An infrared filter that is formed as {HEAD ~ a laminated structure} including {TAIL ~ a plurality} of layers having substantially uniform thicknesses 
including
An infrared filter that is formed as { HEAD ~ a laminated structure } including { TAIL ~ a plurality } of layers having substantially uniform thicknesses
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH