Patents by Inventor Daniel M. Topa

Daniel M. Topa 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).

  • Method of wavefront sensing by mapping boundaries of a lenslet array onto a grid of pixels
    Patent number: 7335867
    Abstract: A system and method of wavefront sensing with a Shack-Hartmann wavefront sensor precisely locates focal spots on a detector array, and determines the location of the lenslet array with respect to the detector array.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: February 26, 2008
    Assignee: Wavefront Sciences, Inc.
    Inventor: Daniel M. Topa
  • System and method of wavefront sensing
    Patent number: 7122774
    Abstract: A system and method of wavefront sensing with a Shack-Hartmann wavefront sensor precisely locates focal spots on a detector array, and determines the location of the lenslet array with respect to the detector array.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: October 17, 2006
    Assignee: WaveFront Sciences, Inc.
    Inventor: Daniel M. Topa
  • System and method of wavefront sensing for determining a location of focal spot
    Patent number: 7078665
    Abstract: A system and method of wavefront sensing with a Shack-Hartmann wavefront sensor precisely locates focal spots on a detector array, and determines the location of the lenslet array with respect to the detector array.
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: July 18, 2006
    Assignee: Wavefront Sciences, Inc.
    Inventor: Daniel M. Topa
  • Method and system for sensing and analyzing a wavefront of an optically transmissive system
    Patent number: 6819413
    Abstract: An enhanced dynamic range wavefront sensing system includes a light source disposed on a first side of an optically transmissive device, a wavefront sensor disposed on a second side of an optically transmissive device, a relay imaging system disposed between the optically transmissive device and the wavefront sensor, and means for adjusting a distance between the light source and the optically transmissive device. Beneficially, the relay imaging system includes a range-limiting aperture to insure that the wavefront sensor never goes out of range so that a feedback system can be employed to move the light source one focal length away from the optically transmissive device.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: November 16, 2004
    Assignee: Wavefront Sciences, Inc.
    Inventors: Daniel R. Neal, Richard J. Copland, Ron R. Rammage, Daniel M. Topa, Daniel R. Hamrick
  • System and method of wavefront sensing
    Publication number: 20040130705
    Abstract: A system and method of wavefront sensing with a Shack-Hartmann wavefront sensor precisely locates focal spots on a detector array, and determines the location of the lenslet array with respect to the detector array.
    Type: Application
    Filed: July 9, 2003
    Publication date: July 8, 2004
    Inventor: Daniel M. Topa
  • Method and system for sensing and analyzing a wavefront of an optically transmissive system
    Publication number: 20040041978
    Abstract: An enhanced dynamic range wavefront sensing system includes a light source disposed on a first side of an optically transmissive device, a wavefront sensor disposed on a second side of an optically transmissive device, a relay imaging system disposed between the optically transmissive device and the wavefront sensor, and means for adjusting a distance between the light source and the optically transmissive device. Beneficially, the relay imaging system includes a range-limiting aperture to insure that the wavefront sensor never goes out of range so that a feedback system can be employed to move the light source one focal length away from the optically transmissive device.
    Type: Application
    Filed: August 29, 2003
    Publication date: March 4, 2004
    Inventors: Daniel R. Neal, Richard J. Copland, Ron R. Rammage, Daniel M. Topa, Daniel R. Hamrick
  • Dynamic range extension techniques for a wavefront sensor including use in ophthalmic measurement
    Publication number: 20030193647
    Abstract: An ophthalmic error measurement system includes a projecting optical system delivering light onto a retina of an eye, a pre-correction system which compensates a light beam to be injected into the eye for aberrations in the eye, the pre-correction system being positioned in between the projecting optical system and the eye, an imaging system which collects light scattered by the retina, and a detector receiving light returned by the retina from the imaging system. Use of the pre-correction system allows the end-to-end aberrations of the ocular system to be analyzed. The use of a pre-correction system also allows use of a minimized spot size on the retina, and all of its attendant advantages.
    Type: Application
    Filed: April 21, 2003
    Publication date: October 16, 2003
    Inventors: Daniel R. Neal, Darrell J. Armstrong, Daniel M. Topa, Richard J. Copland
  • Dynamic range extension techniques for a wavefront sensor including use in ophthalmic measurement
    Patent number: 6550917
    Abstract: An ophthalmic error measurement system includes a projecting optical system delivering light onto a retina of an eye, a pre-correction system which compensates a light beam to be injected into the eye for aberrations in the eye, the pre-correction system being positioned in between the projecting optical system and the eye, an imaging system which collects light scattered by the retina, and a detector receiving light returned by the retina from the imaging system. Use of the pre-correction system allows the end-to-end aberrations of the ocular system to be analyzed. The use of a pre-correction system also allows use of a minimized spot size on the retina, and all of its attendant advantages.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: April 22, 2003
    Assignee: WaveFront Sciences, Inc.
    Inventors: Daniel R. Neal, Darrell J. Armstrong, Daniel M. Topa, Richard J. Copland