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Illuminated Laser Safety Signs
Class 4 Warning Sign
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LSS10 Lightbox Illuminating LSS10C Caution Sign
Thorlabs offers an LED light guide laser safety lightbox and signal word laser safety signs. Laser safety signs are required for laser-controlled areas and indicate to personnel when and where a laser system is in use. Offered in Notice, Caution, Warning, or Danger signal words and constructed from high-impact polystyrene (HIPS), Thorlabs' laser safety signs allow the user to indicate wavelength and optical density (OD) specifications of the laser emission. These signs, which are designed to meet IEC and ANSI laser safety standards, are appropriate for standalone use, or they can be uniformly illuminated using the LSS10 lightbox for increased visibility. The LSS10 lightbox can be mounted to virtually any wall in either left- or right-handed orientations. The front of the lightbox can be opened via a hinged panel, allowing laser safety signs to be easily inserted. The lightbox accepts 10” x 14” (25.6 cm x 35.8 cm) signs.
Laser Safety and Classification
Safe practices and proper usage of safety equipment should be taken into consideration when operating lasers. The eye is susceptible to injury, even from very low levels of laser light. Thorlabs offers a range of laser safety accessories that can be used to reduce the risk of accidents or injuries. Laser emission in the visible and near infrared spectral ranges has the greatest potential for retinal injury, as the cornea and lens are transparent to those wavelengths, and the lens can focus the laser energy onto the retina.
Safe Practices and Light Safety Accessories
Lasers are categorized into different classes according to their ability to cause eye and other damage. The International Electrotechnical Commission (IEC) is a global organization that prepares and publishes international standards for all electrical, electronic, and related technologies. The IEC document 60825-1 outlines the safety of laser products. A description of each class of laser is given below:
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To insert a laser safety sign, lift the frame on the side with hinges, then insert the appropriate slide.
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LSS10 Side Panel Showing Hinges, Brightness Adjuster Wheel, Input for External Interlock, and Rocker Power Switch
The LSS10 lightbox illuminates our laser safety signs, which are sold below. Using LED light guide technology, our lightbox offers bright, uniform, efficient illumination (5300 K) with low energy consumption from 8 to 15 W. Rated for 100 to 240 VAC, the LSS10 can be used straight out of the box and features a brightness adjuster wheel and rocker power switch. The LSS10 lightbox can be mounted to virtually any wall in either left- or right-handed orientations. A convenient line cord latch prevents the AC line cord from disengaging from the unit. The LSS10 lightbox is shipped with a region-specific power cord based on the location the order is placed.
This lightbox accepts 10” x 14” signs, such as the ANSI and IEC compliant laser safety signs available below. To insert a sign, simply lift the frame on the side of the lightbox with hinges and insert the appropriate sign (see image to far right).
Interlock-equipped laser systems can be interlocked with the lightbox to prevent laser use when the lightbox is not illuminated. An interlock circuit can be connected to the lightbox interlock either externally or internally. The external interlock connection is achieved via a 2.5 mm phono plug (included). For information on using the safety interlock, please refer to section 4.2 of the manual.
Thorlabs' 10" x 14" laser safety signs are directly compatible with our LSS10 lightbox (sold above) and are also appropriate for standalone use. Signs are available with Notice, Caution, Warning, or Danger signal words, as well as Class 3B Warning, Class 4 Danger, and Class 4 Warning designations, all of which are ANSI Z535 certified. The appropriate choice of sign should be determined in consultation with your laser safety officer or a qualified laser safety authority who is familiar with your setup. These signs are constructed from high-impact polystyrene (HIPS).
Note: These signs are provided without a wavelength or OD specified. Wavelength, OD, and other relevant information can be written on each sign using a marker. You must customize the sign for your specific wavelength and OD as required by ANSI Z136, IEC 60825, and other pertinent laser safety regulations.