Melles Griot Stepper Shutters are optimized for compact visible and thermal imaging, making them ideal for applications such as night vision cameras. The controlled speed/motion of the stepper drive minimizes blade stop impact, for long life, low wear, and low noise. The shutters are designed to withstand harsh environmental conditions, including shock, vibration and extreme temperatures typical in transportation and field portable applications. The geared stepper motors have an optional compact integral controller (SMi) that provides drive and motion control through a single TTL signal line.
The SMD-001 stepper motor has a direct drive to the blade and an integral controller using a single TTL line for control. Movement of the SMD-001 blade is almost silent in operation.