Abstract: An ophthalmic laser apparatus comprises a laser light source; a light guide device, configured to guide a laser beam generated from the laser light source; a support bracket, configured to support a patient's head for the patient's eye to be perpendicular to a horizontal plane; a positioning device to acquire data related to a position of the patient's eye; a laser beam projector, the laser beam projector being movable to be aligned with the patient's eye and projecting the laser beam from the light guide device; a moving stand, configured to move the positioning device and the laser beam projector along an X direction, a Y direction, and/or a Z direction; and a controller, configured to control the laser light source to irradiate the laser beam and to control the laser beam projector to project the laser beam toward the patient's eye.

Abstract: A method and a system for localizing at least one circular object in a video frame captured by an image capture unit are disclosed. The method includes the steps of: A. performing edge detection to obtain a plurality of image edge points in the video frame; B. extracting a contour set of image contours by linking neighboring edge points; C. generating a plurality of circle samples from the extracted contour set by a structural sampling process; and D. localizing the at least one circular object from the generated circle samples by calculating a respective fitness score for each of the circle samples to measure the supporting evidence of the image edge points on a neighborhood of each of the circle samples, and by choosing the circle sample(s) whose fitness score(s) is/are greater than a threshold value as the circular object(s) found in the video frame.

Abstract: This invention is related to refractive eye surgery and specifically regarding guiding a laser beam through free space using a set of rotatable mirrors to guide said laser beam into a hand piece module that converts the laser beam into a two dimensional random overlapping scanning parallel laser beam that is delivered to the eye for ablation of cornea tissue to reshape the cornea of the eye. The rotating mirror set module allows a hand piece having an eye stabilization and distance control unit to be positioned by the surgeon onto a patient's eye for performing the surgery.