A design approach is discussed for color separation in an hypothetical three color TV camera with specified colorimetry characteristics. Some possible optical layouts to achieve this separation are presented together with their relative advantages and disadvantages. The types of multilayer interference filter designs which would be used in a system of this type are presented and the ways in which filter characteristics may be changed are discussed. A graphical presentation is made of the polarization effects and color shifts associated with different types of optical separation systems and with different f-numbers. Consideration is given to some of the subtleties which must be taken into account in an actual system which are not covered in this simplified model.
Richard I. Seddon,
"Interference Filters For Colorimetric Applications", Proc. SPIE 0050, Optical Coatings: Applications and Utilization I, (1 March 1974); doi: 10.1117/12.954111; https://doi.org/10.1117/12.954111