Extra-thin infrared camera for low-cost surveillance applications

Tatiana Grulois 1, * Guillaume Druart 1 Nicolas Guérineau 1 Arnaud Crastes 2 Hervé Sauer 3 Pierre Chavel 3
* Auteur correspondant
1 ONERA-DOTA
Palaiseau - ONERA - The French Aerospace Lab
3 Laboratoire Charles Fabry / Spim
LCF - Laboratoire Charles Fabry
Abstract : We designed a cheap broadband uncooled microimager operating in the long-wavelength infrared range using only one lens at a minimal cost for the manufacturing process. The approach is based on thin optics where the device volume is small and therefore inexpensive materials can be used because some absorption can be tolerated. We have used a Fresnel lens on a thin silicon substrate. Up to now, Fresnel lenses have not been used for broadband imaging because of their chromatic properties. However, working in a relatively high diffraction order can significantly reduce chromatism. A prototype has been made for short range or indoor low-cost surveillance applications like people counting, and experimental images are presented.
Type de document :
Article dans une revue
Optics Letters, Optical Society of America, 2014, 39 (11), pp.3169-3172. 〈10.1364/OL.39.003169〉
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Contributeur : Hervé Sauer <>
Soumis le : jeudi 4 septembre 2014 - 00:19:16
Dernière modification le : jeudi 11 janvier 2018 - 06:27:15

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Tatiana Grulois, Guillaume Druart, Nicolas Guérineau, Arnaud Crastes, Hervé Sauer, et al.. Extra-thin infrared camera for low-cost surveillance applications. Optics Letters, Optical Society of America, 2014, 39 (11), pp.3169-3172. 〈10.1364/OL.39.003169〉. 〈hal-01060572〉

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