Patents by Inventor Richard A. Bradley
Richard A. Bradley has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12366692Abstract: An optical filter, a sensor device including the optical filter, and a method of fabricating the optical filter are provided. The optical filter includes one or more dielectric layers and one or more metal layers stacked in alternation. The metal layers are intrinsically protected by the dielectric layers. In particular, the metal layers have tapered edges that are protectively covered by one or more of the dielectric layers.Type: GrantFiled: July 10, 2023Date of Patent: July 22, 2025Assignee: VIAVI Solutions Inc.Inventors: Georg J. Ockenfuss, Tim Gustafson, Jeffrey James Kuna, Markus Bilger, Richard A. Bradley, Jr.
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Patent number: 12317620Abstract: A variable optical filter is disclosed including a bandpass filter and a blocking filter. The bandpass filter includes a stack of alternating first and second layers, and the blocking filter includes a stack of alternating third and fourth layers. The first, second and fourth materials each comprise different materials, so that a refractive index of the first material is smaller than a refractive index of the second material, which is smaller than a refractive index of the fourth material; while an absorption coefficient of the second material is smaller than an absorption coefficient of the fourth material. The materials can be selected to ensure high index contrast in the blocking filter and low optical losses in the bandpass filter. The first to fourth layers can be deposited directly on a photodetector array.Type: GrantFiled: August 24, 2020Date of Patent: May 27, 2025Assignee: VIAVI Solutions Inc.Inventors: Karen Denise Hendrix, Charles A. Hulse, Richard A. Bradley, Jeffrey James Kuna
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Patent number: 12078829Abstract: An optical filter, a sensor device including the optical filter, and a method of fabricating the optical filter are provided. The optical filter includes one or more dielectric layers and one or more metal layers stacked in alternation. The metal layers are intrinsically protected by the dielectric layers. In particular, the metal layers have tapered edges that are protectively covered by one or more of the dielectric layers.Type: GrantFiled: July 10, 2023Date of Patent: September 3, 2024Assignee: VIAVI Solutions Inc.Inventors: Georg J. Ockenfuss, Tim Gustafson, Jeffrey James Kuna, Markus Bilger, Richard A. Bradley, Jr.
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Patent number: 12055739Abstract: An optical filter having a passband at least partially overlapping with a wavelength range of 800 nm to 1100 nm is provided. The optical filter includes a filter stack formed of hydrogenated silicon layers and lower-refractive index layers stacked in alternation. The hydrogenated silicon layers each have a refractive index of greater than 3 over the wavelength range of 800 mn to 1100 nm and an extinction coefficient of less than 0.0005 over the wavelength range of 800 nm to 1100 nm.Type: GrantFiled: September 3, 2021Date of Patent: August 6, 2024Assignee: VIAVI Solutions Inc.Inventors: Karen Denise Hendrix, Richard A. Bradley, Jr., Marius Grigonis, Georg J. Ockenfuss
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Patent number: 11782199Abstract: An optical filter, a sensor device including the optical filter, and a method of fabricating the optical filter are provided. The optical filter includes one or more dielectric layers and one or more metal layers stacked in alternation. The metal layers are intrinsically protected by the dielectric layers. In particular, the metal layers have tapered edges that are protectively covered by one or more of the dielectric layers.Type: GrantFiled: January 19, 2021Date of Patent: October 10, 2023Assignee: VIAVI Solutions Inc.Inventors: Georg J. Ockenfuss, Tim Gustafson, Jeffrey James Kuna, Markus Bilger, Richard A. Bradley, Jr.
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Patent number: 11486042Abstract: A device including a hard shield material; a layer including aluminum or copper; and a silicon layer having a first thickness is disclosed. The device can also include a silicon layer having a second thickness. A method of making the device is also disclosed.Type: GrantFiled: January 17, 2019Date of Patent: November 1, 2022Assignee: VIAVI SOLUTIONS INC.Inventors: Adam Andrew Preuss, Richard A. Bradley, Jr., Georg J. Ockenfuss, Markus K. Tilsch, Andrew Clark, Marius Grigonis, Andy Shkabko, Nicolas Alexander Davis, Anthony Jay Kemp Cottrell
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Patent number: 11215741Abstract: A filter may include a first component filter associated with a first angle shift and a first passband. The filter may include a second component filter associated with a second angle shift and a second passband, wherein the first angle shift, the first passband, the second angle shift, and the second passband are configured to make the filter transmissive to a spectral range of light at a first angle of incidence and reflective to the spectral range of light at a second angle of incidence.Type: GrantFiled: October 18, 2018Date of Patent: January 4, 2022Assignee: VIAVI Solutions Inc.Inventors: Richard A. Bradley, Jr., Tim Gustafson
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Patent number: 11156753Abstract: An optical filter may include a monolithic substrate. The optical filter may include a first component filter disposed onto a first region of the monolithic substrate. The first component filter may be a near infrared (NIR) bandpass filter. The optical filter may include a second component filter disposed onto a second region of the monolithic substrate. The second component filter may include a red-green-blue (RGB) bandpass filter. A separation between the first component filter and the second component filter may be less than approximately 50 micrometers (?m).Type: GrantFiled: December 18, 2017Date of Patent: October 26, 2021Assignee: VIAVI Solutions Inc.Inventors: Markus Bilger, Richard A. Bradley, Jr.
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Patent number: 11131794Abstract: An optical filter having a passband at least partially overlapping with a wavelength range of 800 nm to 1100 nm is provided. The optical filter includes a filter stack formed of hydrogenated silicon layers and lower-refractive index layers stacked in alternation. The hydrogenated silicon layers each have a refractive index of greater than 3 over the wavelength range of 800 nm to 1100 nm and an extinction coefficient of less than 0.0005 over the wavelength range of 800 nm to 1100 nm.Type: GrantFiled: March 1, 2019Date of Patent: September 28, 2021Assignee: VIAVI Solutions Inc.Inventors: Karen Denise Hendrix, Richard A. Bradley, Jr., Marius Grigonis, Georg J. Ockenfuss
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Patent number: 10928570Abstract: An optical filter, a sensor device including the optical filter, and a method of fabricating the optical filter are provided. The optical filter includes one or more dielectric layers and one or more metal layers stacked in alternation. The metal layers are intrinsically protected by the dielectric layers. In particular, the metal layers have tapered edges that are protectively covered by one or more of the dielectric layers.Type: GrantFiled: February 4, 2019Date of Patent: February 23, 2021Assignee: VIAVI Solutions Inc.Inventors: Georg J. Ockenfuss, Tim Gustafson, Jeffrey James Kuna, Markus Bilger, Richard A. Bradley, Jr.
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Patent number: 10756131Abstract: A variable optical filter is disclosed including a bandpass filter and a blocking filter. The bandpass filter includes a stack of alternating first and second layers, and the blocking filter includes a stack of alternating third and fourth layers. The first, second and fourth materials each comprise different materials, so that a refractive index of the first material is smaller than a refractive index of the second material, which is smaller than a refractive index of the fourth material; while an absorption coefficient of the second material is smaller than an absorption coefficient of the fourth material. The materials can be selected to ensure high index contrast in the blocking filter and low optical losses in the bandpass filter. The first to fourth layers can be deposited directly on a photodetector array.Type: GrantFiled: May 29, 2019Date of Patent: August 25, 2020Assignee: VIAVI Solutions Inc.Inventors: Karen Denise Hendrix, Charles A. Hulse, Richard A. Bradley, Jeffrey James Kuna
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Publication number: 20190296067Abstract: A variable optical filter is disclosed including a bandpass filter and a blocking filter. The bandpass filter includes a stack of alternating first and second layers, and the blocking filter includes a stack of alternating third and fourth layers. The first, second and fourth materials each comprise different materials, so that a refractive index of the first material is smaller than a refractive index of the second material, which is smaller than a refractive index of the fourth material; while an absorption coefficient of the second material is smaller than an absorption coefficient of the fourth material. The materials can be selected to ensure high index contrast in the blocking filter and low optical losses in the bandpass filter. The first to fourth layers can be deposited directly on a photodetector array.Type: ApplicationFiled: May 29, 2019Publication date: September 26, 2019Inventors: Karen Denise HENDRIX, Charles A. Hulse, Richard A. Bradley, Jeffrey James Kuna
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Publication number: 20190187347Abstract: An optical filter may include a monolithic substrate. The optical filter may include a first component filter disposed onto a first region of the monolithic substrate. The first component filter may be a near infrared (NIR) bandpass filter. The optical filter may include a second component filter disposed onto a second region of the monolithic substrate. The second component filter may include a red-green-blue (RGB) bandpass filter. A separation between the first component filter and the second component filter may be less than approximately 50 micrometers (?m).Type: ApplicationFiled: December 18, 2017Publication date: June 20, 2019Inventors: Markus Bilger, Richard A. Bradley, JR.
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Publication number: 20190170921Abstract: An optical filter, a sensor device including the optical filter, and a method of fabricating the optical filter are provided. The optical filter includes one or more dielectric layers and one or more metal layers stacked in alternation. The metal layers are intrinsically protected by the dielectric layers. In particular, the metal layers have tapered edges that are protectively covered by one or more of the dielectric layers.Type: ApplicationFiled: February 4, 2019Publication date: June 6, 2019Inventors: Georg J. Ockenfuss, Tim Gustafson, Jeffrey James Kuna, Markus Bilger, Richard A. Bradley, JR.
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Patent number: 10312277Abstract: A variable optical filter is disclosed including a bandpass filter and a blocking filter. The bandpass filter includes a stack of alternating first and second layers, and the blocking filter includes a stack of alternating third and fourth layers. The first, second and fourth materials each comprise different materials, so that a refractive index of the first material is smaller than a refractive index of the second material, which is smaller than a refractive index of the fourth material; while an absorption coefficient of the second material is smaller than an absorption coefficient of the fourth material. The materials can be selected to ensure high index contrast in the blocking filter and low optical losses in the bandpass filter. The first to fourth layers can be deposited directly on a photodetector array.Type: GrantFiled: December 11, 2017Date of Patent: June 4, 2019Assignee: VIAVI Solutions Inc.Inventors: Karen Denise Hendrix, Charles A. Hulse, Richard A. Bradley, Jeffrey James Kuna
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Patent number: 10222526Abstract: An optical filter having a passband at least partially overlapping with a wavelength range of 800 nm to 1100 nm is provided. The optical filter includes a filter stack formed of hydrogenated silicon layers and lower-refractive index layers stacked in alternation. The hydrogenated silicon layers each have a refractive index of greater than 3 over the wavelength range of 800 nm to 1100 nm and an extinction coefficient of less than 0.0005 over the wavelength range of 800 nm to 1100 nm.Type: GrantFiled: June 8, 2017Date of Patent: March 5, 2019Assignee: VIAVI Solutions Inc.Inventors: Karen Denise Hendrix, Richard A. Bradley, Jr., Marius Grigonis, Georg J. Ockenfuss
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Patent number: 10197716Abstract: An optical filter, a sensor device including the optical filter, and a method of fabricating the optical filter are provided. The optical filter includes one or more dielectric layers and one or more metal layers stacked in alternation. The metal layers are intrinsically protected by the dielectric layers. In particular, the metal layers have tapered edges that are protectively covered by one or more of the dielectric layers.Type: GrantFiled: June 18, 2014Date of Patent: February 5, 2019Assignee: VIAVI Solutions Inc.Inventors: Georg J. Ockenfuss, Tim Gustafson, Jeffrey James Kuna, Markus Bilger, Richard A Bradley
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Publication number: 20180108694Abstract: A variable optical filter is disclosed including a bandpass filter and a blocking filter. The bandpass filter includes a stack of alternating first and second layers, and the blocking filter includes a stack of alternating third and fourth layers. The first, second and fourth materials each comprise different materials, so that a refractive index of the first material is smaller than a refractive index of the second material, which is smaller than a refractive index of the fourth material; while an absorption coefficient of the second material is smaller than an absorption coefficient of the fourth material. The materials can be selected to ensure high index contrast in the blocking filter and low optical losses in the bandpass filter. The first to fourth layers can be deposited directly on a photodetector array.Type: ApplicationFiled: December 11, 2017Publication date: April 19, 2018Inventors: Karen Denise HENDRIX, Charles A. Hulse, Richard A. Bradley, Jeffrey James Kuna
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Patent number: 9945995Abstract: An optical filter having a passband at least partially overlapping with a wavelength range of 800 nm to 1100 nm is provided. The optical filter includes a filter stack formed of hydrogenated silicon layers and lower-refractive index layers stacked in alternation. The hydrogenated silicon layers each have a refractive index of greater than 3 over the wavelength range of 800 nm to 1100 nm and an extinction coefficient of less than 0.0005 over the wavelength range of 800 nm to 1100 nm.Type: GrantFiled: April 14, 2016Date of Patent: April 17, 2018Assignee: VIAVI Solutions Inc.Inventors: Karen Denise Hendrix, Richard A. Bradley, Jr., Marius Grigonis, Georg J. Ockenfuss
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Patent number: 9842873Abstract: A variable optical filter is disclosed including a bandpass filter and a blocking filter. The bandpass filter includes a stack of alternating first and second layers, and the blocking filter includes a stack of alternating third and fourth layers. The first, second and fourth materials each comprise different materials, so that a refractive index of the first material is smaller than a refractive index of the second material, which is smaller than a refractive index of the fourth material; while an absorption coefficient of the second material is smaller than an absorption coefficient of the fourth material. The materials can be selected to ensure high index contrast in the blocking filter and low optical losses in the bandpass filter. The first to fourth layers can be deposited directly on a photodetector array.Type: GrantFiled: October 28, 2016Date of Patent: December 12, 2017Assignee: Viavi Solutions Inc.Inventors: Karen Denise Hendrix, Charles A. Hulse, Richard A. Bradley, Jeffrey James Kuna