Rotary and Linear Shutters are used on a wide range of handheld and flight rated thermal imaging devices. Particularly with devices that operate in proximity to the body (head mounted, rifle mounted or hand-held), new requirements tend to incorporate a noise specification. From a military perspective, noise has become a critical issue as these shutters operate in areas where an enemy may be in close proximity.
Piezo Based Rotary & Linear Shutters for Non-Uniformity Correction excel at optimizing SWaP (Size, Weight & Power) while operating silently.
LF14 Linear filter changer
Industry – Defence Optronic
Nanomotion’s LF14 Linear Filter Changer is designed to meet the most challenging operating conditions of optical systems. Based on the S787 NUC Shutter, the LF14 replaces the solid blade with a lens holder. The LF14 operates linearly with a direct drive Edge motor, providing the lightest weight configuration while maintaining the closest back working distance.
The LF14 is provided with a blade that can accommodate different filter diameters and is capable of moving 14mm in 100 msec. The filter housing is supported by the Edge-Actuator bearing structure on one side and an outboard shaft bearing on the other, to eliminate any deflection or vibration.
Linear NUC Shutters
Industry – Defence Optronic
Nanomotion’s S787 series of NUC shutter is designed to meet the most challenging operating conditions of infrared imaging systems. The S787 shutter operates linearly with a direct drive EDGE motor, providing the lightest weight configuration while maintaining the closest proximity to the FPA. The S787 series is provided with a 17mm x 15mm leaf that is capable of moving 15mm in 100mseconds. The moving blade is supported by the Edge – Actuator bearing structure on one side and an outboard shaft bearing to eliminate any blade deflection and vibration.
TECHNICAL SPECIFICATIONS
Mechanical Weight: 15 gr
Dimensions:
Aperture area: 14.7 x 17.0 mm
Moving mass of 1.5 gr
Back working distance: 2.2 mm
PERFORMANCE
Stroke time: 150msec
Operation from -40 °C to 70 °C
Vibration: 10 g rms (holds
position without power)
Shock: 300 g, any orientation
Position holding @ power off:
10g linear acceleration
MTBF: 50,000 hours
ELECTRICAL
Drive voltage: 4.2V
Power consumption at idle:
Max: 500mW
Idle: 8mW (keeps position)
RS08B Rotary NUC Shutter
Industry – Defence Optronic
The RS08B is the next generation rotary shutter from Nanomotion, utilising a silent motor drive, in an 8mm x 20mm package. The RS08B is designed to operate from a 3.3v battery and supports a wide range of angular travel up to 120°.
The RS08B has an internal, magnetic absolute position sensor, allowing full travel between soft stops, after calibration. The connector in the base of the shutter provides flexibility for users to configure various cable lengths and mating connections to a device.
Shutter blades can be configured based on specific requirements, incorporating the physical hard stop into the blade. This allows for the entire shutter body to be self-contained as a stand-alone unit.
Specifications
Mechanical Specifications
Mechanical
Performance
Electrical Specifications
Performance Specs
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