A polarizer assembly including first and second components having respective first and second channel portions. The first and second components are configured to flex between a pre-fastened state and a fastened state. In the pre-fastened state, a first flange face of a flange of the first component contacts an opposite facing second flange face of a flange of the second component at contact regions along respective edges of the first and second channel portions to form a nonuniform thickness gap between the first and second flange faces outwardly from the contact regions toward outer edges of the first and second components. In the fastened state, the first flange face is engaged flush with the second flange face to close the nonuniform thickness gap.