Spectropolarimetric Lenslet Array Multichannel Imager

UAH-P-12012-12013-Spectropolarimetric Lenslet Array Multichannel Imager

Docket: UAH-P-12012, UAH-P-12013


A very thin, lightweight imaging system can be realized by employing a multi-aperture lenslet array to focus light from a scene directly onto a detector plane. However, a typical problem in such an imager is that, if it is exposed to hemispherical illumination without some kind of channel separation layer, the sub-images smear together and become unintelligible.

Researchers at UAH have developed a multichannel thin imager, known as the Spectropolarimetric Lenslet Array Multichannel (SLAM) imager, which eliminates crosstalk so that each sub-image is clearly distinguished. This is accomplished without introduction of an additional separation layer, which must be fabricated and aligned in a way that provides both spectral and polarimetric resolution of the scene.

The SLAM device can be slumped over a spherically-shaped tapered fiber array (also recently developed at UAH) to create a miniature artificial compound eye imager with a field-of-view up to 180 degrees. This device is much like an insect's eye, possesses a very large field-of-view, and uses a conventional planar detector. This represents the first compound eye system that is simple enough to manufacture economically.


  • Micro unmanned vehicles
  • Imaging and sensing system for harsh environments
  • Medical endoscopic
  • Directional communication
  • Range-finding
  • Motion detection


  • Thin/ lightweight
  • Extremely high field-of-view
  • Simple and robust


  • State of Development: Proof of concept
  • Licensing Status: Available for licensing
  • Patent Status: Proprietary