Glaser Jailer

Active Laser Safety Window

The Glaser Jailer by Lasermet is a fail-safe safety system that enables high powered lasers to be switched off virtually immediately if the laser beam inadvertently strikes the window. It is suitable for all laser powers, wavelengths, and waveforms. The Glaser Jailer system isolates the laser safety input within 50ms of an inadvertent laser window strike, rendering the laser safe.

  • Interlock® safety
  • Suitable for Class 1 Laser Enclosures
  • Certified to BS EN IEC 60825-4


Usually fitted into the panels or doors of the Laser Castle Laser Safety Cabin, Glaser Jailer Active Laser Safety Window is connected to the Interlock® control system to enable laser welding operations to be viewed safely from outside the cabin.

This enables multi-kilowatt lasers (up to 10kW) used for welding, cutting and cladding to be made safe, preventing harm to personnel and preventing damage to surrounding infrastructure. The Glaser Jailer window is suitable for all laser powers, wavelengths and waveforms.

Integrated with the Lasermet Laser Jailer active laser guarding system, it provides a complete active solution. Currently in operation worldwide, this revolutionary active, patented technology is already tested and proven.

Glaser Jailer windows are constantly monitored by the Interlock® control system when the laser is in operation. A direct hit by a powerful laser will cause the window to activate the Interlock® controller which then turns the laser off. This failsafe technology isolates the laser safety input in less than 50 milli-seconds.

The window should be replaced following a direct hit, but only following an investigation into the cause of the direct hit and when corrective measures have been taken to prevent it happening again.

A4 Size276 x 368mm
(210mm x 297mm viewing area)
Full Size830mm x 630mm
(770mm x 570mm viewing area)

Custom sizes are available to meet customer requirements.


Glaser Jailer can be incorporated into, and form part of, a certified Class 1 Laser Enclosure (for multi-kW Class 4 lasers) conforming to BS EN IEC 60825-4.

Additional information


830mm x 630mm
(770mm x 570mm viewing area)

276mm x 368mm
(210mm x 297mm viewing area)

Patents for Lasermet Active Guarding Technology

US Patent No. 8 416 820
European Patent No. 2 592 326 CH+LI DE FR GB IE NL SE
Australian Active Window Patent 2012202599