Eyetracker and method of use
February 10, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesOptically pumped laser amplifiers Method of energizing a material Double Purkinje eye tracker Stabilized visual system Laser surgery Ophthalmic surgical laser apparatus Optical system for surgical ophthalmic laser instrument Method and apparatus for forming an image of the ocular fundus Laser surgical operating method and apparatus Laser device and method InventorsAssigneeApplicationNo. 07/154859 filed on 02/10/1988US Classes:606/4, Ophthalmic351/210, Using photodetector600/558Eye or testing by visual stimulusExaminersPrimary: Jaworski, Francis J.Assistant: Manuel, George Attorney, Agent or FirmInternational ClassesA61B 3/113 (20060101)A61F 9/008 (20060101) A61F 9/007 (20060101) A61F 9/00 (20060101) A61B 17/00 (20060101) AbstractAn eyetracker for moving the path of a laser beam in response to patient eye movement comprises a visual light source on which the patient can fixate to bring the visual axis of the eye into a reference alignment with the optical axis of the light source. A laser source, having its beam coaxially aligned with the optical axis of the light source, cuts a mark onto the cornea of the eye when the eye is in the reference alignment. An infrared optical system monitors movement of the mark to generate an error signal which is proportional to any movement of the mark out of the reference alignment. Means are also provided by the eyetracker to move the path of the laser beam back into the reference alignment to reduce the error signal to a null.Other References
Field of SearchEYE EXAMINING OR TESTING INSTRUMENTFor fusion and space perception testing (e.g., stereoscopic vision) Of abnormal muscular functioning Eye exercising or training type Having means to detect proper distance or alignment (i.e., eye to instrument) Including eye movement detection Using photodetector | |
