE 10546, Emerging Digital Micromirror Device Based Systems and Applications X, 105460G (22 February 2018); doi: 10.1117/12.2290286
Show Author Affiliations
Matthew S. Muller, Aeon Imaging, LLC (United States)
Ann E. Elsner, Aeon Imaging, LLC (United States)
Indiana Univ. (United States)


Published in SPIE Proceedings Vol. 10546:
Emerging Digital Micromirror Device Based Systems and Applications X
Michael R. Douglass; Benjamin L. Lee, Editor(s)

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