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    11.
    发明专利
    未知

    公开(公告)号：DE60104236D1

    公开(公告)日：2004-08-19

    申请号：DE60104236

    申请日：2001-04-05

    Applicant: ALCON INC

    Inventor： FREY RUDLPH W ,  BURKHALTER JAMES H ,  ZEPKIN NEIL ,  POPPELIERS EDWARD ,  CAMPIN JOHN ALFRED

    IPC: A61B3/10 ,  A61B3/103 ,  A61B3/15 ,  G01J9/00 ,  A61B3/04

    Abstract: An apparatus for determining aberrations of an eye includes a patient head rest allowing for positioning adjustment. The patient head rest is operable with an optical table having a base. The base includes a probe beam generating apparatus, probe beam directing optics which itself comprises a beam splitter; a mirror; and a lens. The probe beam directing optics is capable of directing a probe beam toward an eye of a patient positioned on the patient head rest. Video image components are provided and comprise a light source, a mirror; and a video camera. The video image components are capable of generating an image of an eye of a patient positioned on the patient head rest. Eye fixation components generate a target that the eye of a patient positioned on the patient head rest can view. The eye fixation components comprise a fixation target, a light source, a lens, and a mirror. Wavefront directing and analyzing components measure a wavefront emanating from the eye of a patient positioned on the patient head rest and determine aberrations of the eye that range from at least about + or - 1 diopters to at least about + or - 6 diopters. The wavefront directing and analyzing components include a lens; a mirror, a microlens array, a camera, and a data processor.

    13.
    发明专利
    未知

    公开(公告)号：ES2184445T3

    公开(公告)日：2003-04-01

    申请号：ES99918729

    申请日：1999-04-20

    Applicant: ALCON INC

    Inventor： LIANG JUNZHONG ,  BURKHALTER JAMES H

    IPC: G01B11/16 ,  A61B3/10 ,  A61B3/103 ,  A61B3/15

    Abstract: Optical characteristics of optical systems, such as the eye, are measured including vision defects of the eye using a collimated beam from a diode laser focused onto the anterior surface of the cornea of the eye for providing a finite source of secondary radiation on the retina of the eye, the image of which is close to a desired diffraction limited spot. The secondary radiation is reflected back from the retina as a reflected wavefront of radiation that passes through the eye and is directed onto a wavefront analyzer where distortions associated with the reflected wavefront are measured. By focusing on the cornea through a long focal length lens and thus converging the beam through a small angle, as opposed to typically focusing a collimated light onto the retina, the need for lenses or lens combinations, and the time required to adjust such to accommodate the differing vision of each patient is eliminated.

    15.
    发明专利
    未知

    公开(公告)号：DK1032809T3

    公开(公告)日：2007-05-14

    申请号：DK97948547

    申请日：1997-11-21

    Applicant: ALCON INC

    Inventor： FREY RUDOLPH W ,  ZEPKIN NEIL ,  BURKHALTER JAMES H ,  PAPPELIERS EDWARD ,  CAMPIN JOHN A

    IPC: A61F9/01 ,  G01M11/02 ,  A61B3/10 ,  A61B3/103 ,  A61F9/007 ,  A61F9/008 ,  G01J1/00

    Abstract: A system and method for objective measurement and correction of focusing optical systems comprising optics disposed in the path of the beam (18) which directs the beam through the focusing optical system, e.g., and eye (120) and focuses the beam at its rear portion (122). The beam is diffusely reflected back and a wavefront analyzer (26) is disposed in the path of the wavefront projected from the optics and calculates the distortions as an estimate of aberrations of the focusing optical system.

    Apparatus and method for objective measurements of optical systems using wavefront analysis
    18.
    发明专利
    Apparatus and method for objective measurements of optical systems using wavefront analysis 未知

    公开(公告)号：AU2985501A

    公开(公告)日：2001-11-15

    申请号：AU2985501

    申请日：2001-03-23

    Applicant: ALCON INC

    Inventor： FREY RUDOLPH W ,  CAMPIN JOHN ALFRED ,  POPPELIERS EDWARD ,  ZEPKIN NEIL ,  BURKHALTER JAMES H

    IPC: A61B3/10 ,  A61B3/103 ,  A61B3/15 ,  G01J9/00 ,  A61B3/107

    Abstract: An apparatus for determining aberrations of an eye includes a patient head rest allowing for positioning adjustment. The patient head rest is operable with an optical table having a base. The base includes a probe beam generating apparatus, probe beam directing optics which itself comprises a beam splitter; a mirror; and a lens. The probe beam directing optics is capable of directing a probe beam toward an eye of a patient positioned on the patient head rest. Video image components are provided and comprise a light source, a mirror; and a video camera. The video image components are capable of generating an image of an eye of a patient positioned on the patient head rest. Eye fixation components generate a target that the eye of a patient positioned on the patient head rest can view. The eye fixation components comprise a fixation target, a light source, a lens, and a mirror. Wavefront directing and analyzing components measure a wavefront emanating from the eye of a patient positioned on the patient head rest and determine aberrations of the eye that range from at least about + or - 1 diopters to at least about + or - 6 diopters. The wavefront directing and analyzing components include a lens; a mirror, a microlens array, a camera, and a data processor.

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