首页> 外国专利> Laser scanner for positioning a laser beam in an x-y field, based on electrically switching layers

Laser scanner for positioning a laser beam in an x-y field, based on electrically switching layers

机译:激光扫描仪,用于基于电开关层在x-y场中定位激光束

摘要

The present invention replaces galvo and non-galvo based laser scanners that are prior art. It allows a very precise deflection of a laser beam also high intensity in one or two spatial directions. It can realize the deflection angle in discrete, very fine steps with a repetition frequency of several GHz by means of a cascade of optical elements based on switching layers. It can work in two dimensions in an unspecified sequence any points in the clamped solid angle in temporal succession with the reflected laser beam. The quality of the beam is maintained by using e.g. sputtered switching layers. In this case, the layers are metallic in nature, or stacks of successive (partially) switching dielectric layers which, when switched, have a high reflectivity, or unswitched a high transmission. Other, fast-switching, reflective layers can also be used. The central component of the invention is a transmissive carrier medium into which the desired switching layers are aligned along the optical axis and perpendicular to it, and which are each slightly tilted by a tilt angle, such that the solder of the individual layers and the optical axis span a plane, but the solder eg moving away from the optical axis as you move from one layer to the next.
机译:本发明替代了现有技术的基于振镜和非振镜的激光扫描仪。它允许激光束在一个或两个空间方向上非常精确地偏转,并且强度很高。通过基于开关层的光学元件级联,可以以几GHz的重复频率以离散的非常精细的步长实现偏转角。它可以按未指定的顺序在二维空间中工作,与反射的激光束在时间上连续地夹住立体角中的任何点。光束的质量可以通过使用例如溅射的开关层。在这种情况下,这些层本质上是金属的,或者是相继的(部分地)切换介电层的堆叠,当切换时,该介电层具有高反射率,或者未切换时具有高透射率。也可以使用其他快速切换的反射层。本发明的中心部分是一种透射的载体介质,期望的开关层沿着光轴并垂直于该方向对准,并且每个开关层都稍微倾斜一个倾斜角,使得各个层的焊料和光学层轴跨过一个平面,但例如,当您从一层移到另一层时,焊料会从光轴移开。

著录项

  • 公开/公告号DE102017004574B4

    专利类型

  • 公开/公告日2019-02-14

    原文格式PDF

  • 申请/专利权人 THEOFILOS ELEFTHERIADIS;

    申请/专利号DE20171004574

  • 发明设计人 GLEICH PATENTINHABER;

    申请日2017-05-12

  • 分类号G02F1/29;G02F1;

  • 国家 DE

  • 入库时间 2022-08-21 11:45:32

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