ACHROMATIC OPTICAL DEVICE BASED ON BIREFRINGENT MATERIALS HAVING POSITIVE AND NEGATIVE BIREFRINGENCE DISPERSIONS

摘要

An optical device includes a first layer including a first birefringent material having a negative birefringence dispersion property. The optical device also includes a second layer including a second birefringent material having a positive birefringence dispersion property. The first layer and the second layer are structurally patterned to provide at least one predetermined optical function.