Safety of Class 3B visible-beam lasers - Laser Safety Facts
网页Class 3B visible-light lasers are hazardous for eye exposure. They can cause burns to the retina. A person cannot turn away or blink fast enough to prevent retinal eye injury from a nearby Class 3B laser. At the low end, around 5 to 50 milliwatts, a Class 3B laser poses a moderate risk of eye injury.
Laser classification table - Laser Safety Facts
网页For visible-beam consumer lasers, there are four main classes. Each is described in more detail here: Class 2, Class 3R, Class 3B and Class 4. The first two Classes are relatively safe for eye exposure; the last two are hazardous. The chart below shows how the eye injury hazard increases as the laser’s power increases.
Laser safety - Wikipedia
网页To control the risk of injury, various specifications, for example 21 Code of Federal Regulations (CFR) Part 1040 in the US and IEC 60825 [1] internationally, define "classes" of laser depending on their power and wavelength.
激光安全等级怎么定义，一篇文章带你了解激光的等级制度 - 知乎
网页2022年4月8日 · 对于可见光激光器，主要有四类，每一类在这里有更详细的描述:Class 2 第二类, Class 3R 第3R类, Class 3B第3B类及Class 4第四类。 前两类对于眼睛暴露是相对安全的，后两类是危险的。
Laser Safety: Class 1, 1C, 1M, 2, 2M, 3R, 3B, and 4
网页2018年9月14日 · Class 3B. These laser products are considered more hazardous and relatively unsafe under direct and specular reflection viewing conditions. A Class 3B laser product, however, is normally not a fire hazard, diffuse reflection hazard, or a laser generated air contaminant (LGAC) production hazard.
Laser Classification Explanation - Lawrence Berkeley National …
网页2018年6月4日 · Class 3B A Class 3B laser produces light of intensity such that the MPE for eye exposure may be exceeded and direct viewing of the beam is potentially serious. Diffuse radiation (i.e., that which is scattered from a diffusing surface) should not be hazardous.
激光安全标准与激光分类解读 - LumiMetriC. Com
网页3B级激光（Class 3B） 如果3B级激光直接射入眼睛，可能会造成危害，但若激光光线反射于如纸张这样的粗糙表面上，则不会有害。 对于在一定范围内（从315纳米至远红外区）工作的连续波激光，其允许的最大功率为半瓦（0.5W）。
Understanding Laser Classes & Laser Safety | KEYENCE America
网页Class 3B lasers are lasers that use intermediate power from either 5-500mW CW or pulsed 10J/cm2. Operating a Class 3B laser incorrectly can result in eye damage or skin burns. Because of this, Class 3B lasers require …
ANSI Z136.1 - Safe Use of Lasers | The Laser Institute
网页As the parent document of the Z136 series of laser safety standards, the Z136.1 is the foundation of laser safety programs for industry, military, research and development (labs), and higher education (universities). Provides guidance for individuals who work with high power Class 3B and Class 4 lasers and laser systems, for example:
Laser Class | Board of Laser Safety
网页Class 3B denotes lasers or laser systems that can produce a hazard if viewed directly, including intrabeam viewing of specular reflections. Normally, Class 3B lasers will not produce a hazardous diffuse reflection from a matte (not shiny) target.