| 摘要 |
<p>The present invention relates to a laser warning device. In a military connection, such devices have the task to register laser radiation from e.g. laser rangefinders or laser designators and by a warning signal make clear to the illuminated person that laser illumination has occurred or continues. In addition to indicating this it is also desirable that the laser warning device is able to establish the direction of incidence. The present invention solves the raised problem by comprising a position sensitive detector or a position sensitive detector arrangement having a detector surface (1), that is protected from radiation that falls directly onto it, and a reflector (2). The reflector is designed to reflect towards said detector surface, while focusing (7) towards the line of intersection between the detector surface and a plane that is perpendicular to said surface and in which the direction of incidence for the incoming radiation lies, the radiation that falls on the laser warning device and is on the hole parallel to the plane of the detector surface. The latter is defined as diverging not more than ± 30° from said plane. Further, the radiation may come from an arbitrary angle within the detector plane, up to 360°. This leads to said arbitrary angle being determined by the position for the concentrated radiation energy.</p> |
