| 摘要 |
The present invention is an optical device having an anisotropic lens array that enables the viewer to perceive a repertoire of preselected images over a first range of angles of regard or to see through the device to a scene beyond the device without distortion. The preselected images in one orientation gives the illusion of a repertoire of images at differing depths. The preselected images at a second orientation can produce a set of optical effects wherein: one image gradually transforms to another; the repertoire of images are unrelated and change suddenly from one to another; the repertoire of images are frames of a motion scene; or, the repertoire of images represent a scene at differing magnifications. Previous attempts at similar objectives have failed to achieve either distortion-free windowing or a reasonably rich repertoire of images. The device may also be applied to applications requiring optical anisotropy such as privacy filtering.
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