Patents by Inventor Christian Sandstedt

Christian Sandstedt 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).

  • Patent number: 7798644
    Abstract: 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: Grant
    Filed: May 1, 2007
    Date of Patent: September 21, 2010
    Assignees: California Institute of Technology, The Regents of the University of California
    Inventors: Jagdish M. Jethmalani, Daniel M. Schwartz, Julia A. Kornfield, Robert H. Grubbs, Christian A. Sandstedt
  • Publication number: 20100076554
    Abstract: 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: Application
    Filed: December 1, 2009
    Publication date: March 25, 2010
    Applicant: Calhoun Vision, Inc.
    Inventors: Christian A. Sandstedt, Jagdish M. Jethmalani, Shiao H. Chang
  • Patent number: 7414714
    Abstract: 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: Grant
    Filed: September 8, 2006
    Date of Patent: August 19, 2008
    Assignee: Calhoun Vision, Inc.
    Inventors: Ben C. Platt, Christian A. Sandstedt
  • Publication number: 20080086207
    Abstract: 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: Application
    Filed: October 12, 2007
    Publication date: April 10, 2008
    Applicant: CALHOUN VISION, INC.
    Inventors: Christian Sandstedt, Jagdish Jethmalani, Shiao Chang
  • Publication number: 20080027537
    Abstract: 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: Application
    Filed: July 26, 2006
    Publication date: January 31, 2008
    Applicant: Calhoun Vision, Inc.
    Inventors: Mario Gerlach, Christian A. Sandstedt, Shiao H. Chang
  • Publication number: 20070260311
    Abstract: 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: Application
    Filed: May 1, 2007
    Publication date: November 8, 2007
    Inventors: Jagdish Jethmalani, Daniel Schwartz, Julia Kornfield, Robert Grubbs, Christian Sandstedt
  • Patent number: 7281795
    Abstract: 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: Grant
    Filed: March 18, 2005
    Date of Patent: October 16, 2007
    Assignee: Calhoun Vision, Inc.
    Inventors: Christian A. Sandstedt, Jagdish M. Jethmalani, Shiao H. Chang
  • Publication number: 20070129802
    Abstract: 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: Application
    Filed: November 10, 2006
    Publication date: June 7, 2007
    Applicant: CALHOUN VISION, INC.
    Inventors: Jagdish Jethmalani, Shiao Chang, Robert Grubbs, Julia Kornfield, Daniel Schwartz, Christian Sandstedt, F. Christ
  • Patent number: 7210783
    Abstract: 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: Grant
    Filed: June 18, 2002
    Date of Patent: May 1, 2007
    Assignees: California Institute of Technology, The Regents of the University of California
    Inventors: Jagdish M. Jethmalani, Daniel M. Schwartz, Julia A. Kornfield, Robert H. Grubbs, Christian A. Sandstedt
  • Publication number: 20070041007
    Abstract: 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: Application
    Filed: September 8, 2006
    Publication date: February 22, 2007
    Applicant: Calhoun Vision, Inc.
    Inventors: Ben Platt, Christian Sandstedt
  • Publication number: 20070035698
    Abstract: 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: Application
    Filed: June 16, 2006
    Publication date: February 15, 2007
    Applicant: CALHOUN VISION, INC
    Inventors: Jagdish Jethmalani, Daniel Schwartz, Julia Kornfield, Robert Grubbs, Christian Sandstedt
  • Publication number: 20060261502
    Abstract: A method and instrument to irradiate a light adjustable lens, for example, inside a human eye, with an appropriate amount of radiation in an appropriate pattern by measuring aberrations in the system containing the lens; aligning a source of the modifying radiation so as to impinge the radiation onto the lens in a pattern that corresponds to the aberration; and controlling the quantity of the impinging radiation whereby to decrease the aberration. The quantity of the impinging radiation is controlled by controlling the intensity and duration of the irradiation. The pattern is controlled and monitored while the lens is irradiated.
    Type: Application
    Filed: July 28, 2006
    Publication date: November 23, 2006
    Inventors: Ben Platt, Christian Sandstedt, James Ebel
  • Patent number: 7134755
    Abstract: The invention relates to a method of customizing lenses using an external stimulus such as light. Fine-tuning of the lens to match the precise optical requirements using the same lens is also possible. The lenses are self-contained and do not require the addition or removal of significant portions of the lens to achieve customization.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: November 14, 2006
    Assignee: Calhoun Vision, Inc.
    Inventors: Jagdish M. Jethmalani, Christian A. Sandstedt, Robert H. Grubbs
  • Patent number: 7119894
    Abstract: 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: Grant
    Filed: July 8, 2005
    Date of Patent: October 10, 2006
    Assignee: Calhoun Vision, Inc.
    Inventors: Ben C. Platt, Christian A. Sandstedt
  • Patent number: 7105110
    Abstract: A method and instrument to irradiate a light adjustable lens, for example, inside a human eye, with an appropriate amount of radiation in an appropriate pattern by measuring aberrations in the system containing the lens; aligning a source of the modifying radiation so as to impinge the radiation onto the lens in a pattern that corresponds to the aberration; and controlling the quantity of the impinging radiation whereby to decrease the aberration. The quantity of the impinging radiation is controlled by controlling the intensity and duration of the irradiation. The pattern is controlled and monitored while the lens is irradiated.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: September 12, 2006
    Assignee: Calhoun Vision, Inc.
    Inventors: Ben C. Platt, Christian A. Sandstedt, James A. Ebel
  • Publication number: 20060017990
    Abstract: 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: Application
    Filed: July 8, 2005
    Publication date: January 26, 2006
    Applicant: Calhoun Vision, Inc.
    Inventors: Ben Platt, Christian Sandstedt
  • Publication number: 20050195361
    Abstract: The invention relates to a method of customizing lenses using an external stimulus such as light. Fine-tuning of the lens to match the precise optical requirements using the same lens is also possible. The lenses are self-contained and do not require the addition or removal of significant portions of the lens to achieve customization.
    Type: Application
    Filed: March 30, 2005
    Publication date: September 8, 2005
    Inventors: Jagdish Jethmalani, Christian Sandstedt, Robert Grubbs
  • Publication number: 20050192563
    Abstract: A method and instrument to irradiate a light adjustable lens, for example, inside a human eye, with an appropriate amount of radiation in an appropriate pattern by measuring aberrations in the system containing the lens; aligning a source of the modifying radiation so as to impinge the radiation onto the lens in a pattern that corresponds to the aberration; and controlling the quantity of the impinging radiation whereby to decrease the aberration. The quantity of the impinging radiation is controlled by controlling the intensity and duration of the irradiation. The pattern is controlled and monitored while the lens is irradiated.
    Type: Application
    Filed: April 25, 2005
    Publication date: September 1, 2005
    Applicant: Calhoun Vision, Inc.
    Inventors: Ben Platt, Christian Sandstedt, James Ebel
  • Publication number: 20050187622
    Abstract: 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: Application
    Filed: March 18, 2005
    Publication date: August 25, 2005
    Applicant: CALHOUN VISION
    Inventors: Christian Sandstedt, Jagdish Jethmalani, Shiao Chang
  • Patent number: 6917416
    Abstract: 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: Grant
    Filed: February 23, 2004
    Date of Patent: July 12, 2005
    Assignee: Calhoun Vision, Inc.
    Inventors: Ben C. Platt, Christian A. Sandstedt