Safety

LPS-Laser SA adheres to the Safety codes and Regulations to German and European standards, ensuring optimal production and safety of all audiences.
Our gauze screens are treated with fire retardant chemicals according to Government regulation.

Laser Classification

The government recommended safety practices for a given laser system which depend on its classification. The following highlights the criteria that are used to classify lasers, as well as the key safety considerations when operating a system with the indicated classifications. The reader is directed to the "Code of Federal Regulations" for a Comprehensive discussion of these safety topics.

Classification Criteria

Wavelength:

If the laser is designed to emit multiple wavelengths, the classification is based on the most hazardous wavelength.

Output Characteristics:

For continuous wave (CW) or repetitively pulsed lasers, the average power output (Watts) and limiting exposure time inherent in the design are considered.

For pulsed lasers the total energy per pulse (Joule), pulse duration, pulse repetition frequency and emergent beam radiant exposure are considered.

1. Class 1 all Wavelengths safe for the human eye
2. Class 1M 302, 5 nm - 400 nm safe for the human eye if no optical instruments are used; not safe if optical instruments are used
3. Class 2 400 nm - 700 nm, bis 0,25 s safe for the human eye because of aversion response and eyelid closure reflex; not safe if optical instruments are used
4. Class 2M 400 nm - 700 nm, 0,25 s eyelid closure reflex; depending on whether it is a divergent or flared beam, it might be unsafe with optical instruments
5. Class 3R 400 nm - 700 nm, 0,25 s 302,5 nm - 400 nm, 700 nm - 106nm,100 s exceeds the maximum tolerable radiation; radiation is max. five times higher than the limit for accessible radiation of Class 1 (respectively Class 2); dangerous for the human eye
6. Class 3B all Wavelengths laser facilities of power up to 0, 5 W dangerous for the human eye and in certain cases for the skin
7. Class 4 all Wavelengths

Laser facilities of power more than 0, 5 W very dangerous for the human eye and dangerous for the skin; additionally there is the danger of combustion.

Generally we follow the German safety specifications, which are more stringent that the local safety regulations require:

• DIN EN 60825-1 "Sicherheit von Laser-Einrichtungen; Teil 1: Klassifizierung von Anlagen,
• Anforderungen und Benutzer-Richtlinien" www.din.de
• E DIN 56912 "Showlaser und Showlaseranlagen; Anforderungen und Prüfung" www.din.deoder DIN-Taschenbuch 342 "Veranstaltungstechnik" http://www.dthg.de
• Berufsgenossenschaftliche Vorschrift Laserstrahlung BGV B2:
  • http://www.pr-o.info/makeframe.asp?url=/bc/uvv/93/inhalt.htm or
  • http://www.verwaltung.uni-dortmund.de/arbeitsschutz/internet/Gesetze/GUV/uvv2_20.pdf or
  • http://www.lzk-bw.de/PHB/handbuch/download/D37341-678608023-4499.doc
• Merkblatt "Lasergeräte in Diskotheken und bei Show-Veranstaltungen"
  • http://www.lfas.bayern.de/technischer_as/medizinprodukte_strahlensch/strahlenschutz/LASER/laser.pdf
• Merkblatt "Disco-Laser"
  • http://www.bgn.de6/26 51741140_V_1_0_DE.DOC
• DIN EN 12254, "Abschirmungen an Laserarbeitsplätzen, sicherheitstechnische Anforderungen und
• Prüfung" www.din.de
• Gerätesicherheitsgesetz (GSG) http://bundesrecht.juris.de/bundesrecht/techarbmg/gesamt.pdf
• Strafgesetzbuch § 223 ff: http://bundesrecht.juris.de/bundesrecht/stgb or
  • http://bundesrecht.juris.de/bundesrecht/stgb/gesamt.pdf
• Further useful links:
• Uni Essen http://www.ilp.physik.uni-essen.de/doebele/projekte/Archiv/laserschutz/laserschutz.pdf
• Sicherheitsinformation Laser-Sachverständiger http://www.goebel-laser.de/pdf/info%20showlaser.pdf
• Selbstbau-Laser http://pluslucis.univie.ac.at/FBA/FBA95/Matischek/laser3.pdf

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