An infrared imaging device including a filter array (110) comprising: (i) a plurality of spaced filter elements (116)； (ii) a reflective coating (114), wherein the reflective coating is disposed on the filter array between each of the plurality of spaced filter elements； and (iii) a plurality of lenses (112), wherein each one of the plurality of lenses is aligned with a respective one of the plurality of spaced filter elements and is configured to focus electromagnetic radiation into a beam； and an imaging sensor array (120) spaced by a first distance from the filter array and comprising a plurality of pixel elements (122), wherein each of the plurality of pixel elements is aligned with a focused beam from a respective one of the plurality of spaced filter elements.
