The 77854 Monochromator Fiber Adapter hold the rectangular end of the "Large Slit" Fiber Bundles at the input of Model MS257™ Oriel Monochromators. The fiber replaces the slit. This fiber adapters does not require a fixed slit holder for mounting. It couples directly to the aperture of the monochromator. When used at the input, much of the light from the fiber overfills the grating and is lost. This is especially true for glass bundles. Even so, the simplicity and convenience of this technique ensures its application when there is plenty of light, and stray light is not a major concern. When this isn’t the case, use the 77358 Adapter. When you use the 77854 fiber slit at the output, the bundle accepts all the light, which falls on the "fiber slit." Be sure to choose a matching input fixed slit, or set the variable slit to match the "fiber slit."

77854单色仪光纤适配器的矩形的“大缝”输入的纤维束模型MS257™凸肚单色仪。纤维取代了狭缝。这种纤维适配器不需要固定的狭缝支架来安装。它与单色器的孔直接相连。当在输入端使用时,来自光纤的大部分光线会超过光栅并丢失。对于玻璃束来说尤其如此。尽管如此,这种技术的简单性和便捷性确保了它在光线充足时的应用,而杂散光并不是主要问题。如果不是这样,使用77358适配器。当您在输出端使用77854光纤狭缝时,束接受所有落在“光纤狭缝”上的光线。一定要选择匹配的输入固定狭缝,或设置可变狭缝以匹配“纤维狭缝”。