Threaded Manual Beam Shutter

Shutter Selection Guide
Diaphragm	Single-Blade
Ø1/4", Ø1/2", and Ø1" Motorized	Ø0.29" Manual
	Ø1/2" and Ø1" Motorized

Click to Enlarge
The front of the SM1SH1 shown in the open (left) and closed (right) positions.

Click to Enlarge
SM1SH1 Manual Beam Shutter Mounted in a CP33 Cage Plate

Click to Enlarge
LMR1 Fixed Lens Mount Being Used to Post Mount the SM1SH1 Manual Beam Shutter

Features

• Open/Close Lever Positions
• Internal and External SM1 Threading (1.035"-40)
• SM1 Lens Tube System Compatible
• Clear Aperture when Open: 7.2 mm (0.29")
• Shutter is Completely Light-Tight

The SM1SH1 Manual Beam Shutter provides a convenient, labeled switch for propagating a beam through an optical assembly. The lever-actuated shutter is firmly held in position with a precision detent mechanism at both the opened and closed locations. The shutter has a Ø0.29" (Ø7.2 mm) clear aperture when open. 

This aluminum shutter incorporates internal SM1 threads (1.035"-30) on one side and external SM1 threads on the other, making it ideal for use with our lens tube systems. The internally threaded side of the shutter (see the Front View above) has a metal plate enclosing the shutter mechanism, while the externally threaded side has exposed Delrin. It is recommended to orient the metal plate towards the incoming beam.

Please note that we do not recommend using the SM1SH1 shutter within a 30 mm cage system, as the cage rods will interfere with the shutter's lever actuator. If it is used in a cage system, we recommend placing the shutter at the end of a branch, as shown in the photo above.