PMID: 18195795Feb 1, 1983Paper

Correction of chromatic aberrations in GRIN endoscopes

Applied Optics
D C Leiner, R Prescott

Abstract

A gradient-index (GRIN) endoscope can be constructed by substituting for the usual objective and relay sections suitable cylindrical index-distribution rod lenses. Currently available GRIN lenses exhibit large amounts of chromatic aberration. Axial color arises mostly from the relay lens, while lateral color is due to the objective lens. A negative lens cemented to a shortened GRIN relay lens can simultaneously correct axial and lateral chromatic aberrations with commercially available components. This correction system reduces the requirements for mechanical centration better than do color correctors that are incorporated into the ocular design. Monochromatic aberrations are also considered.

Citations

Dec 12, 2012·Journal of Biomedical Optics·Noah Bedard, Tomasz S Tkaczyk
Jun 21, 2003·Optics Letters·Juergen C Jung, Mark J Schnitzer
Jan 25, 2011·Biomedical Optics Express·Youbo ZhaoRobert J Gordon
Apr 27, 2019·Frontiers in Cellular Neuroscience·Daniel Aharoni, Tycho M Hoogland
Feb 16, 2013·Biomedical Optics Express·Matthew Kyrish, Tomasz S Tkaczyk

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