The filter 11, wherein a refractive index of the plurality of pattern units is 0.3 1 times {HEAD ~ a refractive index} of {TAIL ~ the base unit} 
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The filter 11 , wherein a refractive index of the plurality of pattern units is 0.3 1 times { HEAD ~ a refractive index } of { TAIL ~ the base unit }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL