Ø1" Adapters for Unmounted Optics

Mounting Solutions for Optics from Ø5 mm to Ø2"
Adapt Optics to Either Smaller or Larger Mount
Unthreaded, Internally Threaded, or Externally Threaded Mounts

AD1-2

Adapts Ø2" Optics
to Ø1" Mounts

AD1

Ø1/2" Smooth Bore
Ø1" Smooth Outer Surface

SM1AD10

Externally and
Internally Threaded
Adapter

AD6T

Internally
Threaded
Adapter

Application Idea

Ø2" Mirror Mounted in KM100 Mount
Using AD1-2 Adapter
(Optic and Mount Sold Separately)

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OVERVIEW

Thorlabs offers these versatile mounts to adapt easily between various optic diameter standards. With options for Ø5 mm to Ø2" optics, this family of adapters offers a wide range of solutions for adapting optics to Ø1" optomechanical systems, including optical mounts and lens tubes.

Hide Unthreaded Mounting Adapters: Small Optic to Ø1" Mount

Unthreaded Mounting Adapters: Small Optic to Ø1" Mount

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Ø1/2" Optic Mounted in a Ø1" KM100 Mirror Mount Using an AD1 Adapter

These unthreaded adapters both feature a smooth Ø1" outer surface. The AD1 adapter has a Ø1/2" counterbore while the AD15MM adapter offers a Ø15 mm counterbore; optics are secured against two contact lines using a nylon-tipped setscrew.

Item #	Counterbore	OD	Optic Thickness (Max)^a	Optical Thickness (Min)	Mount Thickness (T)
AD1	Ø0.50" (Ø12.7 mm)	Ø1.00"	0.22" (5.6 mm)	0.13" (3.3 mm)	0.25" (6.4 mm)
AD15MM	Ø0.60" (Ø15.0 mm)	Ø1.00"	0.22" (5.6 mm)	0.13" (3.3 mm)	0.25" (6.4 mm)

This specification is true for thin lenses. For lenses with small focal lengths, and hence large lens curvatures, please contact Tech Support to ensure a proper fit.

Part Number	Description	Price	Availability
AD1	Ø1" OD Adapter for Ø1/2" Optic, 0.25" Thick	$18.18	3-5 Days
AD15MM	Ø1" OD Adapter for Ø15 mm Optic, 0.25" Thick	$19.48	3-5 Days

Hide Unthreaded Mounting Adapter: Ø2" Optic to Ø1" Mount

Unthreaded Mounting Adapter: Ø2" Optic to Ø1" Mount

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Ø2" Mirror Mounted in a Ø1" KM100 Mirror Mount Using an AD1-2 Adapter

The AD1-2 features an internal 2" mounting diameter with an external 1" mounting diameter compatible with Ø1" mounts. A nylon-tipped setscrew holds the optic securely against two contact lines machined into the inside diameter. Optics must have a minimum thickness of 0.20" (5.13 mm) to be properly retained.

Part Number	Description	Price	Availability
AD1-2	Ø1" Mount Adapter for Ø2" Optic, 0.40" Thick	$35.35	3-5 Days

Hide Mounting Adapters with Internal Threads

Mounting Adapters with Internal Threads

These internally threaded mounting adapters are ideal for stress-free mounting for optics from Ø5 mm to Ø20 mm. Retaining rings can be used to hold these adapters in an SM1 lens tube. With a smooth outer diameter, the AD1T is especially well-suited for mounting Ø1/2" optics into Ø1" mounts. One retaining ring is included for securing optics in the adapter; for detailed specifications for each type of thread, please see our retaining ring presentation.

Alternatively, Thorlabs offers internally threaded, post-mountable fixed mounts for mounting optics from Ø5 mm to Ø4".

Item #	Optic	CA^a	OD	Optic Thickness (Max)^b	Internal Thread	Retaining Ring	Mount Thickness	Spanner Wrench (Not Included)
AD5T	Ø5 mm	Ø3.8 mm	Ø1"	0.29" (7.4 mm)	M5.5 x 0.5	SM5RR	0.38" (9.7 mm)	SPW801
AD6T	Ø6 mm	Ø4.8 mm	Ø1"	0.29" (7.4 mm)	M6.5 x 0.5	SM6RR
AD7T^c	Ø7 mm	Ø5.8 mm	Ø1"	0.26" (6.6 mm)	M7.5 x 0.5	SM7RR
AD8T^d	Ø8 mm	Ø6.9 mm	Ø1"	0.26" (6.6 mm)	M8.5 x 0.5	SM8RR
AD9T	Ø9 mm	Ø7.9 mm	Ø1"	0.29" (7.4 mm)	M9.5 x 0.5	SM9RR
AD10T	Ø10 mm	Ø8.8 mm	Ø1"	0.29" (7.4 mm)	M10.5 x 0.5	SM10RR
AD11T	Ø11 mm	Ø9.1 mm	Ø1"	0.25" (6.4 mm)	M11.5 x 0.5	SM11RR
AD12T^e	Ø12 mm	Ø10.9 mm	Ø1"	0.26" (6.6 mm)	SM05 (0.535"-40)	SM05RR
AD1T^f	Ø1/2"	Ø12.0 mm	Ø1"	0.14" (3.6 mm)	SM05 (0.535"-40)	SM05RR	0.23" (5.8 mm)
AD13T	Ø13 mm	Ø10.7 mm	Ø1"	0.25" (6.4 mm)	M13.5 x 0.5	SM13RR	0.38" (9.7 mm)
AD14T	Ø14 mm	Ø11.7 mm	Ø1"	0.25" (6.4 mm)	M14.5 x 0.5	SM14RR
AD15T	Ø15 mm	Ø12.7 mm	Ø1"	0.29" (7.4 mm)	M15.5 x 0.5	SM15RR
AD16T	Ø16 mm	Ø13.6 mm	Ø1"	0.22" (5.6 mm)	M16.5 x 0.5	SM16RR
AD17T	Ø17 mm	Ø14.5 mm	Ø1"	0.22" (5.6 mm)	M17.5 x 0.5	SM17RR
AD18T	Ø18 mm	Ø15.7 mm	Ø1"	0.27" (6.9 mm)	0.750"-40	SM18RR
AD19T	Ø19 mm	Ø16.3 mm	Ø1"	0.27" (6.9 mm)	M19.5 x 0.5	SM19RR
AD20T	Ø20 mm	Ø17.3 mm	Ø1"	0.27" (6.9 mm)	M20.5 x 0.5	SM20RR

Clear Aperture of Retaining Ring
Maximum Optical Thickness: This specification is true for thin lenses. For lenses with small focal lengths, and hence large lens curvatures, please contact Tech Support to ensure a proper fit.
The AD7T can also be used to secure Ø6.35 mm optics.
The AD8T can also be used to secure Ø7.4 mm optics.
The AD12T can also be used to secure Ø12, Ø12.5, and Ø12.7 mm optics.
The AD1T can also be used to secure Ø12.5 mm optics.

Part Number	Description	Price	Availability
AD5T	Ø1" OD Adapter for Ø5 mm Optic, Internally Threaded, 0.38" Thick	$21.26	3-5 Days
AD6T	Ø1" OD Adapter for Ø6 mm Optic, Internally Threaded, 0.38" Thick	$21.26	3-5 Days
AD7T	Ø1" OD Adapter for Ø7 mm Optic, Internally Threaded, 0.38" Thick	$21.26	3-5 Days
AD8T	Ø1" OD Adapter for Ø8 mm Optic, Internally Threaded, 0.38" Thick	$21.26	3-5 Days
AD9T	Ø1" OD Adapter for Ø9 mm Optic, Internally Threaded, 0.38" Thick	$21.26	3-5 Days
AD10T	Ø1" OD Adapter for Ø10 mm Optic, Internally Threaded, 0.38" Thick	$21.26	3-5 Days
AD11T	Ø1" OD Adapter for Ø11 mm Optic, Internally Threaded, 0.38" Thick	$21.26	3-5 Days
AD12T	Ø1" OD Adapter for Ø12 mm Optic, Internally SM05 Threaded, 0.38" Thick	$21.26	3-5 Days
AD1T	Ø1" OD Adapter for Ø1/2" Optic, Internally SM05 Threaded, 0.23" Thick	$21.26	3-5 Days
AD13T	Ø1" OD Adapter for Ø13 mm Optic, Internally Threaded, 0.38" Thick	$21.26	3-5 Days
AD14T	Ø1" OD Adapter for Ø14 mm Optic, Internally Threaded, 0.38" Thick	$21.26	3-5 Days
AD15T	Ø1" OD Adapter for Ø15 mm Optic, Internally Threaded, 0.38" Thick	$21.26	3-5 Days
AD16T	Ø1" OD Adapter for Ø16 mm Optic, Internally Threaded, 0.38" Thick	$21.26	3-5 Days
AD17T	Ø1" OD Adapter for Ø17 mm Optic, Internally Threaded, 0.38" Thick	$21.26	3-5 Days
AD18T	Ø1" OD Adapter for Ø18 mm Optic, Internally Threaded, 0.38" Thick	$21.26	3-5 Days
AD19T	Ø1" OD Adapter for Ø19 mm Optic, Internally Threaded, 0.38" Thick	$21.26	3-5 Days
AD20T	Ø1" OD Adapter for Ø20 mm Optic, Internally Threaded, 0.38" Thick	$21.26	3-5 Days

Hide Mounting Adapter with External Threads

Mounting Adapter with External Threads

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SM05 Lens Tube Mounted in KM100 Mirror Mount Using SM1A60 Adapter

The SM1A60 adapter features an internal Ø0.7" bore with external SM1 (1.035"-40) threads as well as an external Ø1" smooth bore. This allows our SM05 Lens Tubes to be mounted within our SM1 Lens Tube System, as well as within SM1-threaded mounts, such as the LMR1. The outer surface of the adapter also has a smooth section which can be used to secure it into a Ø1" optics mount with a smooth bore, such as the KM100 Kinematic Mount.

Item #	Bore	OD	Optic Thickness (Max)	Mount Thickness	External Thread	Spanner Wrench (Not Included)
SM1A60	Ø0.7" (Ø17.8 mm)	Ø1.00" (Ø25.4 mm)	N/A^a	0.45" (11.4 mm)	SM1 (1.035"-40)	SPW801

This adapter has a center bore through the length of the part, so the thickness of the mounted object is not limited.

Part Number	Description	Price	Availability
SM1A60	Customer Inspired! Externally SM1-Threaded Mounting Adapter with Ø0.7" (Ø17.8 mm) Bore and 1" Outer Diameter	$23.63	3-5 Days

Hide Mounting Adapters with Internal and External Threads

Mounting Adapters with Internal and External Threads

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Ø1/2" Optic Mounted in a
Ø1" ST1XY-D XY Translator
Using an SM1A6T Adapter

The SM1 Series Adapters are internally threaded adapters for optics from Ø5 mm to Ø20 mm. Featuring an SM1-threaded outer diameter, these adapters are designed to mount with Ø1" lens tubes or other internally SM1-threaded components. Two retaining rings are included for securing optics in the adapter; for detailed specifications for each type of thread, please see our retaining ring presentation.

Alternatively, Thorlabs offers internally threaded, post-mountable fixed mounts for mounting optics from Ø5 mm to Ø4".

Item #	Optic	CA^a	Optic Thickness (Max)^b	Internal Thread	External Thread	Retaining Ring	Mount Thickness	Spanner Wrench (Not Included)
SM1AD5	Ø5 mm	Ø3.8 mm	0.27" (6.9 mm)	M5.5 x 0.5	SM1 (1.035"-40)	SM5RR	0.40" (10.2 mm)	SPW801
SM1AD6	Ø6 mm	Ø4.8 mm	0.27" (6.9 mm)	M6.5 x 0.5	SM1 (1.035"-40)	SM6RR
SM1AD7^c	Ø7 mm	Ø5.8 mm	0.27" (6.9 mm)	M7.5 x 0.5	SM1 (1.035"-40)	SM7RR
SM1AD8^d	Ø8 mm	Ø6.9 mm	0.27" (6.9 mm)	M8.5 x 0.5	SM1 (1.035"-40)	SM8RR
SM1AD9	Ø9 mm	Ø7.9 mm	0.27" (6.9 mm)	M9.5 x 0.5	SM1 (1.035"-40)	SM9RR
SM1AD10	Ø10 mm	Ø8.8 mm	0.27" (6.9 mm)	M10.5 x 0.5	SM1 (1.035"-40)	SM10RR
SM1AD11	Ø11 mm	Ø9.1 mm	0.27" (6.9 mm)	M11.5 x 0.5	SM1 (1.035"-40)	SM11RR
SM1A6T^e	Ø1/2"	Ø10.9 mm	0.27" (6.9 mm)	SM05 (0.535"-40)	SM1 (1.035"-40)	SM05RR
SM1AD13	Ø13 mm	Ø10.9 mm	0.27" (6.9 mm)	M13.5 x 0.5	SM1 (1.035"-40)	SM13RR
SM1AD14	Ø14 mm	Ø11.7 mm	0.27" (6.9 mm)	M14.5 x 0.5	SM1 (1.035"-40)	SM14RR
SM1AD15	Ø15 mm	Ø12.7 mm	0.27" (6.9 mm)	M15.5 x 0.5	SM1 (1.035"-40)	SM15RR
SM1AD16	Ø16 mm	Ø13.6 mm	0.24" (6.1 mm)	M16.5 x 0.5	SM1 (1.035"-40)	SM16RR
SM1AD17	Ø17 mm	Ø14.5 mm	0.24" (6.1 mm)	M17.5 x 0.5	SM1 (1.035"-40)	SM17RR
SM1AD18	Ø18 mm	Ø15.7 mm	0.24" (6.1 mm)	0.750"-40	SM1 (1.035"-40)	SM18RR
SM1AD19	Ø19 mm	Ø16.3 mm	0.24" (6.1 mm)	M19.5 x 0.5	SM1 (1.035"-40)	SM19RR
SM1AD20	Ø20 mm	Ø17.3 mm	0.24" (6.1 mm)	M20.5 x 0.5	SM1 (1.035"-40)	SM20RR

Clear Aperture of Retaining Ring
Maximum Optical Thickness: This specification is true for thin lenses. For lenses with small focal lengths, and hence large lens curvatures, please contact Tech Support to ensure a proper fit.
The SM1AD7 can also be used to secure Ø6.35 mm optics.
The SM1AD8 can also be used to secure Ø7.4 mm optics.
The SM1A6T can also be used to secure Ø12.5 mm optics.

Part Number	Description	Price	Availability
SM1AD5	Externally SM1-Threaded Adapter for Ø5 mm Optic, 0.40" Thick	$24.94	3-5 Days
SM1AD6	Externally SM1-Threaded Adapter for Ø6 mm Optic, 0.40" Thick	$24.94	3-5 Days
SM1AD7	Externally SM1-Threaded Adapter for Ø7 mm Optic, 0.40" Thick	$24.94	3-5 Days
SM1AD8	Externally SM1-Threaded Adapter for Ø8 mm Optic, 0.40" Thick	$24.94	3-5 Days
SM1AD9	Externally SM1-Threaded Adapter for Ø9 mm Optic, 0.40" Thick	$24.94	3-5 Days
SM1AD10	Externally SM1-Threaded Adapter for Ø10 mm Optic, 0.40" Thick	$24.94	3-5 Days
SM1AD11	Externally SM1-Threaded Adapter for Ø11 mm Optic, 0.40" Thick	$24.94	3-5 Days
SM1A6T	Customer Inspired! Adapter with External SM1 Threads and Internal SM05 Threads, 0.40" Long	$23.41	3-5 Days
SM1AD13	Externally SM1-Threaded Adapter for Ø13 mm Optic, 0.40" Thick	$24.94	3-5 Days
SM1AD14	Externally SM1-Threaded Adapter for Ø14 mm Optic, 0.40" Thick	$24.94	3-5 Days
SM1AD15	Externally SM1-Threaded Adapter for Ø15 mm Optic, 0.40" Thick	$24.94	3-5 Days
SM1AD16	Externally SM1-Threaded Adapter for Ø16 mm Optic, 0.40" Thick	$26.39	3-5 Days
SM1AD17	Externally SM1-Threaded Adapter for Ø17 mm Optic, 0.40" Thick	$26.39	3-5 Days
SM1AD18	Externally SM1-Threaded Adapter for Ø18 mm Optic, 0.40" Thick	$26.39	3-5 Days
SM1AD19	Externally SM1-Threaded Adapter for Ø19 mm Optic, 0.40" Thick	$26.39	3-5 Days
SM1AD20	Externally SM1-Threaded Adapter for Ø20 mm Optic, 0.40" Thick	$26.39	3-5 Days