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Magnetic Laser Safety Screens

  • Laser Engraved with Target Grid 
  • Magnets Hold Screens to Optical Table or Breadboard
  • Anodized Aluminum Surfaces Homogenously Diffuse Light


200 mm (7.87")
Laser Safety Screen
(10 mm Target Grid)


11.81" (300 mm)
Laser Safety Screen
(1/2" Target Grid)

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TPSM1 Typical Application
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TPSM1 in a Beam Stabilization Setup


  • Aluminum Laser Safety Screen with Laser-Engraved Target Grid
  • Available in Two Sizes:
    • TPSM1(/M): 7.87" x 2.95" (200.0 mm x 75.0 mm), Footprint: 2.95" x 1.38" (75.0 mm x 35.0 mm)
    • TPSM2(/M): 11.81" x 2.95" (300.0 mm x 75.0 mm), Footprint: 2.95" x 1.38" (75.0 mm x 35.0 mm)
  • Two Magnets on Underside Provide Holding Force
  • Slotted Mounting Hole for Non-Magnetic Surfaces
  • Homogeneously Diffusive Anodized Coating
  • Damage Threshold: >350 J/cm2 (1064 nm, 20 ns, 20 Hz, Ø1.14 mm)

Our Magnetic Laser Safety Screens are laser engraved on one side with a 1/2" (10 mm for metric versions) target grid for rough laser alignment, while the other side is blank to provide a complete beam blocking option. The base of the screen is fitted with a pair of magnets that hold the screen to magnetic work surfaces and provide flexibility of movement. A through hole is also provided to allow the screen to be tightened down using a cap screw for more permanent placement or for use in non-magnetic applications. The compact size of the screen allows it to fit into small gaps between your accessories, enabling easy integration into a laser setup. This screen is constructed from bead-blasted aluminum to remove any sharp edges, which is then anodized to create a homogeneously diffusive surface. 

Please note: Due to the presence of strong magnets, these laser screens should not be used in the vicinity of pacemakers, credit cards, or other devices affected by magnetic fields.

Posted Comments:
williamg  (posted 2016-02-12 15:49:47.28)
I have an improvement suggestion for the family of vertical rulers like BHM1 etc. It would be nice if both sides had the scales, but the back side had the metric and imperial scales switched. In other words, when you look on one face, it's imperial scale on the left, but when you look on the other face, it's metric scale on the left. This would be very useful in crowded optical setups, when it's inconvenient or impossible to set up the ruler to use the desired scale. It would also be nice to have an option to buy a vertical ruler (like BHM1) that has both magnetic feet on the same side (like TPSM1 does). I often need to take height measurements inside a laser, where floor space is very limited, and feet on opposite sides make it very difficult sometimes. Such ruler, with both scales on both sides, like described in the first paragraph, would be very nice to have, indeed.
cevered  (posted 2016-02-16 10:25:44.0)
Thank you very much for your valuable product feedback. I have begun a discussion within our internal ideas forum and we will inform you of any new releases or suggestions that may arise from your feedback.
christoph.testud  (posted 2015-05-20 15:52:27.753)
Dear Sir or Madam, we are using the alignment screens in our laser lab and would suggest that the magnet in the base do not need to be so strong. If you is not careful the screen can easily snap onto the optical table. Best regards, Christoph Testud Christoph Testud University of Hamburg Center for Free Electron Laser Science (CFEL) Geb. 99, office 02-129 Luruper Chaussee 149 22761 Hamburg Tel.: +49 (0)40 8998 6287
msoulby  (posted 2015-05-26 06:50:44.0)
Response from Mike at Thorlabs: The laser safety screens are designed to be used on steel optical tables, we used magnets rather than screw slots in order to give the customer greater flexibility when placing the screen. The magnets are strong in order to help prevent the safety screen from being knocked and moving easily, which could be a potential hazard if you are using the screen to block a beam.

Magnetic Laser Safety Screens

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
TPSM1 Support Documentation
TPSM1Magnetic Laser Safety Screen, 7.87" x 2.95", Imperial Engraving
Lead Time
TPSM2 Support Documentation
TPSM2Customer Inspired! Magnetic Laser Safety Screen, 11.81" x 2.95", Imperial Engraving
Lead Time
+1 Qty Docs Part Number - Metric Price Available
TPSM1/M Support Documentation
TPSM1/MMagnetic Laser Safety Screen, 200 mm x 75 mm, Metric Engraving
Lead Time
TPSM2/M Support Documentation
TPSM2/MCustomer Inspired! Magnetic Laser Safety Screen, 300 mm x 75 mm, Metric Engraving
Lead Time
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Last Edited: Jul 25, 2013 Author: Lori Stover