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SM Series Angled Optic Mounts


  • 10° Angle Reduces Etalon Effects on Plano-Plano Optics
  • Eliminate Back Reflections
  • Accepts Optics up to 5 mm Thick

SM1L03T

SM1L03T

SM1L20

SMR1

LM1XY

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Features

  • Mounts Ø1" Optics at 10° Angle
  • Reduces Back Reflections and Etalon Effects in Plano-Plano Optics
  • Accepts Optics up to 5 mm Thick
  • SM1 (1.035"-40) Threaded
  • SM1RR Retaining Ring Included
  • SM1NT Locking Nut Included

The SM1L03T Angled Optic Mount is designed to minimize back reflections occurring from a Ø1" optical window by mounting it at a fixed, 10° angle. This mounted angle also helps reduce the etalon effects present in optics with parallel surfaces. The SM threading on the rear side allows the mount to be easily coupled to a Ø1" lens tube. Using our SM1 thread adapters, the mount can also be added to a Ø1/2", Ø2", or Ø3" lens tube setup. This mount accommodates optics up to 5 mm thick, making it compatible with many of our flat windows.

The etalon effect occurs when the front and back surfaces of a window or filter create Fresnel reflections that interfere with the original beam. Tilting a window with an angled optic mount reduces the etalon effect, and the output from the window or filter contains less interference, giving a smoother, more accurate baseline of the source. 

Since the beam exiting the angled window is displaced as a function of the thickness of the window and its material, Thorlabs recommends using the angled optic mount together with an XY Translating Mount such as the LM1XY to offset this displacement.

Lens Tube Construction

Thorlabs offers a wide variety of components to help create an enclosed optical beam path utilizing lens tubes. Optics are separated and secured by retaining rings that are positioned along the length of lens tubes using a compatible SM spanner wrench. Lens tubes come with one or two compatible SM-threaded retaining rings with the exception of the internally unthreaded lens tube spacers. The SM1L03T Angled Optic Mount comes with an SM1RR retaining ring. In addition, Thorlabs offers stress-free and plastic retaining rings for optics which require reduced stress on our SM-Threaded Retaining Rings page. 

Lens Tube Application Example
Lens Tube Compatible Products
Thread Adapters Terminated Fiber Adapters Collimation Package Adapters LED Mounts LD Mounts Aspheric Lens Mounts Irises, Apertures, and Shutters Alignment Tools

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Posted Comments:
Poster:tor
Posted Date:2011-01-05 19:56:57.0
Response from Tor at Thorlabs to Boris: Thank you for your request. I will contact you directly to determine whether we can provide a custom part for your application.
Poster:btadjikov
Posted Date:2011-01-04 14:45:27.0
Hi, I would like to have 1/2" version of SM series angled optics mount. Also, 10deg seems too big for most applications, 3-5 deg is enough. Regards, Boris Tadjikov, engineer Pranalytica, Inc. btadjikov@pranalytica.com
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
SM1L03T Support Documentation
SM1L03TSM1 Series 10° Angled Optic Mount
$49.00
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