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公开(公告)号：US10061065B2
公开(公告)日：2018-08-28
申请号：US14546317
申请日：2014-11-18
Applicant: Viavi Solutions Inc.
Inventor： Cornelis Jan Delst , Matthew R. Witzman , Paul T. Kohlmann , Charles T. Markantes
CPC classification number: G02B5/288 , B29C70/585 , C01P2006/62 , C09C1/0015 , C09C2200/1054 , C09C2200/24 , C09C2220/20 , C09D5/36 , G02B5/22 , G02B5/284 , G02B5/285 , G02B5/286 , G02B27/0012
Abstract: A method of providing a configuration of a system of interference filters with a visible color shifting effect, includes: a hue matching step of identifying a configuration of a first interference filter including two first metal layers and a first spacer layer therebetween, and a configuration of a second interference filter including two second metal layers and a second spacer layer therebetween, wherein the first and second filters match in hue at the first viewing angle, and the mismatch in hue at the second angle; and a lightness adjustment step which may include modifying the layer material or the layer thickness of one of the metal layers; wherein a difference in lightness at the first viewing angle between the first and second modified filters is less that a difference in lightness at the first viewing angle between the first and second filters.
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公开(公告)号：US12103327B2
公开(公告)日：2024-10-01
申请号：US17819387
申请日：2022-08-12
Applicant: VIAVI Solutions Inc.
Inventor： Matthew R. Witzman
IPC: B42D25/369 , B05D3/00 , B42D25/40
CPC classification number: B42D25/369 , B05D3/207 , B42D25/40
Abstract: A deposition device may deposit, on a substrate, a binder layer that includes a first set of magnetic flakes and a second set of magnetic flakes and may cause, when a temperature of the binder layer satisfies a temperature threshold (e.g., a Curie temperature of the first set of magnetic flakes), a magnetic field to be applied to the binder layer to cause the first set of magnetic flakes and the second set of magnetic flakes to be oriented according to the magnetic field. The deposition device may cause, when the temperature of the binder layer ceases to satisfy the temperature threshold, another magnetic field to be applied to the binder layer to cause only the second set of magnetic flakes to be oriented according to the other magnetic field.
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公开(公告)号：US11427026B1
公开(公告)日：2022-08-30
申请号：US17210171
申请日：2021-03-23
Applicant: VIAVI Solutions Inc.
Inventor： Matthew R. Witzman
IPC: B42D25/369 , B05D3/00 , B42D25/40
Abstract: A deposition device may deposit, on a substrate, a binder layer that includes a first set of magnetic flakes and a second set of magnetic flakes and may cause, when a temperature of the binder layer satisfies a temperature threshold (e.g., a Curie temperature of the first set of magnetic flakes), a magnetic field to be applied to the binder layer to cause the first set of magnetic flakes and the second set of magnetic flakes to be oriented according to the magnetic field. The deposition device may cause, when the temperature of the binder layer ceases to satisfy the temperature threshold, another magnetic field to be applied to the binder layer to cause only the second set of magnetic flakes to be oriented according to the other magnetic field.
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公开(公告)号：US11079525B2
公开(公告)日：2021-08-03
申请号：US16113969
申请日：2018-08-27
Applicant: VIAVI Solutions Inc.
Inventor： Cornelis Jan Delst , Matthew R. Witzman , Paul T. Kohlmann , Charles T. Markantes
Abstract: A method of providing a configuration of a system of interference filters with a visible color shifting effect, includes: a hue matching step of identifying a configuration of a first interference filter including two first metal layers and a first spacer layer therebetween, and a configuration of a second interference filter including two second metal layers and a second spacer layer therebetween, wherein the first and second filters match in hue at the first viewing angle, and the mismatch in hue at the second angle; and a lightness adjustment step which may include modifying the layer material or the layer thickness of one of the metal layers; wherein a difference in lightness at the first viewing angle between the first and second modified filters is less that a difference in lightness at the first viewing angle between the first and second filters.
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