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Laser Safety Products > CE Marked Laser-Blocking Screens, Curtains and Roller Blinds

CE Marked Laser-Blocking Screens, Curtains and Roller Blinds

For the latest information please visit our curtains, screens and roller blinds pages.

portable laser blocking screens
Portable laser blocking screens

Protect Your Employees and Third Parties from Stray Laser Radiation

Most Class 4 and many Class 3B lasers present an eye hazard over very long distances and it is therefore imperative to have comprehensive laser safety protection in place wherever they are present. Laser radiation must be prevented from escaping through the windows of laboratories and production facilities. Ordinary curtains or screens are rarely capable of stopping a laser beam and specially-designed blocking products are required. Similarly, production facilities utilising Class 1 lasers which are Class 4 under service conditions require ceiling-mounted curtains or free-standing screens made from a suitable material to allow other work to continue safely in the same room during service.

To fulfill these needs Lasermet offers laser users a range of laser-blocking free-standing screens, curtains and roller blinds. These are designed for use as passive guards to enclose an area where Class 3B or Class 4 lasers are in use either to protect against accidental exposure to the laser beam or for long term blocking of laser radiation at lower power densities. They have all been developed by Lasermet specifically to provide the most cost-effective and high-quality solutions to virtually all laser-blocking requirements.

All Lasermet laser-blocking products are CE marked and certified to EN 60825-4 (Safety of Laser Products Part 4: Laser Guards).

Laser-blocking curtains, roller blinds and standard screens are made from a laser-blocking material which has been specially developed for laser safety by Lasermet. This can be supplied as ready-made ceiling or wall-mounted curtains, roller blinds, window blocks or free standing screens and enclosures.

Also available are heavy-duty screens for high power, multi-kilowatt materials-processing lasers. These are made from a 50 mm thick sandwich of steel and a special lightweight laser-blocking material.

Free-Standing Laser-blocking Screens

Lasermet Laser Blocking Screens are offered in standard and heavy-duty options. Both are made from materials which have been specially developed by Lasermet using their expert understanding of practical laser safety requirements. These screens can be used to block lasers of all wavelengths.

Heavy Duty Laser Screens, Connected and Interlocked
Heavy Duty Laser Screens, Connected and Interlocked

Heavy-Duty Laser Blocking Screens

These screens are designed to block all lasers, including high power, multi-kilowatt materials processing lasers. There are two standard size screens, both of which are 1.98m high. The LBS-HD-8 is 2.35 m wide and the LBS-HD-4 is 1.185 m wide.

The screens consist of a 50 mm thick sandwich of steel and a special lightweight laser-blocking material, with a white laminate finish on both sides. This is mounted on a powder-coated steel framework, with heavy-duty lockable castors. The screens can be wheeled into position and then kept there by locking the castors. They can be used to form a complete enclosure or part thereof.

Heavy-duty screens can be used to block lasers of all wavelengths. They offer protection to the following specifications:

Irradiated Area PEL (T3) 10 s PEL (T2) 100 s
4 mm2 62 MW/m2 35 MW/m2
2000 mm2 3.1 MW/m2 1.7 MW/m2

Where a production line uses a Class 4 laser for cutting and welding, it is impractical for the whole facility to observe Class 4 safety regulations. However, using complete enclosures can to turn the laser facility into a Class 1 system.



Standard laser blocking screens guarding laser system
Standard laser blocking screens guarding laser system

Standard Laser-Blocking Screens

These are available in two standard size screens. The LBS-8 is 2.44 m (8 ft) wide and the LBS-4 is 1.22 m (4 ft) wide. Both are 1.92 m (6 ft 4 in) high, which is high enough to protect the eyes of anyone less than 6 ft 8 inches tall standing right up to the screen, while low enough to pass through a standard doorway. The screens can be made higher if desired.

Standard Laser-Blocking Screens consist of a black powder coated steel framework, mounted on lockable castors. The framework supports a laser-blocking screen made from Lasermet's specially-developed laser-blocking material which seals to the floor. The material is white on one side and black on the other side and will operate as a blackout screen as well as a laser-blocking screen. Both sides will block laser radiation but if the white side is used as the laser-blocking side a higher specification of blocking will be achieved, making it suitable for higher power lasers.

The material is fireproof. When irradiated with greater than 0.5 MW/m2 it will emit a non-hazardous smoke and may glow, thus indicating that a stray beam is present. Protection times given by the material at various power densities are shown in the specifications below.

  Irradiated Area PEL (T2) 10s PEL (T2) 100s
Black or White Side 4mm2 3.9 MW/m2 2.2 MW/m2
  2000mm2 0.62 MW/m2 0.35 MW/m2

Standard screens can be wheeled easily into position and then kept there by locking the castors. Multiple screens can be connected together using connecting pieces (LBS-C) in a straight line or at an angle up to 90 degrees. If four or more screens are used an enclosing rectangular enclosure can be constructed.



Flat foot laser blocking screens guarding laser system
Flat foot laser blocking screen

Flatfoot Laser Blocking Screens

These lightweight, Flatfoot Laser Blocking Screens from Lasermet are designed as a semi-permanent passive guard to enclose an area where Class 3B or Class 4 Lasers are in use, either to protect against accidental exposure to the laser beam or for long term blocking of laser radiation at lower power densities. They provide a cost effective and easily-installed, high quality professional solution to your laser blocking requirements. The screens are designed to block all laser wavelengths including high power lasers.

Benefits

  • Blocks all laser wavelengths - up to high power lasers (see specification)
  • CE marked and certified to provides laser safety protection to IEC/EN 60825-4 (Safety of Laser Products Part 4: Laser Guards)
  • Quick and easy to install - two people can install and manoeuvre the screens into place to provide a rapid-build laser enclosure
  • Modular - further screens can be attached to extend or change the enclosure, providing a flexible approach to installations, facilitating potential relocation or expansion

Description

Specially designed and manufactured by Lasermet, each screen measures 1550mm wide x 2000mm tall and comprises of a 20mm sandwich of special lightweight laser blocking material, with a white powder coat finish on both sides. The screen is mounted within a 25mm powder coated steel frame which is in turn mounted on two low profile (5mm high) feet to eliminate any trip hazard. Screens can be connected together either in straight lines or angled at 90° using connecting pieces.


Irradiated Area PEL (T3) 10s PEL (T2) 100s
4mm2 310 MW/m2 170 MW/m2
2000mm2 1.8 MW/m2 1.0 MW/m2


laser safety, laser blocking curtain

laser safety, laser blocking curtain Laser-Blocking Curtain

Laser-Blocking Curtains

Laser-Blocking Curtains are made from Lasermet's specially-developed laser-blocking material and can be supplied ready-made as ceiling or wall-mounted curtains. The material is white on one side and black on the other side and will operate as a blackout screen as well as a laser-blocking screen. Both sides will block laser radiation but if the white side is used as the laser-blocking side a higher specification of blocking will be achieved, making it suitable for higher power lasers.

The material is fireproof. When irradiated with greater than 0.5 MW/m2 it will emit a non-hazardous smoke and may glow, thus indicating that a stray beam is present. Protection times given by the material at various power densities are shown in the specifications below.

 

 

  Irradiated Area PEL (T3) 10s PEL (T2) 100s
Black or White Side 4mm2 3.9 MW/m2 2.2 MW/m2
  2000mm2 0.62 MW/m2 0.35 MW/m2

The top of the curtain has brass eyelets every 150 mm and the curtain is supplied with a stainless steel hook for connecting to a curtain track. The weight of the material is 1.3 kg/sq m. Heavy duty curtain tracks can be supplied for smooth operation and for applications where the curtain needs to be suspended below the fixing points high-quality cubicle curtain track is available.



Laser-Blocking Roller Blind
Laser-Blocking Roller Blind

Laser-Blocking Roller Blind
Encapsulated laser blocking roller blind

Laser-Blocking Roller Blinds

Lasermet Laser-Blocking Roller Blinds are made from the same Lasermet laser-blocking material as the curtains and are made-to-measure to fit any size of window. They are available as standard or encapsulated options.

When using Standard Laser-Blocking Roller Blinds for non-recessed windows it is advisable to allow an extra 50 mm on the height and width, giving an extra 100 mm all round, thereby ensuring that there is no possibility of laser beams passing through the window.

Encapsulated laser safety roller blinds are made using the same laser-blocking material as the standard laser safety roller blinds. However, the roller blind is built into a white finish aluminium frame, which encapsulates the top, both edges and bottom of the blind. This eliminates any possibility of laser beams passing round the sides of the blind, blocks out all light and gives a much neater finish.