What are the safety standards for lasers?

With the development of laser technology, laser distance sensors have become more and more common in production and life. The laser range sensor has the characteristics of high measurement accuracy and fast measurement speed, and can be applied to various high-precision measurements. However, when choosing a laser distance module, we must also pay attention to the type of laser and whether it will cause harm to the human body. The following are some of the standards we have compiled for laser classification：

Class I: Not considered a dangerous good.

Type IIa: This type of laser is classified into the visible light band of 400 to 710 nm. It is not dangerous to observe for a fixed time (1,000 seconds), but chronic observation exceeding 1,000 seconds is judged as dangerous.

Class II: This class of lasers is in the visible light band of 400 to 710 nm. Chronic long-term beam observation is judged as dangerous. In general, this type of protection can be protected from prolonged observation through the eye's aversion (blink).

Class IIIa: Although it depends on the radiation level, both chronic and transient laser observations are dangerous. It is also dangerous to look directly at the laser using optical instruments.

Class IIIb: Even a moment, direct laser light can cause danger to the skin or eyes.

Class IV: Even if the laser is directly on the skin or eyes, it will be dangerous even for a moment, and its diffuse reflection light will be harmful to the skin and eyes.

The laser ranging sensor produced by Chengdu JRT Technology Co., Ltd. uses a Class II safety laser, so you can use it with confidence.