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特色故事

滤光片的方向

2024年2月7日 作者: IDEX Health & Science

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Semrock 产品具有很好的性能,您不用担心损坏滤光片,就可容易地将其安装在显微镜的滤镜盒、滑块和滤光片转轮中。为获得更好性能、增加透射能力、尽量消除自发荧光,应一直让光照射在滤光片的特定表面,即按照正确方向把滤光片安装到显微镜中,下文描述了安装不同类型的滤光片的正确方向。

已装配边框的带指示方向的激发片和发射片

Semrock 的激发片和发射片都装配在带箭头的金属框中(见下图),箭头方向与光路中光的方向一致。对于显微镜应用,具体如下:激发片的箭头方向是从光源指向二向色镜;发射片的箭头方向是从二向色镜指向眼睛或相机;二向色镜有反射镀膜的一面正对激发片或光源和样品。

二向色镜分束镜极少装配在边框中,请查看以下指南。

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二向色镜和其他未装配的滤光片的安装方向

二向色镜分束镜和其他未装配的无边框的滤光片都有特征性的方向标记,通过这些标记,可以找出镀膜面,需要迎光照射来的方向。方向性的标记(光刻、开槽雕刻线、标记黑点等)通常在滤光片的表面或侧边,标记为箭头(^),这些标记在下图中展示,可作为对应的方向指导。

  • Semrock 商标: 商标面正对着入射光。
  • 线: 在滤光片的某一面的下方有刻线,刻线的面正对着入射光。稍微倾斜一定角度能更容易地看清刻线。
  • : 在滤光片的某一面有一个小点,小点的面正对着入射光。稍微倾斜一定的角度能更容易地看清小点。
  • 箭头: 在滤光片的侧边,标记为箭头(^),箭头的方向就是光行进的方向。当观察者面对接受入射光的表面时,箭头应该指向远离观察者的方向。
  • 注意: 很多二向色镜分束镜都是双面镀膜,请使用以上指南来正确安装滤光片,镀膜面对着光照射进来的方向!如遇到困难。请联系 Semrock 获取帮助。

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