The light effect of laser pointer

In Hong Kong, in general laser safety standards may refer to the International Electrotechnical Commission (IEC) standard (IEC 60 825), American National Standards (ANSIZ136) or other laser safety standards. ICE60825.1: 2001 International Electrotechnical Commission standard laser products can be divided into the following categories: Class I laser products: this laser to operate in the reasonably foreseeable operating conditions is safe, including the class of laser products: the use of optical instruments stare into the beam. (B) the class 1M laser products: in the reasonably foreseeable operating conditions the operation is safe, but use the the optometric class laser products.  green laser pointer  is suitable to the customer who needs the high power.
Instrument stare into the beam, it may cause harm. (C) The Class 2 laser product: This laser in the wavelength range of 400nm to 700nm, usually through the eyes of the class of laser products: light avoidance response (including the blink of an eye) to provide adequate protection. This reaction should be reasonably foreseeable operating conditions to provide adequate protection, including the use of optical instruments to stare into the beam. (D) The 2M laser products: this laser in the wavelength range of 400nm to 700nm, usually by eye on the class of laser products: light avoidance response (including the blink of an eye) to provide adequate protection. However, if the users use of optical instruments stare into the beam, will cause greater harm. For green laser pointer has the basic and practical function of a torch.
Class 3R laser products: this laser in the wavelength range from 302.5nm to 106 nm, stare into the beam potential class laser products: hazard, but the risk is lower than the Class 3B laser, the manufacturing requirements and utilization control measures less than the Class 3B laser. Such products up to the emission limits shall not exceed the wavelength range of 400nm to 700nm products, in other wavelength range has not allowed more than five times the products. (F) Class 3B laser products: laser product class: look directly at the beam will usually cause harm to the laser (ie, at a nominal distance against the eyes). In general, the diffuse reflectance of the laser to the naked eye are harmless. (G) Class 4 laser products: produce a hazardous diffuse reflection laser can burn the skin and lead to fire, so that the class of laser products: such products must be careful. The cost performance of green laser pointer is high enough.
The laser safety standards in many countries in line with international standards of the International Electrotechnical Commission (IEC) laser safety standards. IEC standard 825-1 (1993) is formulated for manufacturers, at the same time also provides the user with protection guidelines. All laser products must be calculated for the laser safety classification level, where a 2-4 products must have warning signs. Regulations about the use of laser equipment, laser use is very extensive, but now there is no specific control regulations for the use of laser equipment. Therefore, the use of laser safety relies mainly on the user's self-regulation. The following is related to the laser equipment regulations and safety rules: 1. Performed by the Electrical and Mechanical Services Department, the Electricity Ordinance and Electrical Products (Safety) Regulations ", the regulations covering laser devices such as the household appliances supplies, such as laser player. This exclusive green laser pointer is highly recommended for the customer.
Performed by the Customs and Excise Department, the Consumer Goods Safety Ordinance, the cordless laser aids. Places of Public Entertainment Ordinance, executed by the Food and Environmental Hygiene Department, the part covered by the Ordinance, including a laser show or performance. Amusement Game Centres Ordinance, executed by the Television and Entertainment Licensing Authority (TELA). About the contents of game control measures involving the use of laser. The Factories and Industrial Undertakings Ordinance and the Occupational Safety and Health Ordinance "by the Labour Department. At present, there is no special license requirements for the importation and sale of laser products. And the light effect of  laser pointer    will be more obvious in the dark area.