Ø1/2" Adapters for Unmounted Optics

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An Ø8.0 mm lens is epoxied into an LMRA8 Adapter and then inserted into an internally SM05-threaded component.  A retaining ring can then be used to secure the LMRA8 into the SM05 threaded component.

• Mounts Non-Standard Optics into our Standard Threaded Ø1/2" Optic Mounts
• Can be Used Directly with SM05 Lens Tubes
• Mounts for Ø2 mm, Ø3 mm, Ø5 mm, Ø6 mm, Ø6.35 mm, Ø7 mm, Ø7.4 mm, Ø8 mm, and Ø9 mm
• Glue Ports Provided to Secure Optic in Housing

Thorlabs' small-optic mounting adapters are designed to mount non-standard optic sizes into Ø1/2" Mounts. Each stainless steel adapter includes two or three reservoirs next to the lens cell to secure the lens in place with General Purpose or UV Curing epoxy. Simply place a drop or two of adhesive into each reservoir located next to the lens in the adapter. We recommend using our NOA61 UV curing adhesive and MS403-10 epoxy syringe.

The Ø1/2" Optic Mounting Adapters featured below are compatible with our LMR05 (LMR05/M) or MLH05 (MLH05/M) Lens Mounts, SM05 Lens Tubes, or 16 mm Cage Components. Once the optic is secured in the small-optic adapter, the new assembly is held in one of these threaded mounts using an SM05RR Retaining Ring.

Also available is the LMRA10 for Ø10 mm optics, which has an outer diameter of 18 mm, and adapters with Ø1" outer diameters or external SM1 threads that use retaining rings to hold optics between Ø5 mm and Ø20 mm. Alternatively, we offer internally threaded, post-mountable fixed mounts for mounting optics from Ø5 mm to Ø4".

Incorporating Small Optics into Lens Tube Systems
In addition to providing a means for mounting small optics in our LMR series of lens mounts, these adapters are directly compatible with our SM05 Lens Tubes, making it possible to insert Ø2 mm to Ø9 mm optics into a lens tube system.

• Mounts Ø1" Optics into our Standard Ø1/2" Optic Mounts
• Ø0.35" Through Hole for Compatibility with Ø1" Optical Filters
• Nylon-Tipped Setscrew Holds the Optic Securely in Place
• Minimum Optic Thickness: 3 mm 

The AD1B features an internal smooth bore with a 1" mounting diameter and an external 1/2" mounting diameter compatible with Ø1/2" mounts, such as the KM05 Kinematic Mount. A nylon-tipped 8-32 setscrew (which requires a 5/64" hex key) holds the Ø1" optic securely against two contact lines machined into the inside diameter.  In addition, it features a through hole with a clear aperture of Ø0.35" to accommodate Ø1" optical filters.

In conjunction with the SM05P05 External SM05 Thread to Ø1/2" Optic Mount Adapter, the AD1B can be used to mount Ø1" optical filters to the end of a Ø1/2"  lens tube, allowing a user to incorporate Ø1" optical filters into a Ø1/2" lens tube system, as shown in the photo below.

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An AD1B is being used to mount a Ø1" mirror in a KM05  Ø1/2" kinematic mount.

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An AD1B is being used with a SM05P05 to mount a Ø1" optical filter to the end of a  Ø1/2" lens tube.