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1. 发明申请

WO2011039500A1 LASER ILLUMINATOR 审中-公开
标题翻译：激光照明器
公开(公告)号：WO2011039500A1
公开(公告)日：2011-04-07
申请号：PCT/GB2010/001759
申请日：2010-09-21
申请人： QINETIQ LIMITED , GALBRAITH, Philip , JONES, David Caradoc
发明人： GALBRAITH, Philip , JONES, David Caradoc
IPC分类号： G02B6/00 , F41G1/35 , H01S3/00 , F21K99/00 , H01S5/02
CPC分类号： H01S3/005 , G02B6/4296 , H01S5/005
摘要： A long range laser illuminator is disclosed that is suitable for providing illumination for camera systems at ranges up to approximately 20km. The illuminator incorporates a diverger that allows for a compact, low F-number optical arrangement that improves eye safety by reducing the power density across a primary optical element, such as a spherical or parabolic mirror. The diverger may be located at an end of an optical fibre feed, or between a pair of optical fibres. The diverger may incorporate a diffuser, such as a "top hat" diffuser. The optical fibre feeds may be highly multi mode, to provide for a more even illumination. The illuminator incorporates means for altering a focus of the output light beam, to allow an illuminated spot size to be altered. The illuminator is particularly suitable for use at night, where it may be used alongside a camera system.
摘要翻译：公开了一种适用于在距离大约20km的范围内为相机系统提供照明的长距离激光照明器。照明器结合了一个分散器，其允许紧凑的低F值光学布置，其通过降低主要光学元件（例如球形或抛物面镜）上的功率密度来改善眼睛的安全性。分路器可以位于光纤馈送端或一对光纤之间。分流器可以包括扩散器，例如“顶帽”扩散器。光纤馈送可以是高度多模式，以提供更均匀的照明。照明器包括用于改变输出光束的焦点的装置，以允许改变照明光斑尺寸。照明器特别适合在夜间使用，可以在相机系统旁边使用。

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