11 patents
Utility
Optical switch devices
2 Jan 24
An optical device includes an array of lenses and a plurality of first and second segments disposed under the array of lenses.
Christopher Chapman Rich, Joel Mikael Petersen, Roger Winston Phillips, John Michael Tamkin
Filed: 2 Sep 21
Utility
Optical structures providing dichroic effects
12 Dec 23
A document, product, or package, such as a banknote, passport or the like comprises structures having dichroic effects that change color with viewing angle in both transmission and reflection.
Roger Winston Phillips, Christopher Chapman Rich, Joel Mikael Petersen
Filed: 26 Aug 21
Utility
Optical switch devices
4 Apr 23
A security device includes an array of lenses and a plurality of first and second segments disposed under the array of lenses.
Christopher Chapman Rich, Joel Mikael Petersen, Roger Winston Phillips, John Michael Tamkin
Filed: 25 Nov 20
Utility
Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products
28 Feb 23
An optical product can reproduce a first 3D image of at least part of a first 3D object and a second 3D image of at least part of a second 3D object.
Christopher Chapman Rich, Joel Mikael Petersen, John Michael Tamkin, Roger Winston Phillips, Phillip Christopher Harvey
Filed: 8 Apr 19
Utility
Animated optical security feature
11 Jan 22
An optical device includes an array of lenses and a plurality of segments disposed under the array of lenses.
Christopher Chapman Rich, Joel Mikael Petersen, Roger Winston Phillips, John Michael Tamkin
Filed: 19 Feb 20
Utility
Optical structures providing dichroic effects
14 Dec 21
A document, product, or package, such as a banknote, passport or the like comprises structures having dichroic effects that change color with viewing angle in both transmission and reflection.
Roger Winston Phillips, Christopher Chapman Rich, Joel Mikael Petersen
Filed: 3 Feb 20
Utility
Optical switch devices
7 Sep 21
An optical device includes an array of lenses and a plurality of first and second segments disposed under the array of lenses.
Christopher Chapman Rich, Joel Mikael Petersen, Roger Winston Phillips, John Michael Tamkin
Filed: 20 Aug 18
Utility
Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products
7 Dec 20
An optical product can be configured to be an anti-counterfeit feature such as a patch, a window, or a thread on a banknote.
Christopher Chapman Rich, Phillip Christopher Harvey, Joel Mikael Petersen
Filed: 22 Oct 15
Utility
Optical switch devices
30 Nov 20
A security device includes an array of lenses and a plurality of first and second segments disposed under the array of lenses.
Christopher Chapman Rich, Joel Mikael Petersen, Roger Winston Phillips, John Michael Tamkin
Filed: 17 Apr 17
Utility
Optical structures providing dichroic effects
16 Nov 20
A document, product, or package, such as a banknote, passport or the like comprises structures having dichroic effects that change color with viewing angle in both transmission and reflection.
Roger Winston Phillips, Christopher Chapman Rich, Joel Mikael Petersen
Filed: 2 Aug 18
Utility
Ultra thin Fresnel lenses and other optical elements
5 Oct 20
Ultra thin Fresnel lenses and methods of forming the same are described herein.
Joel Mikael Petersen, Christopher Chapman Rich
Filed: 19 Jul 17
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