The 77330 Focusing Lens Assembly is a useful accessory for Oriel Monochromators and Spectrographs. It re-images a source onto the instrument’s input slit, or images the monochromator output onto a detector, fiber or sample. It lacks X-Y image adjustment, so it is best used in arrangements where precision alignment is not required (e.g. large source and targets), or where the adjustments are already available (as in our Oriel Research Lamp Housings). The 77330 accepts any 1 inch (25.4 mm) diameter lens, but does not include the lens. The clear aperture is 0.8 inches (20 mm). The 77330 holds a single lens, housed inside a lens barrel with a focusing sleeve. A manual focusing lever moves the lens. Tapped holes in the lens barrel let you set the range of the lever adjust; this combination results in a total lens adjustment range of 2.9 inches (74 mm). The 77330 has a 1.5 Inch Series female and male flange so you can mount it directly to monochromators and other instruments. Beam paths are enclosed and optical axes are aligned. For most imaging applications, we recommend a 32 mm focal length lens, as shown in Fig. 2. The distance from the flange to the slit plane on our monochromators and spectrographs is 0.74 inch (19 mm). With a 32 mm focal length lens, the F/# of the focused beam is F/4.


77330聚焦透镜组件是光学单色器和摄谱仪的有用附件。它将一个源重新成像到仪器的输入狭缝上，或者将单色器输出到检测器、光纤或样品上。它没有X-Y图像调整，所以最好在不需要精确对齐的地方(例如，大源和目标)，或者已经有调整的地方(如我们的Oriel Research Lamp外壳)使用。77330接受任何1英寸(25.4毫米)直径的镜头，但不包括镜头。光圈为0.8英寸(20毫米)。77330装着一个单镜头，装在一个带有聚焦套的镜头桶里。一个手动聚焦杆移动镜头。镜头筒上的抽头孔让您设定杠杆调节范围;这种组合的结果是镜头的总调整范围为2.9英寸(74毫米)。77330有一个1.5英寸的内外法兰系列，所以你可以直接安装在单色器和其他仪器上。光束路径是封闭的，光轴是对齐的。对于大多数成像应用，我们建议使用32毫米焦距镜头，如图2所示。在单色仪和光谱仪上，从法兰到狭缝平面的距离是0.74英寸(19毫米)。使用32毫米焦距镜头，聚焦光束的F/#为F/4。