|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||606/5 ; 606/11 ; 219/1216 ; 219/12168|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 125 인용 특허 : 15|
In the context of ultraviolet-laser sculpting of the cornea to achieve optical correction through a newly shaped anterior surface, the invention subjects the laser beam to certain shaping and homogenizing operations prior to any attempt to specially characterize the beam for a particular sculpturing procedure. In a preferred embodiment, the shaping and homogenizing operations present a tolerably homogeneous beam of enlarged dimension, so that specialty-characterizing may proceed on a dimensional scale that is greater than the corresponding dimension of u...
Apparatus for performing an ablating sculpture of the anterior surface of the cornea of an eye, comprising an excimer laser for pulsed emission of ultraviolet radiation in a beam of rectangular section wherein intensity distribution is generally uniform in the longer-dimensional direction and is generally Gaussian about the center of its shorter-dimensional direction; and optical elements in a path of beam transmission to the eye, including means for centering the beam on the viewing axis of the eye and for shaping the beam to a circle wherein said gener...