The 66290 Flange Step Down Adapter has a 3 Inch Series male flange on one end and a 1.5 Inch Series female flange on the other. It allows you to take advantage of our wider selection of 1.5 Inch Series accessories. Keep in mind that there will be power loss from a collimated beam due to the reduction in clear aperture from 2.7 to 1.3 inch. If the beam is focused, the step down can be made without power loss. You can then re-collimate the beam with a 1.5 Inch Series secondary focusing lens assembly.


66290法兰步进适配器一端有一个3英寸系列的凸缘，另一端有一个1.5英寸系列的凸缘。它允许您利用我们更广泛的选择1.5英寸系列配件。请记住，由于光圈从2.7英寸减少到1.3英寸，准直光束会造成功率损失。如果光束聚焦，就可以在不损失能量的情况下进行降压。然后你可以用1.5英寸系列的二次聚焦透镜组件重新校准光束。