A combination patterned reflective dichroic filter and optical coating,
and method of making the same, is disclosed by starting with a filter
substrate, laying down a pattern of dichroic filter material, but
stopping short of completing the layers required for the spectral
characteristics of the filter. The spectral characteristics are completed
by adding a blanket coating of a material such as an anti-reflective
material. In an alternative embodiment the blanket coating can be applied
prior to addition of the dichroic filter material.