Laser Blocking Portable Screens
Most Class 4 and many Class 3B lasers are dangerous and can present an eye hazard over very long distances. Portable laser blocking screens provide laser-safe boundaries to be constructed around laser area in a rapid, movable and non-permanent form.
Laser blocking screens can provide safe, temporary, portable, modular screening for laser use in industry, manufacturing, welding and medical applications. They can be used to form modular laser walls and laser black-out screens, or to form temporary laser enclosures.Standard Laser-Blocking Screens
Standard Laser Blocking Screens are constructed out of the same laser blocking material as the laser blocking blinds and curtains. They 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) 100s |
|White Side ||1mm2 ||3 MW/m2 |
| ||500mm2 ||0.7 MW/m2 |
|Black Side ||1mm2 ||1 MW/m2 |
| ||500mm2 ||0.5 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.