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Chalcogenide based cheap vitreous composition and production process

Reference

03829-01

Patents status

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”

Inventors

Laurent CALVEZ
Xiang HUA ZHANG
Mathieu HUBERT

commercial status

Collaborative research

Laboratory

Laboratoire Verres et ceramiques, UMR6226, Rennes, France,
http://www.scienceschimiques.univ-rennes1.fr/equipes/verres-et-ceramiques/

Description

CONTEXT

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.

TECHNICAL DESCRIPTION

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.

BENEFITS

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.

INDUSTRIAL APPLICATIONS

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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