FIELD: physics.
SUBSTANCE: optical system includes a synthetic image presentation system, which consists of one or more arrangements of the structured image icons, which are substantially in contact with one or more arrangements of focusing elements, but not fully embedded in them. Focusing elements are made in the form of a matrix of microlenses or micromirrors. At the same time, one or more of the focusing element arrangements are focused on one or more image icon arrangements and form at least one synthetic image of at least a portion of the image icons. Furhermore, the interstitial space between the focusing elements in one or more arrangements of the focusing elements does not contribute to the formation of at least one synthetic image, and the image icons intersect the depth of focus of the focusing elements.
EFFECT: reducing the overall thickness of the authentication system applied to the surface.
34 cl, 7 dwg
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|
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| IMAGE REPRODUCTION AND SECURITY MICROOPTICAL SYSTEM | 2004 |
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| PROTECTED LAYER OF LENSES | 2015 |
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| OPTICAL SECURITY DEVICE | 2014 |
|
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