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06.11.2018
Materials – Coating 07293-01
06.11.2018
Materials – Coating 10581-01
06.11.2018
Chemistry / Environment 08758-01
06.11.2018
11127-01
06.11.2018
Environment and Energy 11107-01
19.10.2018
Medical Diagnostic 08504-01
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03829-01
infra red, IR glass, IR vitroceramic, chalcogenide, active optical component, passive optical component, thermal imaging
Priority patent application FR1060133 filed on December 6th, 2010 and entitled “Procédé d’obtention d’un matériau vitreux et optiquement transparent dans l’infrarouge, et dispositif optique comprenant un tel matériau”
Laurent CALVEZ
Xiang HUA ZHANG
Mathieu HUBERT
Collaborative research
Laboratoire Verres et ceramiques, UMR6226, Rennes, France,
http://www.scienceschimiques.univ-rennes1.fr/equipes/verres-et-ceramiques/
IR transmission materials are generally produced by mixing the elements in a sealed quartz tube and heating the tube up to the fusion temperature of said elements.
The invention concerns a process to produce vitrous IR transmitting materials like glass or vitro ceramic which composition is based on chalcogenides. Elemental powders are mixed according to final composition desired, milled, pressed and then heat treated.
Smaller energy consumption, very large composition panel even material which were not possible due to vaporization in standard process become possible, easy to handle, no size limitations.
Applications are numerous and thanks to the elimination of standard production methods should still grow. On can cite thermal imaging (passive optical components) for cameras or sensors or active optical components using emission or non linearity properties like IR lasers, optical commutation device or optical amplification.
For further information, please contact us (Ref 03829-01)
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