Skinny lens makes cheap surveillance camera for home use

Dark alleys might not feel so dangerous someday thanks to a new ultra-thin type of lens, which could pave the way to making smaller and cheaper heat-sensing imagers. A team of French researchers has found a way to make a thermal infrared (IR) camera with a lens made of silicon, a much less expensive material than is commonly used today.

from Phys.org – spotlight science and technology news stories http://ift.tt/1pcV2vg
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