초록 ▼

An apparatus for ablating the surface of the cornea using a laser beam to correct the refractive of an eye to be operated having a laser source for emitting a laser beam having a non-uniform intensity distribution of Gaussian distribution and the like to one direction and a uniform beam intensity in

An apparatus for ablating the surface of the cornea using a laser beam to correct the refractive of an eye to be operated having a laser source for emitting a laser beam having a non-uniform intensity distribution of Gaussian distribution and the like to one direction and a uniform beam intensity in another direction, an ablation optical system for ablating the surface of the cornea by the laser beam emitted from the laser source, translational scanning device for scanning the laser beam in the direction of non-uniform intensity distribution, beam rotating device for rotating the laser beam emitted from the laser source round the optical axis in the ablation optical system, control device which controls the beam rotation by the beam rotating device whenever the laser beam is scanned in parallel by the scanning device.

대표청구항 ▼

An apparatus for operating on a cornea using a laser beam to correct a refractive error of an eye, comprising: a laser source for emitting a laser beam along an optical path, the laser beam having a non-uniform beam intensity distribution along a first axis and a uniform beam intensity along a secon

An apparatus for operating on a cornea using a laser beam to correct a refractive error of an eye, comprising: a laser source for emitting a laser beam along an optical path, the laser beam having a non-uniform beam intensity distribution along a first axis and a uniform beam intensity along a second axis; an optical system for irradiating the laser beam from the laser source onto a surface of the cornea, said optical system Comprising an ablation area confining means; scanning means for scanning the laser beam along the first axis; beam rotating means for rotating the laser beam about the optical path; and control means for controlling the beam rotating means whenever the laser beam is scanned by the scanning means; wherein the laser beam is rotated at substantially equal angular intervals, several times each ablation area confined by the ablation area confining means so as to ablate the cornea a uniform depth.