US Patent 8,616,702
United States Patent and Trademark Office
University of Iowa Research Foundation (Iowa City, IA, US)
Provided is a hybrid laser ophthalmoscope comprising a laser light source, a LED light source, and a holographic diffuser, wherein the holographic diffuser is configured to shape a beam of light into a Maxwellian ring.
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Abràmoff, Michael Hybrid laser ophthalmoscope. US Patent 8,616,702 filed February 25, 2010 and issued December 31, 2013. https://ir.uiowa.edu/patents/607