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    • 1. 发明申请
    • OPHTHALMOLOGICAL LASER SYSTEM AND OPERATING METHOD
    • 眼科激光系统和操作方法
    • WO2009146906A3
    • 2010-03-11
    • PCT/EP2009003980
    • 2009-06-04
    • ZEISS CARL MEDITEC AGREICH MATTHIASGREBNER DIETERKOCH ANDREASLEDERMANN JUERGENDICK MANFREDHANFT MARCO
    • REICH MATTHIASGREBNER DIETERKOCH ANDREASLEDERMANN JUERGENDICK MANFREDHANFT MARCO
    • A61F9/008A61B3/117
    • A61F9/008A61B3/1173A61F9/00838A61F2009/0087
    • It is known for the analysis of the eye lens, particularly in case of presbyopia, to couple the detection optical path into the processing optical path by means of a beam splitter in order to detect the laser light scattered back in the eye lens. Said detection is inaccurate, since the intensity of the light scattered back in the eye lens is very low due to the inherent properties of the eye lens. The invention seeks to enable the detection of the light scattered back in the eye lens at a higher level of accuracy. The use of a polarization beam splitter that selectively decouples the detection light onto the detector such that the same has a polarization direction that differs from the emitted illumination light, enables the detection of the light scattered back in the eye lens at a high level of accuracy, since stray light from reflections at optical components of the light path is suppressed. In the generating of photo disruptions or other incisions, the ray exposure of the retina may be reduced in that the incisions being furthest away from the laser are induced first such that laminar gas inclusions with an exposure time of at least 5 seconds result. In this manner the laser radiation propagated in the direction of the retina in further incisions are scattered and partially reflected such that the influence impinging upon the retina is reduced.
    • 眼透镜的分析,特别是与老花眼,它是由在加工光束路径中的光束分离器已知为耦合探测光路,以检测在眼睛透镜的反向散射激光。 这种检测是不准确的,因为在复眼透镜的反向散射光的强度是很低的,由于晶状体的固有特性。 本发明将使反向散射光的在眼睛晶状体的检测精度较高。 使用偏振光束分离器中,从而选择性地去耦所述检测器上的检测光,其具有从所述发出的照明光的偏振方向的不同,使得能够以高精确度的眼透镜的光的反向散射的检测中,由于杂散光从反射在光束路径的光学部件抑制 , 当生成光致破裂或其它切口,可以通过最远处被减少视网膜的辐射暴露从激光切口第一感应,并从而形成固态气体夹杂物的至少5秒的停留时间引起的。 其特征在于在视网膜激光辐射的方向的散射传播在其它切口和部分地反射,使得视网膜上的入射角减小通量。