Patents by Inventor Praveen Pandojirao
Praveen Pandojirao 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: 10718962Abstract: The present invention provides a method of making a mask for patterning a three-dimensional substrate. A mandrel includes a form machined in a surface corresponding to a shape of the substrate. A layer of material is deposited in a first region of the form and a metal layer is deposited in a second region of the form. A portion of the mandrel is subsequently removed. The present invention also provides a method of patterning a three-dimensional substrate with a mask.Type: GrantFiled: May 1, 2018Date of Patent: July 21, 2020Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Praveen Pandojirao, James D. Riall, Adam Toner, Jeffrey Miller
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Patent number: 10690940Abstract: This invention discloses methods and apparatus for providing a variable aperture insert into a lens. A liquid crystal layer may be used to provide a variable aperture function and in some examples. In other examples, electrochromic, photochromic, liquid meniscus or electroactive elastomeric devices may form a light blocking element of a variable aperture insert. In some examples, an ophthalmic lens is cast-molded from a silicone hydrogel including a variable aperture insert.Type: GrantFiled: January 22, 2018Date of Patent: June 23, 2020Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Randall B. Pugh, Frederick A. Flitsch, Praveen Pandojirao
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Patent number: 10386653Abstract: Methods and apparatuses for providing a variable optic insert into an ophthalmic lens as set forth. An energy source is capable of powering the variable optic insert included within the ophthalmic lens. In some embodiments, an ophthalmic lens is cast-molded from a silicone hydrogel. The various ophthalmic lens entities may include electroactive liquid crystal layers to electrically control refractive characteristics.Type: GrantFiled: August 24, 2016Date of Patent: August 20, 2019Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Stephen R. Beaton, Luciano De Sio, Frederick A. Flitsch, Praveen Pandojirao, Randall Braxton Pugh, James Daniel Riall, Svetlana Serak, Nelson V. Tabirian, Adam Toner, Olena Uskova
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Publication number: 20180284480Abstract: This invention discloses methods and apparatus for providing a variable optic insert into an ophthalmic lens. A liquid crystal layer may be used to provide a variable optic function and in some examples, an alignment layer for the liquid crystal layer may be patterned in a cycloidally dependent manner. The patterning may allow for a polarization dependent lens in some examples. An energy source is capable of powering the variable optic insert included within the ophthalmic lens. In some examples, an ophthalmic lens is cast-molded from a silicone hydrogel. The various ophthalmic lens entities may include electroactive liquid crystal layers to electrically control optical characteristics.Type: ApplicationFiled: September 11, 2017Publication date: October 4, 2018Inventors: Luciano De Sio, Frederick A. Flitsch, Praveen Pandojirao-S, Randall Braxton Pugh, Svetlan Serak, Nelson V. Tabirian, Adam Toner, Olena Uskova, James Daniel Riall
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Publication number: 20180252944Abstract: This invention discloses methods and apparatus for providing a variable aperture insert into a lens. A liquid crystal layer may be used to provide a variable aperture function and in some examples. In other examples, electrochromic, photochromic, liquid meniscus or electroactive elastomeric devices may form a light blocking element of a variable aperture insert. In some examples, an ophthalmic lens is cast-molded from a silicone hydrogel including a variable aperture insert.Type: ApplicationFiled: January 22, 2018Publication date: September 6, 2018Inventors: Randall B. Pugh, Frederick A. Flitsch, Praveen Pandojirao
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Publication number: 20180246349Abstract: The present invention provides a method of making a mask for patterning a three-dimensional substrate. A mandrel includes a form machined in a surface corresponding to a shape of the substrate. A layer of material is deposited in a first region of the form and a metal layer is deposited in a second region of the form. A portion of the mandrel is subsequently removed. The present invention also provides a method of patterning a three-dimensional substrate with a mask.Type: ApplicationFiled: May 1, 2018Publication date: August 30, 2018Applicant: Johnson & Johnson Vision Care, Inc.Inventors: Praveen Pandojirao, James D. Riall, Adam Toner, Jeffrey Miller
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Patent number: 9995951Abstract: The present invention provides a method of making a mask for patterning a three-dimensional substrate. A mandrel includes a form machined in a surface corresponding to a shape of the substrate. A layer of material is deposited in a first region of the form and a metal layer is deposited in a second region of the form. A portion of the mandrel is subsequently removed. The present invention also provides a method of patterning a three-dimensional substrate with a mask.Type: GrantFiled: April 24, 2015Date of Patent: June 12, 2018Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Praveen Pandojirao, James D. Riall, Adam Toner, Jeffrey Miller
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Publication number: 20180122418Abstract: An ultrasonic molding device for molding thin-walled optical components which includes an ultrasonic assembly and a plunger assembly for melting thermoplastic material and injecting it into a mold under reduced pressure conditions.Type: ApplicationFiled: November 3, 2017Publication date: May 3, 2018Applicant: Johnson & Johnson Vision Care, Inc.Inventors: Victor Lust, Jeffrey Miller, David Porter, Praveen Pandojirao, Randall B. Pugh
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Patent number: 9958704Abstract: This invention discloses methods and apparatus for providing a variable optic insert into an ophthalmic lens. A liquid crystal layer may be used to provide a variable optic function and in some examples, an alignment layer for the liquid crystal layer may be patterned in a cycloidally dependent manner. The patterning may allow for a polarization dependent lens in some examples. An energy source is capable of powering the variable optic insert included within the ophthalmic lens. In some examples, an ophthalmic lens is cast-molded from a silicone hydrogel. The various ophthalmic lens entities may include electroactive liquid crystal layers to electrically control optical characteristics.Type: GrantFiled: May 26, 2016Date of Patent: May 1, 2018Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Luciano De Sio, Frederick A. Flitsch, Praveen Pandojirao-S, Randall Braxton Pugh, Svetlan Serak, Nelson V. Tabirian, Adam Toner, Olena Uskova, James Daniel Riall
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Patent number: 9880398Abstract: This invention discloses methods and apparatus for providing a variable optic insert into an ophthalmic lens. The variable optic insert may have surfaces within that have differing radii of curvature. A liquid crystal layer may be used to provide a variable optic function and in some embodiments, an alignment layer for the liquid crystal layer may be patterned in a radially dependent manner. The patterning may allow for the index of refraction of the optic device to vary in a gradient-indexed or GRIN manner. An energy source is capable of powering the variable optic insert included within the ophthalmic lens. In some embodiments, an ophthalmic lens is cast-molded from a silicone hydrogel. The various ophthalmic lens entities may include electroactive liquid crystal layers to electrically control optical characteristics.Type: GrantFiled: August 27, 2014Date of Patent: January 30, 2018Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Luciano De Sio, Frederick A. Flitsch, Praveen Pandojirao-S, Randall Braxton Pugh, James Daniel Riall, Svetlana Serak, Nelson V. Tabirian, Adam Toner, Olena Uskova
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Patent number: 9869885Abstract: This invention discloses methods and apparatus for providing a variable optic insert into an ophthalmic lens. A liquid crystal layer may be used to provide a variable optic function and in some embodiments, an alignment layer for the liquid crystal layer may be patterned in a radially dependent manner. The patterning may allow for the index of refraction of the optic device to vary in a gradient indexed or GRIN manner. At least a first layer of dielectric material that may vary in thickness at least across the optic zone of the device may aid in defining an electric field across the liquid crystal layer. An energy source is capable of powering the variable optic insert included within the ophthalmic lens. In some embodiments, an ophthalmic lens is cast-molded from a silicone hydrogel. The various ophthalmic lens entities may include electroactive liquid crystal layers to electrically control optical characteristics.Type: GrantFiled: September 16, 2014Date of Patent: January 16, 2018Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Luciano De Sio, Frederick A. Flitsch, Praveen Pandojirao-S, Randall Braxton Pugh, James Daniel Riall, Svetlana Serak, Nelson V. Tabirian, Adam Toner, Olena Uskova
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Patent number: 9835876Abstract: This invention discloses methods and apparatus for providing a variable optic insert into an ophthalmic lens. A liquid crystal layer may be used to provide a variable optic function and in some examples, an alignment layer for the liquid crystal layer may be patterned in a cycloidally dependent manner. The patterning may allow for a polarization dependent lens in some examples. An energy source is capable of powering the variable optic insert included within the ophthalmic lens. In some examples, an ophthalmic lens is cast-molded from a silicone hydrogel. The various ophthalmic lens entities may include electroactive liquid crystal layers to electrically control optical characteristics.Type: GrantFiled: May 26, 2016Date of Patent: December 5, 2017Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Luciano De Sio, Frederick A. Flitsch, Praveen Pandojirao-S, Randall Braxton Pugh, Svetlan Serak, Nelson V. Tabirian, Adam Toner, Olena Uskova, James Daniel Riall
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Patent number: 9823490Abstract: This invention discloses methods and apparatus for providing a variable optic insert into an ophthalmic lens. A liquid crystal layer may be used to provide a variable optic function and in some examples, an alignment layer for the liquid crystal layer may be patterned in a cycloidally dependent manner. The patterning may allow for a polarization dependent lens in some examples. An energy source is capable of powering the variable optic insert included within the ophthalmic lens. In some examples, an ophthalmic lens is cast-molded from a silicone hydrogel. The various ophthalmic lens entities may include electroactive liquid crystal layers to electrically control optical characteristics.Type: GrantFiled: May 26, 2016Date of Patent: November 21, 2017Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Luciano De Sio, Frederick A. Flitsch, Praveen Pandojirao-S, Randall Braxton Pugh, Svetlan Serak, Nelson V. Tabirian, Adam Toner, Olena Uskova, James Daniel Riall
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Patent number: 9823492Abstract: This invention discloses methods and apparatus for providing a variable optic insert into an ophthalmic lens. A liquid crystal layer may be used to provide a variable optic function and in some examples, an alignment layer for the liquid crystal layer may be patterned in a cycloidally dependent manner. The patterning may allow for a polarization dependent lens in some examples. An energy source is capable of powering the variable optic insert included within the ophthalmic lens. In some examples, an ophthalmic lens is cast-molded from a silicone hydrogel. The various ophthalmic lens entities may include electroactive liquid crystal layers to electrically control optical characteristics.Type: GrantFiled: May 26, 2016Date of Patent: November 21, 2017Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Luciano De Sio, Frederick A. Flitsch, Praveen Pandojirao-S, Randall Braxton Pugh, Svetlan Serak, Nelson V. Tabirian, Adam Toner, Olena Uskova, James Daniel Riall
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Patent number: 9823491Abstract: This invention discloses methods and apparatus for providing a variable optic insert into an ophthalmic lens. A liquid crystal layer may be used to provide a variable optic function and in some examples, an alignment layer for the liquid crystal layer may be patterned in a cycloidally dependent manner. The patterning may allow for a polarization dependent lens in some examples. An energy source is capable of powering the variable optic insert included within the ophthalmic lens. In some examples, an ophthalmic lens is cast-molded from a silicone hydrogel. The various ophthalmic lens entities may include electroactive liquid crystal layers to electrically control optical characteristics.Type: GrantFiled: May 26, 2016Date of Patent: November 21, 2017Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Luciano De Sio, Frederick A. Flitsch, Praveen Pandojirao-S, Randall Braxton Pugh, Svetlan Serak, Nelson V. Tabirian, Adam Toner, Olena Uskova, James Daniel Riall
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Patent number: 9817244Abstract: This invention discloses methods and apparatus for providing a variable optic insert into an ophthalmic lens. A liquid crystal layer may be used to provide a variable optic function and in some examples, an alignment layer for the liquid crystal layer may be patterned in a cycloidally dependent manner. The patterning may allow for a polarization dependent lens in some examples. An energy source is capable of powering the variable optic insert included within the ophthalmic lens. In some examples, an ophthalmic lens is cast-molded from a silicone hydrogel. The various ophthalmic lens entities may include electroactive liquid crystal layers to electrically control optical characteristics.Type: GrantFiled: May 26, 2016Date of Patent: November 14, 2017Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Luciano De Sio, Frederick A. Flitsch, Praveen Pandojirao-S, Randall Braxton Pugh, Svetlan Serak, Nelson V. Tabirian, Adam Toner, Olena Uskova, James Daniel Riall
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Patent number: 9817245Abstract: This invention discloses methods and apparatus for providing a variable optic insert into an ophthalmic lens. A liquid crystal layer may be used to provide a variable optic function and in some examples, an alignment layer for the liquid crystal layer may be patterned in a cycloidally dependent manner. The patterning may allow for a polarization dependent lens in some examples. An energy source is capable of powering the variable optic insert included within the ophthalmic lens. In some examples, an ophthalmic lens is cast-molded from a silicone hydrogel. The various ophthalmic lens entities may include electroactive liquid crystal layers to electrically control optical characteristics.Type: GrantFiled: May 26, 2016Date of Patent: November 14, 2017Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Luciano De Sio, Frederick A. Flitsch, Praveen Pandojirao-S, Randall Braxton Pugh, Svetlan Serak, Nelson V. Tabirian, Adam Toner, Olena Uskova, James Daniel Riall
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Patent number: 9784993Abstract: This invention discloses methods and apparatus for providing a variable optic insert into an ophthalmic lens. A liquid crystal layer may be used to provide a variable optic function and in some examples, an alignment layer for the liquid crystal layer may be patterned in a cycloidally dependent manner. The patterning may allow for a polarization dependent lens in some examples. An energy source is capable of powering the variable optic insert included within the ophthalmic lens. In some examples, an ophthalmic lens is cast-molded from a silicone hydrogel. The various ophthalmic lens entities may include electroactive liquid crystal layers to electrically control optical characteristics.Type: GrantFiled: May 26, 2016Date of Patent: October 10, 2017Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Luciano De Sio, Frederick A. Flitsch, Praveen Pandojirao-S, Randall Braxton Pugh, Svetlan Serak, Nelson V. Tabirian, Adam Toner, Olena Uskova, James Daniel Riall
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Publication number: 20170090215Abstract: This invention discloses methods and apparatus for providing a variable optic insert into an ophthalmic lens. The variable optic insert may have surfaces within that have differing radii of curvature. A liquid crystal layer may be used to provide a variable optic function and in some embodiments, an alignment layer for the liquid crystal layer may be patterned in a radially dependent manner. The patterning may allow for the index of refraction of the optic device to vary in a gradient-indexed or GRIN manner. An energy source is capable of powering the variable optic insert included within the ophthalmic lens. In some embodiments, an ophthalmic lens is cast-molded from a silicone hydrogel. The various ophthalmic lens entities may include electroactive liquid crystal layers to electrically control optical characteristics.Type: ApplicationFiled: August 27, 2014Publication date: March 30, 2017Applicant: Johnson & Johnson Vision Care, Inc.Inventors: Luciano De Sio, Frederick A. Flitsch, Praveen Pandojirao-S, Randall Braxton Pugh, James Daniel Riall, Svetlana Serak, Nelson V. Tabirian, Adam Toner, Olena Uskova
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Patent number: 9592116Abstract: This invention discloses methods and apparatus for providing a variable optic insert into an ophthalmic lens. A liquid crystal layer may be used to provide a variable optic function and in some examples, an alignment layer for the liquid crystal layer may be patterned in a cycloidally dependent manner. The patterning may allow for a polarization dependent lens in some examples. An energy source is capable of powering the variable optic insert included within the ophthalmic lens. In some examples, an ophthalmic lens is cast-molded from a silicone hydrogel. The various ophthalmic lens entities may include electroactive liquid crystal layers to electrically control optical characteristics.Type: GrantFiled: September 16, 2014Date of Patent: March 14, 2017Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Luciano De Sio, Frederick A. Flitsch, Praveen Pandojirao-S, Randall Braxton Pugh, Svetlana Serak, Nelson V. Tabirian, Adam Toner, Olena Uskova, James Daniel Riall