4 June 2001 Infrared imaging bundles with good image resolution
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Proceedings Volume 4253, Optical Fibers and Sensors for Medical Applications; (2001) https://doi.org/10.1117/12.427925
Event: BiOS 2001 The International Symposium on Biomedical Optics, 2001, San Jose, CA, United States
Amorphous Materials has developed a chalcogenide glass which can be drawn in unclad fibers continuously with diameters as low as 50 micrometers . The glass, designed C4, was used to form bundles using the stacked ribbon method. The bundles, 1 meter long and containing 4 - 5 thousand fibers, fitted with relay and objective lenses, produced images using the 3 - 5 micrometers Agema 210 camera far superior than observed at Amorphous Materials with previous bundles. Resolution and contrast were markedly improved. Further improvement was observed when a bundle was used with a much more sensitive Raytheon Radiance it 3 - 5 micrometers camera. FTIR scans showed the transmission was low in the 8 - 12 micrometers range. Images obtained using a Raytheon Palm IR were faint with low contrast. Antireflection coating on the bundles improved 3 - 5 micrometers transmission but failed to improve the 8 - 12 micrometers performance sufficiently.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Albert Ray Hilton, Albert Ray Hilton, } "Infrared imaging bundles with good image resolution", Proc. SPIE 4253, Optical Fibers and Sensors for Medical Applications, (4 June 2001); doi: 10.1117/12.427925; https://doi.org/10.1117/12.427925


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