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NS35B 35mm Optical Shutter

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Overview


The Uniblitz NS35B is a 35mm-aperture bi-stable optical shutter utilizing our patented N-CAS® technology. The NS35B’s simple design provides maximum clearance around the aperture, and a machined flat surface makes for its easy integration into virtually any system. The NS35B has an overall diameter of 3.18 inches, and an electronic synchronization is available.

Bi-stable shutter devices, like the NS35B, require no power to hold the blades in either the open or closed state.

 

Key Features


  • 35mm aperture
  • Bi-stable operation
  • Only two unique moving parts
  • Slim, low-profile form-factor
  • RoHS Compliant
  • Transfer time on opening: 12.0 milliseconds
  • Total opening time: 18.5 milliseconds
  • Can be configured for the VED24, VDM1000, or ED12DSS shutter drivers.

Specifications


For additional technical information please see the NS35B Optical Shutter Datasheet.


Coil Resistance Pulse Voltage to Open Hold Voltage
6 OHMS 1 +10.7 VDC 2 N/A

 

Weight Operating Temp. Max. Opening Bounce Max. Closing Bounce Max. Freq. of Operation 3 Number of Shutter Blades
2.64 oz (0.07 kg) 0 - 80 °C 15% 5% 2.0 Hz / 5.0 Hz 5

 

1 Two 12 OHM coils wired in parallel
2 Peak voltage as provided by the VED24 Driver
3 (Continuous/Burst) Continuous frequency rating specified at shutter’s minimum exposure pulse. Burst frequency rating specified for four (4) seconds maximum with one (1) minute minimum between bursts.

 

Electronic Synchronization System


The synchronization system for NS shutter devices incorporates a small magnet mounted to the driving mechanism and a Hall effect sensor. When the device achieves approximately 80% of full open, the magnet causes the Hall effect sensor to change state, producing a signal to indicate that the shutter has switched to the active state. Shown to the left is the NS series shutter schematic which incorporates the electronic synchronization system. There is no connection to the designated synchronization pins when an electronic sync. is not selected.

Uniblitz NS Series Electronic Sync Schematic Diagram

 

Shutter Timing


timing-diagram-white


The question regarding enhancement of shutter speed with the application of user supplied lubricants has been repeatedly asked. It is our experience that lubricating the shutter blades will actually slow the shutter down and eventually render the shutter inoperable. Under no circumstances should any type of lubricant be applied to the shutter blade area.

 

NS35B (w/ VDM1000 and Teflon® coated blades) Time (msec.)
O - A:     Delay time on opening after current applied 6.5
A - C: Transfer time on opening 12.0
O - C: Total opening time 18.5
C - E: Min. dwell time with min. input pulse 7.0
B - F: Min. equivalent exp. time 4.0
D - E: Delay time on closing after current applied 19.0
E - G: Transfer time on closing 12.0
A - G: Total window time 31.0
MET: Min. exposure time 20.0
TEP: Typical exposure pulse >20.0

 

Technical Drawing


Uniblitz NS35B Technical Drawing

Downloads


Documentation
NS35B Datasheet Download

 

3D Models
NS35B 3D Outline Model (STEP included in ZIP) Download

Additional information

Weight 1 lbs
Dimensions 5 x 6 x 3 in
Driver Compatibility

, ,

Blade Option

,

Electronic Sync.

,

For use in Vacuum

,

Flying Leads

No, Yes