首页> 外国专利> Laser target speckle eliminator

Laser target speckle eliminator

机译:激光目标除斑器

摘要

An apparatus for eliminating the phenomenon of speckle with regard to laser light reflected from a distant target whose roughness exceeds the wavelength of the laser light. The apparatus includes a half plate wave member, a first polarizing beam splitter member, a totally reflecting right angle prism, and a second polarizing beam splitter member, all of which are in serial optical alignment, that are used in combination to convert a linearly (i.e., vertically) polarized light beam, which is emitted by a laser having a known coherence length, into two coincident, orthogonally polarized, beams that are not coherent with each other, and that have an optical path difference which exceeds the known coherence length of the emitting laser, to eliminate the speckle.
机译:一种用于消除关于从远距离目标反射的激光的斑点现象的方法,该远距离目标的粗糙度超过激光的波长。该装置包括半板波元件,第一偏振分束器部件,全反射直角棱镜和第二偏振分束器部件,它们全部以串联光学对准方式使用,它们组合使用以线性转换(由具有相干长度已知的激光发射的偏振光束,变成两个彼此不相干且光程差超过已知相干长度的重合的正交偏振光束。发射激光,以消除斑点。

著录项

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号