| 摘要 |
An optical device (10) for providing a synthetic integral image includes a polymer foil stack (111). The polymer foil stack (111) includes at least one polymer foil (11). A first interface (17) of the polymer foil stack (111) includes optically distinguishable image data bearer structures (116). The first interface (17) has a general shape defined by a first array (115) of curved interface portions (117), on which the image data bearer structures (116) are superimposed. Preferably, the optical device (10) includes a second interface (12) of the polymer foil stack (111), which has a second array (13) of microlenses (14). The second interface (12) is provided at a distance from the first interface (17), which distance is close to a focal length of the microlenses (14). The second array (13) is in registry with the first array (115).
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