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Hyperspectral sensors flaunt extended near infrared range

Posted: 19 Feb 2016 ?? ?Print Version ?Bookmark and Share

Keywords:Imec? hyperspectral sensor? VNIR? CMOS? remote sensing?

During the recently concluded SPIE Photonics West, Imec revealed a set of hyperspectral sensor and camera solutions with extended spectral range, going from the visible light (VIS) up to near infrared (NIR). The line-scan VNIR (visible to near-infrared) sensor and snapshot mosaic VNIR camera outpace existing solutions in spectral range and compactness.

Example applications for the line-scan sensor are machine vision and remote sensing applications, e.g. precision agriculture using UAVs and satellites. It features 140+bands in the 470nm to 900nm range. Its small form factor is the result of extreme integration of the hyperspectral filter onto the CMOS sensor.

"Leveraging our learnings from previous versions of our line-scan hyperspectral sensor, we developed a new process that enabled us to deposit spectral filter banks in both the visible and near infra-red range on the same CMOS sensor. This achievement extends our sensing solutions within medical, precision agriculture, remote sensing and industrial applications," said Andy Lambrechts, programme manager integrated vision solutions at Imec.

Hyperspectral sensor and camera solution

Figure 1: Imec showcased a set of hyperspectral sensor and camera solutions with extended spectral range, going from the visible light up to near infrared, featuring 140+bands in the 470nm to 900nm range.

The 450nm to 875nm snapshot dual-sensor camera targets applications where dynamic effects are imaged: especially medical, machine vision and security surveillance. By integrating, within one single unified dual-sensor camera architecture, a 16-bands 4x4 mosaic sensor covering the 450nm to 600nm range together with a 25-bands 5x5 mosaic sensor covering the 600nm to 875nm range, Imec realised a solution that covers a broad spectral range from visible to near-infrared while maintaining high spatial and spectral resolution trade-offs.

The line-scan VNIR sensor and snapshot mosaic VNIR camera will be available for early sampling to strategic partners from April 2016.





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