Patents Assigned to Calhoun Vision, Inc.
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Publication number: 20170020658Abstract: The invention relates to novel optical elements having improved UV protection. The optical element comprises a light adjustable optical element with a UV absorbent layer applied to at least one surface of the optical element. The invention is particularly useful in light adjustable intraocular lenses.Type: ApplicationFiled: July 20, 2015Publication date: January 26, 2017Applicant: Calhoun Vision, Inc,Inventors: Robert H. Grubbs, Shiao H. Chang
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Publication number: 20160339657Abstract: A method for adjusting a light adjustable lens in an optical system includes providing a light adjustable lens in an optical system; providing an ultraviolet light source to generate an ultraviolet light; and irradiating the generated ultraviolet light with a light delivery system onto the light adjustable lens with a center wavelength and with a spatial irradiance profile to change a dioptric power of the light adjustable lens by changing a refraction of the light adjustable lens in a refraction-change zone, thereby causing a wavefront sag, defined as half of a product of the change of the dioptric power and the square of a radius of the refraction-change zone, to be within 10% of its maximum over an ultraviolet spectrum.Type: ApplicationFiled: May 20, 2016Publication date: November 24, 2016Applicant: Calhoun Vision, Inc.Inventors: Robert H. Grubbs, Christian A. Sandstedt
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Publication number: 20160324629Abstract: In general, the present invention relates to optical elements, which can be modified post-manufacture such that different versions of the element will have different optical properties. In particular, the present invention relates to lenses, such as intraocular lenses, which can be converted into aspheric lenses post-fabrication. Also, the present invention relates to a method for forming aspheric lenses post-fabrication.Type: ApplicationFiled: July 20, 2016Publication date: November 10, 2016Applicant: Calhoun Vision, Inc.Inventors: Christian A. Sandstedt, Pablo Artal, Eloy Angel
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Publication number: 20160113761Abstract: The invention relates to a multi-lens intraocular lens system having an accommodation material between the lenses. The system comprises an posterior lens attached to the posterior surface of the capsular bag and an anterior lens attached to the anterior surface of the capsular bag. The anterior and posterior lenses have different optical properties providing different degrees and types of correction. An accommodation material is place between the anterior and posterior lenses. The accommodation material may comprise of one or more macromers, which, when polymerized, adjust the properties of the accommodation material.Type: ApplicationFiled: January 6, 2016Publication date: April 28, 2016Applicant: CALHOUN VISION, INC.Inventors: Okihiro Nishi, Kayo Nishi, Shiao H. Chang, Jerry Kaeni
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Patent number: 9119710Abstract: The invention relates to novel optical elements having improved UV protection. The optical element comprises a light adjustable optical element with a UV absorbent layer applied to at least one surface of the optical element. The invention is particularly useful in light adjustable intraocular lenses.Type: GrantFiled: September 8, 2006Date of Patent: September 1, 2015Assignee: Calhoun Vision, Inc.Inventors: Robert H. Grubbs, Shiao H. Chang
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Patent number: 9005282Abstract: The invention relates to a intraocular lens system having a flexible anterior lens accommodation material behind the lens. The accommodation material may comprise of one or more macromers, which, when polymerized, adjust the properties of the accommodation material. The anterior lens is flexible such that the curvature of the lens changes during accommodation. The anterior lens may be used alone or in combination with a posterior lens.Type: GrantFiled: April 20, 2007Date of Patent: April 14, 2015Assignee: Calhoun Vision, Inc.Inventors: Shiao H. Chang, Okihiro Nishi, Kayo Nishi, Jerry Kaeni, Ken Chuang
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Publication number: 20130197637Abstract: The invention relates to a novel method for preparing materials whose properties can be manipulated after fabrication. In this process, a base material is created in a manner that provides spaces or voids which can then be filled with a modifying composition. The method is particularly useful in the manufacture of light adjustable optical elements such as intraocular lenses.Type: ApplicationFiled: December 12, 2012Publication date: August 1, 2013Applicant: CALHOUN VISION, INCInventor: CALHOUN VISION, INC
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Patent number: 8361353Abstract: The invention relates to a novel method for preparing materials whose properties can be manipulated after fabrication. In this process, a base material is created in a manner that provides spaces or voids which can then be filled with a modifying composition. The method is particularly useful in the manufacture of light adjustable optical elements such as intraocular lenses.Type: GrantFiled: July 14, 2006Date of Patent: January 29, 2013Assignee: Calhoun Vision, Inc.Inventors: Axel Brait, Shiao H. Chang, Patrick Case
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Patent number: 7988285Abstract: The invention relates to novel intraocular lenses. The lenses are capable of post-operative adjustment of their optical properties, including conversion from single focal lenses to multifocal lenses.Type: GrantFiled: December 1, 2009Date of Patent: August 2, 2011Assignee: Calhoun Vision, Inc.Inventors: Christian A. Sandstedt, Jagdish M. Jethmalani, Shiao H. Chang
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Patent number: 7837326Abstract: The present invention relates to lenses that are capable of post-fabrication power modifications. In general, the inventive lenses comprise (i) a first polymer matrix and (ii) a refraction modulating composition that is capable of stimulus-induced polymerization dispersed therein. When at least a portion of the lens is exposed to an appropriate stimulus, the refraction modulating composition forms a second polymer matrix. The amount and location of the second polymer matrix may modify a lens characteristic such as lens power by changing its refractive index and/or by altering its shape. The inventive lenses have a number of applications in the electronics and medical fields as data storage means and as medical lenses, particularly intraocular lenses, respectively.Type: GrantFiled: June 16, 2006Date of Patent: November 23, 2010Assignee: Calhoun Vision, Inc.Inventors: Jagdish M. Jethmalani, Daniel M. Schwartz, Julia A. Kornfield, Robert H. Grubbs, Christian A. Sandstedt
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Publication number: 20100076554Abstract: The invention relates to novel intraocular lenses. The lenses are capable of post-operative adjustment of their optical properties, including conversion from single focal lenses to multifocal lenses.Type: ApplicationFiled: December 1, 2009Publication date: March 25, 2010Applicant: Calhoun Vision, Inc.Inventors: Christian A. Sandstedt, Jagdish M. Jethmalani, Shiao H. Chang
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Patent number: 7560499Abstract: Novel blends of photo-initiators and photo-absorbers are disclosed. By the proper selection of the type and amount of absorber and initiator used in a composition, it is possible to regulate the conditions under which photo-induced reactions occur. In a specific embodiment, blends of UV initiators and photoabsorbers are used to control the conditions under which UV initiated polymerization occurs.Type: GrantFiled: June 10, 2005Date of Patent: July 14, 2009Assignee: Calhoun Vision, Inc.Inventors: Jagdish M. Jethmalani, Shiao H. Chang, Robert H. Grubbs
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Patent number: 7414714Abstract: A method of correcting aberrations in an optical system by applying a light adjustable aberration conjugator layer to a component of the system, determining the nature of the aberration, applying radiation to the conjugator layer such as to change the refraction and/or shape of the conjugator layer to compensate for the aberration, and locking in the desired optical property.Type: GrantFiled: September 8, 2006Date of Patent: August 19, 2008Assignee: Calhoun Vision, Inc.Inventors: Ben C. Platt, Christian A. Sandstedt
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Publication number: 20080103592Abstract: The invention relates to a system for improving vision using a pair of intraocular lenses. A standard or light adjustable intraocular lens is combined with a light adjustable “piggyback” lens such that the “piggyback” lens corrects any vision deficiencies not addressed by the first lens.Type: ApplicationFiled: October 30, 2006Publication date: May 1, 2008Applicant: Calhoun Vision, Inc.Inventor: Robert K. Maloney
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Publication number: 20080086207Abstract: The invention relates to novel intraocular lenses. The lenses are capable of post-operative adjustment of their optical properties, including conversion from single focal lenses to multifocal lenses.Type: ApplicationFiled: October 12, 2007Publication date: April 10, 2008Applicant: CALHOUN VISION, INC.Inventors: Christian Sandstedt, Jagdish Jethmalani, Shiao Chang
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Publication number: 20080033547Abstract: The invention relates to a intraocular lens system having a flexible anterior lens accommodation material behind the lens. The accommodation material may comprise of one or more macromers, which, when polymerized, adjust the properties of the accommodation material. The anterior lens is flexible such that the curvature of the lens changes during accommodation. The anterior lens may be used alone or in combination with a posterior lens.Type: ApplicationFiled: April 20, 2007Publication date: February 7, 2008Applicant: CALHOUN VISION, INCInventors: Shiao Chang, Okihiro Nishi, Kayo Nishi, Jerry Kaeni, Ken Chuang
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Publication number: 20080027537Abstract: Embodiments of the invention involve intraocular lenses that are light adjustable to change a focal length of the lens after it has been implanted into a person or animal. The lens includes a layer of UV absorbent material located on a rear side, which is the side facing a retina. The lens may comprise a UV reducing rim that surrounds a peripheral portion of the lens, and reduces or blocks UV light from striking the retina.Type: ApplicationFiled: July 26, 2006Publication date: January 31, 2008Applicant: Calhoun Vision, Inc.Inventors: Mario Gerlach, Christian A. Sandstedt, Shiao H. Chang
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Patent number: 7281795Abstract: The invention relates to novel intraocular lenses. The lenses are capable of post-operative adjustment of their optical properties, including conversion from single focal lenses to multifocal lenses.Type: GrantFiled: March 18, 2005Date of Patent: October 16, 2007Assignee: Calhoun Vision, Inc.Inventors: Christian A. Sandstedt, Jagdish M. Jethmalani, Shiao H. Chang
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Patent number: 7241009Abstract: Methods and materials are disclosed for the production of optical elements, in particular intraocular lenses (IOL) that incorporate any amount (0 to 99%) of refraction and/or shape modulating compound into a substantially crosslinked first polymeric matrix. The materials produced according to the inventive methods exhibit certain rheological parameters useful in defining medical lenses. These medical lenses have the ability to change their refractive power via changing the refractive index and/or by altering the shape by stimulus induced polymerization.Type: GrantFiled: June 17, 2004Date of Patent: July 10, 2007Assignee: Calhoun Vision, Inc.Inventors: Julia A. Kornfield, Robert H. Grubbs, Shiao H. Chang, Jagdish M. Jethmalani
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Publication number: 20070129802Abstract: The present invention relates to a method for creating shaped implants, such as intraocular lenses in vivo, as well as the novel implants themselves. Utilizing the method of the invention, it is possible to create an implant in vivo and to adjust either the physical properties such as refractive index, viscosity, etc., mechanical properties such as modulus, tensile strength, tear, etc., or the shape of the implant by noninvasive means. For example, using the method of the patent it is possible to create an intraocular lens in vivo and then adjust the shape and power of the lens through no invasion means. The novel implants are also addressed in this application.Type: ApplicationFiled: November 10, 2006Publication date: June 7, 2007Applicant: CALHOUN VISION, INC.Inventors: Jagdish Jethmalani, Shiao Chang, Robert Grubbs, Julia Kornfield, Daniel Schwartz, Christian Sandstedt, F. Christ