A physical account of the Solc birefringent filter is given. The theory of both the Solc and Lyot filters is then developed, assuming imperfections in the polarizers and ignoring birefringence. An anticipated advantage of the Solc filter under these conditions is not confirmed. Formulas for the transmittances of the two filters are derived in a form suitable for tabulation by digital computer.
T. L. VAN RAALTE, "Chain Birefringent Filters," J. Opt. Soc. Am. 57, 1217-1219 (1967)