Polarizing filter and polarimetric image sensor integrating such a filter
AssigneeCommissariat à I'Énergie Atomique et aux Énergies Alternatives
InventorFrançois Deneuville
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Abstract
A polarizing filter intended to be arranged in front of an image sensor including a plurality of pixels, the filter including, for each pixel, a polarizing structure including a plurality of parallel metal bars, each bar being coated with an absorbing stack including: —a tungsten layer; —a silicon layer, coating the tungsten layer; and —a dielectric layer, coating the silicon layer.
Claims19
Polarizing filter intended to be arranged in front of an image sensor comprising a plurality of pixels, the filter comprising, for each pixel, a polarizing structure comprising a plurality of parallel metal bars, each bar being coated with an absorbing stack comprising:
- a tungsten layer;
- a silicon layer, coating the tungsten layer;
- and
- a dielectric layer, coating the silicon layer.
Dependencies are inferred from the claim text.