Reflective polarizer and optical construction

Abstract

A reflective polarizer includes a plurality of alternating first and second layers substantially reflecting a first polarization state and substantially transmitting a second polarization state, such that for at least a first location, a minimum in a visible wavelength range of an absolute value of a difference in refractive indices of the first and second layers along the second polarization state occurs at a first wavelength of no more than 450 nm. An optical construction includes the reflective polarizer disposed on an optical lens. For a second location of the reflective polarizer on the optical lens, a minimum in the visible wavelength range of an absolute value of a difference in refractive indices of the first and second layers along the second polarization state occurs at a second wavelength at least about 10 nm greater than the first wavelength.

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