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US 12,692,397 B2Granted
Composition including dual cavity color shifting pigments
AssigneeViavi Solutions Inc.
InventorsMatthew Ryan Witzman, Bryan James Clifton, Cornelis Jan Delst
Life of this patent
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Abstract
A composition including a dual cavity color shirting pigment and a single cavity color shifting pigment is disclosed. A method of making the composition is also disclosed.
Claims13
A composition comprising a dual cavity color shifting pigment;
- and a single cavity color shifting pigment blended with the dual cavity color shifting pigment;
- wherein the dual cavity color shifting pigment includes a first core having a first side and a second side, a first dielectric layer, a first absorber layer, and a second dielectric layer, the first absorber layer being between the first dielectric layer and the second dielectric layer, the first dielectric layer, the first absorber layer and the second dielectric layer being only on the first side of the core;
- wherein the single cavity color shifting pigment or the dual cavity color shifting pigment includes a high refractive index material as an external layer, and further wherein the external layer is not an absorber layer;
- wherein the single cavity color shifting pigment includes a second core having a first side and a second side and a third dielectric layer only on the first side of the second core;
- and
- wherein the first core includes a first magnetic layer and the second core includes a second magnetic layer.
3 more elements
A composition comprising a dual cavity color shifting pigment;
- and a single cavity color shifting pigment;
- wherein the dual cavity color shifting pigment includes a core having a first side and a second side, a first dielectric layer, a first absorber layer, a second dielectric layer and a second absorber layer, the first absorber layer being between the first dielectric layer and the second dielectric layer, the first dielectric layer, the first absorber, the second dielectric layer and the second absorber layer being only on the first side of the core;
- wherein the single cavity color shifting pigment includes a second core having a first side and a second side, a third dielectric layer and a third absorber layer, the third dielectric layer and the third absorber layer being only on the first side of the second core;
- and
- wherein the composition results in a red face color, the dual cavity color shifting pigment having a hue angle more towards orange relative to the red face color and the single cavity color shifting pigment having a hue angle more towards magenta relative to the red face color, as measured in L*a*b* color space.
2 more elements
A composition comprising a dual cavity color shifting pigment;
- and a single cavity color shifting pigment;
- wherein the dual cavity color shifting pigment includes the following structure:
- a Chromium absorber having a thickness of 3.7 nm/a magnesium fluoride dielectric having a thickness of 220 nm/a Chromium absorber having a thickness of 8.3 nm/a magnesium fluoride dielectric having a thickness of 220 nm/an aluminum reflector layer/a magnetic layer/an aluminum reflector layer/a magnesium fluoride dielectric having a thickness of 220 nm/a Chromium absorber having a thickness of 8.3 nm/Dielectric-magnesium fluoride (220 nm)/a Chromium absorber having a thickness of 3.7 nm;
- and
- wherein the single cavity color shifting pigment includes the following structure:
- a Chromium absorber having a thickness of 6.0 nm/a magnesium fluoride dielectric having a thickness of 440 nm/an aluminum reflector layer/a magnetic layer/an aluminum reflector layer/a magnesium fluoride dielectric having a thickness of 440 nm/a Chromium absorber having a thickness of 6.0 nm.
3 more elements
Dependencies are inferred from the claim text.