Thorlabs - Lever-Activated Threaded Iris

Item #	Compatible Lens Tube	Minimum Aperture	Maximum Aperture
SM05D5	Ø1/2" (SM05)	Ø0.7 mm (Ø0.03")	Ø5 mm (Ø0.20")
SM1D12	Ø1" (SM1)	Ø0.8 mm (Ø0.03")	Ø12 mm (Ø0.47")
SM2D25	Ø2" (SM2)	Ø0.8 mm (Ø0.03")	Ø25 mm (Ø0.98")
SM3D50	Ø3" (SM3)	Ø2 mm (Ø0.08")	Ø50 mm (Ø1.97")
SM1D12SZ	Ø1" (SM1)	Zero	Ø12 mm (Ø0.47")
SM1D12SS	Ø1" (SM1)	Ø0.9 mm (Ø0.03")	Ø12 mm (Ø0.47")

Thorlabs offers lever-actuated irises with compatible lens tube threading for use with our lens tube systems and SM-threaded mounts and cage systems.

In addition, Thorlabs offers a line of post-mounted irises, threaded ring-actuated irises, and unmounted irises, as well as mounted pinholes and slits.

Iris Selection Guide
Post-Mounted Irises
Unmounted Irises
Threaded Lever-Activated Irises
Threaded Ring-Activated Irises

Thorlabs' Stackable Lens Tubes provide an easy and fast solution for assembly of an optical system with a single optical axis. Using lens tubes one can easily assemble several optical components on a common optical axis without the need for X-Y alignment of each component to the common axis. Thorlabs offers Ø1/2”, Ø1”, Ø2”, Ø30 mm, and Ø3” lens tubes, for use with different optics sizes, as well as adapters to convert between the four different sizes.

Lens Tubes Application Example

Thorlabs also offers many of our optical components in pre-mounted 1” lens tubes as well as specially developed components and mounts, all of which are pre-aligned to the optical axis, including:

Iris Diaphragms that can be controlled from outside the lens tube
Adjustable focus tubes
Translating mounts
Fiber adapters
Laser diode mounts
Temperature controlled tubes
Angled mounts
Mounting adapters for microscope objective and c-mount optics.

Thorlabs has also added alignment tools for lens tubes for working with IR optics, such as infrared alignment disks and alignment targets. Additionally, with the use of retaining rings, any standard optical component can be easily mounted into the lens tubes.

For more complex optical systems Thorlabs has developed sets of post mounting rings, and mounting brackets and construction cubes to enable building complex, rugged systems.

Thorlabs lens tubes can also easily interface with our cage system components such as the cage plates, kinematic turning mirror mounts, pre-mounted beamsplitter cubes and pre-mounted turning mirrors.

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Posted Comments:

Poster: technicalmarketing

Posted Date: 2008-07-28 22:58:46.0

Hallo, We will work on new drawings of the Iris Diaphragms right now. For SM1D12SZ the distance between the leaves is 2.35 mm. The distance from the mounting surface on the side with the external threads to the first set of leaves is 3 mm. Inge@thorlabs.com

Poster: blecompte

Posted Date: 2008-07-23 12:46:33.0

Do you have a 3d solid model of the SM1D12SZ yet? Or can you tell me the location of the iris leaves relative to the mounting surface?

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Lever-Activated Threaded Iris