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US 7,068,434 B2Granted
Sheeting with composite image that floats
Assignee3M Innovative Properties Company
InventorsJeffrey M. Florczak, Robert T. Krasa, Stephen P. Maki, Richard M. Osgood, III
Life of this patent
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Abstract
Microlens sheetings with composite images are disclosed, in which the composite image floats above or below the sheeting, or both. The composite image may be two-dimensional or three-dimensional. Methods for providing such an imaged sheeting, including by the application of radiation to a radiation sensitive material layer adjacent the microlenses, are also disclosed.
Claims14
A sheeting, comprising:
- at least one layer of microlenses, the layer having first and second sides;
- and
- a layer of material disposed adjacent the first side of the layer of microlenses,
- wherein the material has one or more images formed therein, wherein at least one of the images is a partially complete image, and wherein each image is associated with one of a plurality of microlenses, and
- wherein each microlens has a refractive surface that transmits light to a position of the material to produce, under reflected or transmitted light, a composite image from the images formed within the material that appears to float above the sheeting, float below the sheeting or float in the plane of the sheeting.
2 more elements
Dependencies are inferred from the claim text.