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Post Mounts for Lens Tubes


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Post Mounts for Lens Tubes

Thorlabs offers a selection of TR series post compatible fixed lens tube mounts. Depending on the model, the lens tube is either threaded into the fixed SM threaded mount (SMR and LMR series) or held by clamping the lens tube (SMXXRC series). Regardless of the mounting series, the lens tube mounts have an #8-32 (M4) tapped hole on the bottom of the mount suitable for a TR series post.

Our longer length lens tubes are ideal for several applications including the creation of optical subassemblies – a single tube houses several optical elements separated by retaining rings. The rings can be set to specific depths with our convenient spanner wrenches (see below). One retaining ring is included with each lens tube and additional retaining rings are available (see below). Long lens tubes can be beneficial for light baffling and narrowing the acceptance angle for the optical assembly. Our SM series threaded irises are perfect accessories for this application.
Lens Tube Application Idea

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. Thorlabs offers Ø1/2", Ø1", Ø2" and Ø3" lens tubes, for use with different optics sizes, as well as adapters to convert between the four different sizes.

Lens Tube Application Example

Thorlabs offers many different optical and optomechanical components to be used to build a subassembly. The table below outlines the optical components that are sold pre-mounted.

Optical Components

PartDescriptionLens Tube Sizes
Fixed Vertical SlitsPrecision rectangular slits which are ideal for providing a defined input aperture for an optical system.Ø1"
Precision PinholesPrecision pinholes which are ideal for building spatial filters. Ø1"
Mounted Achromatic DoubletsCemented achromatic doublets in a mount. Ø0.5", Ø1", Ø2"
Matched Achromatic Doublets PairsAchromatic doublets are designed for infinite conjugate ratios and come set in a houseing. Ø0.5", 1"
FiltersVarious bandpass, edgepass, ND, and dichroic mounted filters.Ø1"

We also offer several optomechanical components, all of which can be found here and are listed in the table below.

Optomechanical Components

PartDescriptionLens Tube Sizes
Iris DiaphragmsLever and ring adjustable irises that can be controlled from outside the lens tube and beam shutters.Ø0.5", Ø1", Ø2", Ø3"
Adjustable Focus Lens TubesEnables fine control over the working distance between components.Ø0.5", Ø1", Ø2"
Fiber AdaptersAllows FC, SMA, and ST connectos to be integrated with our lens tubes.Ø0.5", Ø1"
Laser Diode MountsThese mounts are designed for mounting 5.6mm and 9mm laser diodes.Ø1"
Temperature Controlled Lens TubesBoth passive and active temperture controled lens tubes are available.Ø1"
Angled MountsThese mounts are designed for mounting 1/2" or 1" optical windows at a 10° angle. Ø0.5", Ø1"
Mounting Adapters for Microscope ObjectivesAdapters for mounting microscope objectives to a lens tube.Ø1"

Mounts and Other Components

PartDescriptionLens Tube Sizes
Translating MountsAllows XY adjustment of the optical component.Ø1"
Slip Ring Post MountsUse these slip rings to mount a lens tube to a post.Ø0.5", Ø1", Ø2", Ø3"
Contruction CubesThese contruction cubes allows for up to 6 lens tubes to be combined forming 3D structures.Ø1", Ø2"

Thorlabs lens tubes can also easily interface with our cage system components such as the cage plates for: 16mm cage system, 30mm cage system, and 60mm cage system, kinematic turning mirror mounts, pre-mounted beamsplitter cubes and pre-mounted turning mirrors.

Features

  • Easily Construct Multi-Element Optical Systems
  • Lens Tubes Available for Ø1/2", Ø1", Ø2", and Ø3" Optics
  • Wide Range of Optomechanical Components Available Such as Irises and Diaphrams
  • Extensive Selection of Compatible Mounting Components
  • Compatible With Our Cage Systems
Cross Section Of SM-Series Lens Tube 

Each tube is internally threaded with one of our SM series standard thread sizes depending on the tube diameter with a small retaining shoulder at one end that provides the largest possible clear aperture for each tube size. The shoulder end of the lens tube is externally threaded to the same thread standard used for the internal bore, allowing these tubes to be joined to one another or mounted into another component, such as our cage plates, with mating threads.

 

 
Our longer length lens tubes are ideal for several applications including the creation of optical subassemblies – a single tube houses several optical elements separated by retaining rings. The rings can be set to specific depths with our convenient spanner wrenches (see below). One retaining ring is included with each lens tube and additional retaining rings are available (see below). Long lens tubes can be beneficial for light baffling and narrowing the acceptance angle for the optical assembly. Our SM series threaded irises are perfect accessories for this application. 
Lens Tube Application Example 
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Posted Comments:
Poster: Tyler
Posted Date: 2008-09-24 10:37:33.0
A response from Tyler at Thorlabs to larauz and acable: Thank you for the feedback regarding the presentation on this page. We have some excellent new features that should help facilitate finding the products you require on the web. The image at the top of the page now has more links to related products. In addition, by mid October a set of pages with additional navigational aids will be released for the lens tube products. Hopefully, you will find it easier to transition smoothly between lens tubes and the related items and accessories that you need to buy for your lens tubes. Please continue to use this forum to let us know what does and doesnt work as we are dedicated to designing a premium website that is easy to navigate and has all of the information you require to make choosing the correct product easy.
Poster: acable
Posted Date: 2008-01-18 07:30:26.0
I would recommend that the slip ring mounts be added directly to this page. And while the page is already quite long i would also suggest adding the kinematic mirror mounts with SM series threads and then provide a link to a selection guide that shows all the other SM series compatible mounts. Also no provision for post mounting a 3" lens tube is provided, please offer a solution, if we dont have a mount directly designed for this purpose add the LMR3 but point out this can only accept a lens tube from one side.
Poster: larauz
Posted Date: 2007-07-30 11:53:41.0
hi, I think that under related items we can also add the "Lens Tube Slip Rings" that is another options customers would like to mount the lens tube. -LA
Poster: acable
Posted Date: 2007-07-28 08:41:15.0
On the Overview tab it is not crystal clear that the lens tubes are designed to accept 1/2", 1", 2", and 3" optics. In the drawing please add a cross-section of a lens, please a dimension table that indicates the size of the bore with tolerances e.g. 0.505" +0.005/-0.000.... 1/2" Lens Tubes Accessories: Give photo for each part, perhaps have the SMR05 (&/M) as separate table, i would also add a ghosted post to all the SMR# so it is easier to see its function. Sort the price box putting the CP1 before the CP2. 1" & 2" Lens Tubes Accessories: Same comments plus add photo for the SM1PL plug.
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ؽ" Lens Tube Post Mounts
  • Internally SM05 Threaded
  • Post Mountable via #8-32 (M4) Tap

This mount allows an SM05 threaded lens tube to be mounted to a standard TR series post via an #8-32 (M4) tap on the bottom of the mount. The SMR05 (SMR05/M) has is internally SM05 (0.535"-40) threaded, allowing externally SM05 threaded components to be attached to either side.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
SMR05 Support Documentation
SMR05 Ø1/2" Lens Mount with SM05 Internal Threads and No Retaining Lip, 8-32 Tap
$16.80
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
SMR05/M Support Documentation
SMR05/M Ø1/2" Lens Mount with SM05 Internal Threads and No Retaining Lip, M4 Tap
$16.80
Today
Ø1" Lens Tube Post Mounts
  • Internal SM1 Threads
  • Mounts Optics up to 0.24" (6.1 mm) Thick
  • Opitcs Held in Mount via 2 SM1RR Retaining Rings (Sold Separately)
  • 8-32 (M4) Tapped Hole for Mounting to Ø1/2" Posts
  • Mount Externally SM1-Threaded Components on Either Side

This SM1-threaded (1.035"-40) Lens Tube Post Mount features internal SM1 (1.035"-40) threading that extends the full length of the mount without any retaining lip. It is perfect for mounting lens tubes and other mounted optics, and can also be used to hold unmounted optics when used with two retaining rings (sold separately).

Item # Optic
Diameter
Max Optic
Thicknessa
Clear
Aperture
Optical
Height
Compatible Retaining
Ring (Not Included)b
Suggested
Spanner Wrench
SMR1(/M) Ø1" 0.24" (6.1 mm) Ø1.0" (Ø25.4 mm) 0.87" (22.1 mm) SM1RR SPW602 or SPW606
  • 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.
  • Two retaining rings are needed to secure an optic in this mount.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
SMR1 Support Documentation
SMR1 Ø1" Lens Mount with SM1 Internal Threads and No Retaining Lip, 8-32 Tap
$17.85
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
SMR1/M Support Documentation
SMR1/M Ø1" Lens Mount with SM1 Internal Threads and No Retaining Lip, M4 Tap
$17.85
Today
Ø2" Lens Tube Post Mounts
  • Internally SM2 Threaded
  • Compatible with our Ø2" Lens Tubes
  • Post Mountable via 8-32 (M4) Mounting Hole

This mount allows an SM2 threaded lens tube to be mounted to a Ø1/2" Post via an 8-32 (M4) tap on the bottom of the mount. The SMR2(/M) is internally SM2 (2.035"-40) threaded all the way through, allowing externally SM2 threaded components to be attached.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
SMR2 Support Documentation
SMR2 Ø2" Lens Mount with SM2 Internal Threads and No Retaining Lip, 8-32 Tap
$25.20
Today
SM2RC Support Documentation
SM2RC Ø2" (SM2) Series Slim Lens Tube Slip Ring, 8-32 Tapped Hole
$28.00
Today
LMR2S Support Documentation
LMR2S Ø2" Lens Mount with Internal and External SM2 Threads, 8-32 Tap
$30.45
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
SMR2/M Support Documentation
SMR2/M Ø2" Lens Mount with SM2 Internal Threads and No Retaining Lip, M4 Tap
$25.20
Today
SM2RC/M Support Documentation
SM2RC/M Ø2" (SM2) Series Slim Lens Tube Slip Ring, M4 Tapped Hole
$28.00
Today
LMR2S/M Support Documentation
LMR2S/M Ø2" Lens Mount with Internal and External SM2 Threads, M4 Tap
$30.45
Today
Ø3" Lens Tube Post Mounts
The SM3RC (SM3RC/M) mount allows a Ø3" lens tube to be mounted to a standard TR series post due to the #8-32 (M4) threaded mounting hole on the bottom side of the mount. The Ø3" lens tube slides through the SM3RC (SM3RC/M) ring until the desired position is reached and then the clamping screw is tighten to securely fix the position of the lens tube.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
SM3RC Support Documentation
SM3RC Ø3" (SM3) Series Slim Lens Tube Slip Ring, 8-32 Tapped Hole
$36.00
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
SM3RC/M Support Documentation
SM3RC/M Ø3" (SM3) Series Slim Lens Tube Slip Ring, M4 Tapped Hole
$36.00
Today
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