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Blocking screens

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Lasermet has released a new range of laser blocking screens. The screens are designed to enclose areas where Class 3B or Class 4 lasers are in use, to protect against accidental exposure or to provide long-term blocking of laser radiation at lower power densities. Lasermet laser-blocking screens are available in standard and heavy-duty versions, both of which can be used to block lasers of all wavelengths.

The screens consist of a screen of special laser-blocking material, which seals to the floor, supported by a black-coated steel framework, mounted on lockable castors. Multiple screens can be connected together in line or at angles and can form a complete enclosure if required. Protection times in excess of 100s are achieved for the following power densities and areas: 3 MW/m2 over 1mm2 and 0.7 MW/m2 over 500mm2.

Heavy-duty screens are available for high power, multi-kilowatt materials-processing lasers. These are made from a 50mm thick sandwich of steel and a special lightweight laser-blocking material mounted on a powder-coated steel framework, with heavy-duty lockable castors. By connecting a number of heavy-duty screens together to fully surround a class 4 laser, the system can then be considered under class 1 safety regulations. Protection times in excess of 100s are achieved for the following power densities and areas - 61 MW/m2 over 4mm2and 2.7 MW/m2 over 2000mm2.

All Lasermet laser-blocking products conform to legal requirements for the protection of employees and third parties from stray laser radiation. They are CE marked and certified to EN 60825-4 (Safety of Laser Products Part 4: Laser Guards).

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