NS45B 45mm Bi-stable Shutters

Overview
Vincent Associates, the manufacturer of UNIBLITZ® shutters has again endeavored to provide an even more reliable
shutter product for the Photonics industry with the introduction of the 45mm aperture version of the patented N-CAS®
(Non-Contact Actuation System) shutter, the NS45B (additional patents pending on this technology). The device's
reliability has been enhanced by significantly reducing the number of moving parts. In the 45mm aperture bi-stable
version, the NS45B, there are a total number of six moving parts, five of which are the blades themselves! The
activating mechanism is non-contact and has shown to increase its reliability through testing over similar shutter
designs. Presently the NS45B is the largest aperture available in the NS series.
The NS45B is a bi-stable shutter, no power is required to hold the shutter in either the open or closed state. Power is
required only to change the state of the device. There are no dimensional changes associated with this configuration
and it can be driven by the VDM1000.
Another advantage of the NS45B is the ease of which it can be installed in a customer application since the only
protruding part from the surface of the shutter are the actuator coils. The remainder of the structure is thin, flat and has
a small diameter to allow easy integration without the concern for external moving parts. The NS45B can be actuated
by user supplied driver circuits or the VDM1000, a new driver built specifically to take advantage of the NS45B's low
power requirements. This new driver will permit the NS45B to operate with virtually identical open and close times.
When gating high intensity light sources, the NS45B can be equipped with reflective blades. This option protects the
shutter blades from the light source's damaging effects by reflecting the energy away from the blade surface. Three
standard reflective blade options are available - "S" (reflective stainless steel), "Z" (AlSiO) and "ZM" (AlMgF2).
The standard shutter is terminated by 18" flying leads, however the device can also be terminated to a 5-pin male
connector with 6 inch cable assembly. The 510A cable is required when controlling the NS45B with the VDM1000. This
cable is included with the VDM1000. There is an access slot located above the actuator that will allow for manual
operation of the shutter if so desired.

FEATURES
• Patented N-CAS® actuator system radically reduces moving parts.
• Additional patent applications pending on this technology.
• Bi-stable design only requires power when changing state.
• Simple design provides maximum clearance around the aperture.
• Machined flat surfaces for easy integration into virtually any system.
• Small form factor, 45mm aperture, 3.915-inch overall diameter.
• Reflective blades available for high energy light sources.
• Terminated to 6-inch 5-pin male connector harness.
• Uni-stable version is available by special order and can be configured normally open or normally closed.

Electrical
COIL RESISTANCE1 EACH COIL

PULSE VOLTAGE TO OPEN

12 OHMS

36 VDC