The 71446 Electronic Safety Shutter consists of a 2 Inch Series flanged enclosure that houses the blade, and a stand-alone shutter drive for 115 and 220 V operation. The enclosure has a female-flange on one end and a male-flange on the other. The male end couples directly to the light source condenser and the female end accepts any male flanged accessory. The clear aperture for a through beam 1.9 inches (48 mm) for 2 Inch Series condensers. You can also rod mount the shutter in the light path. A 1/4-20 tapped hole in the bottom accepts our optical rods. The shutter drive has an open/close switch and a TTL or contact closure input so you can control the shutter via a PC. Note: a computer cable is not supplied - a standard LPT cable is needed for interfacing. These shutters also have an interlock socket adapter so you can wire one to your lab door and have the shutter close every time the door opens. The rise/fall time of the blade is ~0.1 second (see Fig. 1), but there is a delay before the blade starts to close the aperture. The front of the supply has an LED to indicate whether the shutter is open or closed. A 5 ft. (1.5 m) power cable connects the shutter to the driver. For faster open and close times, use the shutter at the focus of a lens and with a small aperture. You can then recollimate the output with a second lens. If output intensity is not critical, you don’t have to focus and then recollimate the beam, just use an aperture between the condenser and the shutter.

71446电子安全快门由一个2英寸的带法兰的外壳组成，内置刀片，以及一个用于115和220 V操作的独立快门驱动器。外壳的一端是女性法兰，另一端是男性法兰。公端直接对光源冷凝器，母端接受任何公端法兰附件。2英寸系列冷凝器的孔径为1.9英寸(48毫米)。你也可以在光的路径上安装快门。底部一个1/4-20的抽头孔可以接收我们的光学棒。快门驱动器有开/关开关和TTL或接触闭合输入，所以你可以通过PC控制快门。注意:没有提供计算机电缆-接口需要标准的LPT电缆。这些百叶窗也有一个联锁插座适配器，这样你就可以把一个连接到实验室的门上，并且每次门打开时都要关上百叶窗。叶片的上升/下降时间为~0.1秒(如图1所示)，但在叶片开始闭合孔径之前存在延迟。电源前端有一个LED来指示快门是开着的还是关着的。一条5英尺(1.5米)长的电力电缆将快门与驾驶员连接起来。为了更快的开启和关闭时间，使用一个小光圈在镜头的焦点上的快门。然后，你可以用另一个镜头重新调整输出。如果输出强度不是很关键，你就不需要对焦，然后重新调整光束，只需要在冷凝器和快门之间使用光圈。