SM1D12D In Stock

The SM1D12D by ThorLabs is the ideal solution for those in need of a compact iris diaphragm for their optical systems. This SM1 ring-actuated iris diaphragm is compatible with Ø1" lens tubes, 30 mm cage systems, and other SM1-threaded accessories, making it a versatile addition to any system. The SM1D12D is perfect for use in tight spaces where standard level-activated iris or threaded-activated irises are not easily accommodated. Additionally, it is highly useful in cage systems because it prevents interference between a lever actuator and the surrounding cage rods.

Designed with a ring actuator, the SM1D12D provides an intuitive, smooth feel, and the aperture size can be easily locked with a setscrew. The iris on one side is internally threaded and the other side is externally threaded, allowing for simple integration into systems that already exist using lens tube components that are standard. This iris diaphragm is perfect for cage system integration where a small amount of alignment is needed. To ensure the precise optimization of the centration of the iris hole to the optical axis of the cage system, it is recommended to mount the iris on an XY translation mount. Additionally, the SM1D12D has a maximum aperture of Ø12.0 mm and black spring steel leaves.