If there is suspicion of incorrect product labelling or doubt about the classification of a product, measurements should be made in accordance with the requirements of the British standard to determine the actual laser class to which the device should be assigned. There is no simple test available to the public to determine the radiated power of a laser product. A visual inspection of the laser product or its laser power does not indicate the corresponding class for the device. Many modern devices contain a laser (e.g. computer, DVD player, laser printer. Nevertheless, the consumer would generally not have access to the LED in his normal use. Commercial laser pointers typically emit red light (wavelengths between 630 and 670 nm), green color light (532 nm) or blue light (about 445 nm). In the interest of public safety, local authorities may impose requirements on the site hall licence to ensure that the public is not harmed by activities at the site. Local authorities across the UK manage the use of lasers and other special effects in different ways. Usually, the most “aware” local authorities (either because of bad experiences with one or more laser suppliers in the past, or because they have large entertainment venues in their geographic area that regularly use lasers) seem to impose stricter requirements on the site operator to ensure public safety. Licences to operate at these locations may include a written requirement that a safety review be conducted by a qualified third party prior to use, or that laser installation documentation be sent to the local authority for inspection.
In the case of audience analysis, some local authorities may establish additional control measures that must be implemented to ensure public safety. This may include the requirement that the use of lasers exposing the public be monitored by an external safety specialist during performance and stopped if levels change from those previously agreed upon during installation. Note: Police enforce all offensive weapons laws (e.g., BB guns, crossbows and knives). The use of lasers in public can have a detrimental effect on the quality of life of community members. For example, the police may issue a joint protection notice for anti-social behaviour. Laser pointers that emit light with a laser wavelength closer to the maximum response of the eye are therefore able to produce the corresponding visual stimulus, such as the aversion reaction, at lower radiation powers. Class 1 laser devices are safe under reasonably foreseeable operating conditions, including long-term intrabeam direct viewing, including when using optical viewing instruments such as eye magnifiers or binoculars. For Class 1 laser products, the radiant power of the accessible laser beam (emission) is always less than or equal to the maximum permissible exposure value. Therefore, for Class 1 laser products, the power output is below the level at which eye damage is suspected.
Exposure to the beam of a Class 1 laser does not result in eye injury. Class 1 lasers can therefore be considered safe. Regardless of local interests/interventions, there are health and safety laws that establish the minimum requirements for laser safety management. Since April 2010, the maximum amount of laser light to which workers can be exposed (MPE) has been regulated. UK regulations make the MPE limits set out in EC Directive 2006/25/EC mandatory. He was the son of the Duke of Nassau. It is a criminal offence to allow workers to expose themselves to laser light beyond these limits. The laser also usually produces a very narrow beam that diverges or propagates very little as the distance from the source increases. This low divergence property means that the laser`s power is strongly directed, forming a pencil-shaped beam that always appears as a small dot when shining against a surface, even at distances of 100 m or more. While not routinely allowed, if sufficiently robust safety evidence can be provided for a facility that exposes an audience to laser light, these types of effects have been and can be used with sufficient care without violating laws or harming people.
This publication is available at www.gov.uk/government/publications/laser-radiation-safety-advice/laser-radiation-safety-advice Class 4 lasers are not designed to be used as laser pointers. It is recommended that a laser pointer pen be no larger than a Class 2 laser product. Consumer products must not be Class 3B or Class 4 laser devices. People targeting transport companies with laser devices could be jailed for up to 5 years under new laws aimed at protecting the public. Class 3B laser products approaching the upper limit of the class may cause mild skin lesions or even present a risk of ignition of flammable materials. Examples of Class 3B products include lasers used for physiotherapy treatments and many research lasers. Class 1M laser products are typically products that produce large diameter beams. Therefore, only a small part of the entire laser beam can enter the eye. As with a Class 1 laser product, they are safe with the naked eye under reasonably foreseeable operating conditions.
