Method for producing a luminescent pattern from non-overlapping dots, and corresponding luminescent pattern
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Abstract
The method of making a luminescent pattern comprises the steps of:
- subdividing the pattern into an array (2) comprising a plurality of non-overlapping cells (3); on the basis of at least two luminescent materials that emit radiation of different colors when they are excited, and for each cell, determining a dot of luminescent material having dimensions that are no greater than the dimensions of the cell, and having a color that is appropriate for the radiation from adjacent dots in combination to reconstitute a corresponding zone of the pattern; and
- printing the dots (4) as determined in this way in the corresponding cells of the array. The invention also relates to a luminescent pattern comprising a series of non-overlapping luminescent dots of at least two luminescent materials that emit different colors when they are excited, at least some of the dots emitting colors that combine to form at least a third color.
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Citations
18 Claims
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1-9. -9. (canceled)
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10. A method of making a luminescent pattern, the method comprising the steps of:
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subdividing the pattern into an array (2) comprising a plurality of non-overlapping cells (3);
on the basis of at least two luminescent materials that emit radiation of different colors when they are excited, and for each cell, determining a dot of luminescent material having dimensions that are no greater than the dimensions of the cell, and having a color that is appropriate for the radiation from adjacent dots in combination to reconstitute a corresponding zone of the pattern; and
printing the dots (4) as determined in this way in the corresponding cells of the array. - View Dependent Claims (11)
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- 12. A luminescent pattern comprising a series of non-overlapping luminescent dots of at least two luminescent materials emitting different colors when they are excited, wherein at least some of the dots emit colors that combine so as to form at least one third color.
Specification