Patents by Inventor Robert Tienhan CHANG
Robert Tienhan CHANG 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: 11484201Abstract: Modular lens adapter system are provided for use with a hand held computer device having a camera for mobile ophthalmoscopy. The modular lens adapter systems include an anterior adapter and a posterior adapter configured to removably engage with a hand held computer device. The anterior adapter can include a variable intensity light source, a clamp, and a movable macro lens. The posterior adapter can include a hand held computer device mount, a lens mount, and a telescoping arm with a first end and a second end with the first end configured to removably engage with the mount and the second end configured to contact the lens mount. Methods are also provided for using the systems to obtain an image of an anterior portion of the patient's eye and a posterior portion of the patient's eye.Type: GrantFiled: February 14, 2020Date of Patent: November 1, 2022Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: David Myung, Robert Tienhan Chang, Alexandre Jais
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Publication number: 20200281465Abstract: Modular lens adapter system are provided for use with a hand held computer device having a camera for mobile ophthalmoscopy. The modular lens adapter systems include an anterior adapter and a posterior adapter configured to removably engage with a hand held computer device. The anterior adapter can include a variable intensity light source, a clamp, and a movable macro lens. The posterior adapter can include a hand held computer device mount, a lens mount, and a telescoping arm with a first end and a second end with the first end configured to removably engage with the mount and the second end configured to contact the lens mount. Methods are also provided for using the systems to obtain an image of an anterior portion of the patient's eye and a posterior portion of the patient's eye.Type: ApplicationFiled: February 14, 2020Publication date: September 10, 2020Inventors: David MYUNG, Robert Tienhan CHANG, Alexandre JAIS
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Patent number: 10743761Abstract: A modular lens adapter system or kit is provided for mobile anterior and posterior segment ophthalmoscopy. Equipped with various lens adapter modules, respective lenses and a mobile imaging device, a user is provided with tools for various mobile ophthalmoscopy imaging applications. Eye care practitioners can use their existing lenses to customize the modular lens adapter system in a cost-effective way, which allows for mobile and remote capture, viewing, and utilization of clinical images. The various modules are also adaptable to nearly any type of phone or tablet regardless of its dimensions or presence of a protective case. The invention also addresses the need for fewer, smaller, less expensive, and easier to use ophthalmic imaging equipment, which is further important in enabling a broad base of users.Type: GrantFiled: September 28, 2018Date of Patent: August 18, 2020Assignee: The Board of Trustees of the Leland Stanford Junior UniveristyInventors: David Myung, Robert Tienhan Chang, Lingmin He, Alex Nugent, Huynh P. Van, Ira G. Wong, Alexandre Jais, Mark Blumenkranz
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Patent number: 10561315Abstract: Modular lens adapter system are provided for use with a hand held computer device having a camera for mobile ophthalmoscopy. The modular lens adapter systems include an anterior adapter and a posterior adapter configured to removably engage with a hand held computer device. The anterior adapter can include a variable intensity light source, a clamp, and a movable macro lens. The posterior adapter can include a hand held computer device mount, a lens mount, and a telescoping arm with a first end and a second end with the first end configured to removably engage with the mount and the second end configured to contact the lens mount. Methods are also provided for using the systems to obtain an image of an anterior portion of the patient's eye and a posterior portion of the patient's eye.Type: GrantFiled: March 25, 2016Date of Patent: February 18, 2020Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: David Myung, Robert Tienhan Chang, Alexandre Jais
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Publication number: 20190269325Abstract: A modular lens adapter system or kit is provided for mobile anterior and posterior segment ophthalmoscopy. Equipped with various lens adapter modules, respective lenses and a mobile imaging device, a user is provided with tools for various mobile ophthalmoscopy imaging applications. Eye care practitioners can use their existing lenses to customize the modular lens adapter system in a cost-effective way, which allows for mobile and remote capture, viewing, and utilization of clinical images. The various modules are also adaptable to nearly any type of phone or tablet regardless of its dimensions or presence of a protective case. The invention also addresses the need for fewer, smaller, less expensive, and easier to use ophthalmic imaging equipment, which is further important in enabling a broad base of users.Type: ApplicationFiled: September 28, 2018Publication date: September 5, 2019Inventors: David MYUNG, Robert Tienhan CHANG, Lingmin HE, Alex NUGENT, Huynh P. VAN, Ira G. WONG, Alexandre JAIS, Mark BLUMENKRANZ
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Patent number: 10092182Abstract: A modular lens adapter system or kit is provided for mobile anterior and posterior segment ophthalmoscopy. Equipped with various lens adapter modules, respective lenses and a mobile imaging device, a user is provided with tools for various mobile ophthalmoscopy imaging applications. Eye care practitioners can use their existing lenses to customize the modular lens adapter system in a cost-effective way, which allows for mobile and remote capture, viewing, and utilization of clinical images. The various modules are also adaptable to nearly any type of phone or tablet regardless of its dimensions or presence of a protective case. The invention also addresses the need for fewer, smaller, less expensive, and easier to use ophthalmic imaging equipment, which is further important in enabling a broad base of users.Type: GrantFiled: June 14, 2017Date of Patent: October 9, 2018Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: David Myung, Robert Tienhan Chang, Lingmin He, Alex Nugent, Huynh P. Van, Ira G. Wong, Alexandre Jais, Mark Blumenkranz
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Publication number: 20180116509Abstract: Modular lens adapter system are provided for use with a hand held computer device having a camera for mobile ophthalmoscopy. The modular lens adapter systems include an anterior adapter and a posterior adapter configured to removably engage with a hand held computer device. The anterior adapter can include a variable intensity light source, a clamp, and a movable macro lens. The posterior adapter can include a hand held computer device mount, a lens mount, and a telescoping arm with a first end and a second end with the first end configured to removably engage with the mount and the second end configured to contact the lens mount. Methods are also provided for using the systems to obtain an image of an anterior portion of the patient's eye and a posterior portion of the patient's eye.Type: ApplicationFiled: March 25, 2016Publication date: May 3, 2018Applicant: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITYInventors: David MYUNG, Robert Tienhan CHANG, Alexandre JAIS
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Publication number: 20170280996Abstract: A modular lens adapter system or kit is provided for mobile anterior and posterior segment ophthalmoscopy. Equipped with various lens adapter modules, respective lenses and a mobile imaging device, a user is provided with tools for various mobile ophthalmoscopy imaging applications. Eye care practitioners can use their existing lenses to customize the modular lens adapter system in a cost-effective way, which allows for mobile and remote capture, viewing, and utilization of clinical images. The various modules are also adaptable to nearly any type of phone or tablet regardless of its dimensions or presence of a protective case. The invention also addresses the need for fewer, smaller, less expensive, and easier to use ophthalmic imaging equipment, which is further important in enabling a broad base of users.Type: ApplicationFiled: June 14, 2017Publication date: October 5, 2017Inventors: David MYUNG, Robert Tienhan CHANG, Lingmin HE, Alex NUGENT, Huynh P. VAN, Ira G. WONG, Alexandre JAIS, Mark BLUMENKRANZ
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Patent number: 9706918Abstract: A modular lens adapter system or kit is provided for mobile anterior and posterior segment ophthalmoscopy. Equipped with various lens adapter modules, respective lenses and a mobile imaging device, a user is provided with tools for various mobile ophthalmoscopy imaging applications. Eye care practitioners can use their existing lenses to customize the modular lens adapter system in a cost-effective way, which allows for mobile and remote capture, viewing, and utilization of clinical images. The various modules are also adaptable to nearly any type of phone or tablet regardless of its dimensions or presence of a protective case. The invention also addresses the need for fewer, smaller, less expensive, and easier to use ophthalmic imaging equipment, which is further important in enabling a broad base of users.Type: GrantFiled: May 30, 2014Date of Patent: July 18, 2017Assignee: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITYInventors: David Myung, Robert Tienhan Chang, Lingmin He, Alex Nugent, Huynh P. Van, Ira G. Wong, Alexandre Jais, Mark Blumenkranz
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Publication number: 20160113489Abstract: A modular lens adapter system or kit is provided for mobile anterior and posterior segment ophthalmoscopy. Equipped with various lens adapter modules, respective lenses and a mobile imaging device, a user is provided with tools for various mobile ophthalmoscopy imaging applications. Eye care practitioners can use their existing lenses to customize the modular lens adapter system in a cost-effective way, which allows for mobile and remote capture, viewing, and utilization of clinical images. The various modules are also adaptable to nearly any type of phone or tablet regardless of its dimensions or presence of a protective case. The invention also addresses the need for fewer, smaller, less expensive, and easier to use ophthalmic imaging equipment, which is further important in enabling a broad base of users.Type: ApplicationFiled: May 30, 2014Publication date: April 28, 2016Inventors: David MYUNG, Robert Tienhan CHANG, Lingmin HE, Alex NUGENT, Huynh P. VAN, Ira G. WONG, Alexandre JAIS, Mark BLUMENKRANZ