Abstract: An eyewear article for performing viewing functions is provided. The viewing functions supported include viewing different types of 3D displays, emulating the Pulfrich effect, and viewing a loaded 3D image sequence. The article comprises a left-eye module and a right-eye module, each realized as an optical module comprising one or more liquid crystal layers and one or more linear polarizers. In particular, the number of the one or more linear polarizers is equal to the number of the one or more liquid crystal layers. Optionally, the optical module further includes a matrix-electrode layer on one liquid crystal layer. The matrix-electrode layer is used to form liquid crystal cells, each independently addressable, in the liquid crystal layer. The optical module may further include a multi-color filtering layer. In one option, the light beam passing through the optical module is further processed by a Fresnel lens having a reconfigurable focal length.

Abstract: This invention discloses optical modules, and eyewear using them for performing viewing function(s) including viewing a shutter-based 3D display, viewing a polarization-based 3D display, emulating the Pulfrich effect, emulating a pair of pinhole glasses and emulating a pair of sunglasses.