The M-DI47.50 Iris Diaphragm has a continuously variable 5 to 49 mm aperture for applications including adjusting the numerical aperture of a lens, aligning a laser beam, or controlling the intensity of a diffuse beam. It may also be used as a baffle to reduce spurious reflections and scattered light. Designed for smooth adjustment and the best possible aperture shape, each iris consists of an array of curved leaves whose orientation is determined by the relative position of two rings. Rotating the outer knurled ring adjusts the aperture without risk of obstructing the beam path. The M4-threaded stud allows the iris diaphragm to be mounted on a metric SP or MSP Post. These iris diaphragms are also compatible with X26 Rail System components.

M-DI47.50 Iris膜片具有5至49毫米的连续可变孔径，适用于调整透镜的数值孔径、对准激光束或控制漫射光束的强度。它也可以用作挡板，以减少虚假的反射和散射光。为了平滑调整和最佳的孔径形状，每个虹膜由一系列弯曲的叶子组成，其方向由两个环的相对位置决定。旋转外滚花环可以调节孔径，不会有阻碍光束路径的危险。m4螺纹螺栓允许虹膜隔膜安装在公制SP或MSP柱上。这些虹膜隔膜也与X26轨道系统组件兼容。