The 77258 Flanged Focusing Lens Assembly is a simple lens holder frequently used for focusing the output of a collimated source onto a monochromator. It features precise 2 mm X and Y adjustments, has a large 1.38 inch (35 mm) clear aperture, and has a 1.5 Inch Series female flange for direct coupling to Oriel instruments. It was designed as an alternative for those who don’t need a lens holder with focus adjustment or an integral filter holder and manual shutter


77258法兰聚焦透镜组件是一个简单的透镜支架，经常用于将对准光源的输出聚焦到单色器上。它的特点是精确的2毫米X和Y调整，有一个大1.38英寸(35毫米)的光圈，并有一个1.5英寸系列的凸缘直接连接到Oriel仪器。它是为那些不需要调焦或整体滤镜支架和手动快门的人而设计的