Lasers propagates along one direction and has the characteristics of good monochromaticity, strong directionality, and high brightness. Due to the high brightness of lasers, the energy produced by low-power lasers is almost the same as sunlight. Among human organs, the eyes are most susceptible to laser damage due to the focusing effect of the human eye:
Visible light (400-700nm) and near-infrared light (IR-A, 700-1400nm) can penetrate the eye and cause irreversible damage to the retina, optic nerve and center of the eye;
Invisible light mainly causes peripheral eye damage, ultraviolet rays (180-400nm) can damage the cornea and lens, mid-infrared rays (IR-B, 1400-3000 nm) may penetrate the eye surface and cause cataracts, and far-infrared rays (IR-B, 1400-3000 nm) may penetrate the eye surface and cause cataracts. -C, 3000 nm-1 mm) will damage the outer surface of the eye and cornea, burn the retina, resulting in decreased vision or even blindness;
The secondary beams are located at or near the work area. These beams originate from the reflection of the primary beam on various surfaces. The intensity of the secondary beams at different angles is also sufficient to cause damage to the eyes;
The greater the energy of the laser, the greater the damage to the eyes; the smaller the angle at which the laser irradiates the eye, the greater the damage, because the smaller the incident angle, the smaller the spot imaged on the retina, and the more concentrated the energy density;
Retinal damage is more likely to occur at night than during the day because the pupil dilates at night and the retina receives more laser energy when exposed to laser radiation of the same energy density.
According to the wavelength, output power and beam characteristics of the laser, the safety level of laser equipment is divided into categories from Category 1 to Category 4. The higher the number, the more potentially harmful the laser system is.
| Class 1: | Class 1 laser safety equipment is basically safe. Under normal operating conditions, these lasers present no potential health hazard. These products are designed with special considerations for safety to prevent user exposure to laser radiation during laser operation. Among IPG products, LSS and GLPN-500-R belong to Class 1 laser safety equipment. |
| Class 2： | Class 2 laser safety devices have lower power levels, typically less than 1 mW. The wavelength is visible light (400-700 nm). The instinctive blinking reaction to avoid bright light can protect users, but it is still potentially dangerous if they are looked at with the naked eye for a period of time. Class 2 laser safety equipment must be labeled with the word "CAUTION". |
| Class 3A: | Class 3A laser safety devices, which typically operate up to 5 mW, also require a "Caution" label, sometimes upgraded to a "Danger" label. If the gaze is only for a moment, the instinctive blink reflex will protect the user, and there is a small risk of eye damage during the blink reflex. But if it is staring, for example during optical calibration, staring at such a beam for a few seconds may cause immediate damage to the retina. |
| Class 3B: | Generally speaking, the laser itself does not produce harmful diffuse reflections. Class 3B laser safety equipment creates hazards when looking directly into or into the secondary beam. Class 3B laser safety equipment must bear a "DANGER" label. It is recommended to wear eye safety protection when using this type of laser. |
| Class 4: | Many industrial and scientific lasers are Class 4 laser safety devices, which are harmful to the eyes and skin. The primary beam, secondary beam and diffuse reflection are all dangerous. All Class 4 laser safety equipment must carry a "DANGER" label. Class 4 laser safety equipment may also cause hazards in and around materials and flammable materials. Eye safety protection must be worn when using this type of laser. |
JTBYShield's 1mw Laser Products all have Class 1 laser class test certificates. Under normal operating conditions, these lasers have no potential health hazards. These products are designed with special considerations for safety to prevent user exposure to laser radiation during laser operation.
To protect ourselves and others, please note when using Lasers:
All personnel in the operating area, including those not directly using the laser system, must wear appropriate eye and other safety protection equipment at all times before starting up and while the laser is in operation.
Laser safety glasses are all effective at specific wavelengths. According to the machine laser wavelength, modulation mode, maximum exposure time (maximum time considered), maximum irradiation power density (W/cm2) or maximum irradiation energy density (J/cm2), maximum allowable exposure (MPE) and optical density (OD) to choose appropriate laser safety glasses.
Precautions for Lasers use:
1. When the power is on, do not look directly at the laser output port;
2. When assembling the laser and all related optical accessories, please keep the laser away from sight;
3. Never install or remove optical fibers or collimating lenses when the laser is on;
4. The interaction between the laser and the material being processed will also generate high-intensity ultraviolet and visible light radiation. Ensure that the size of the laser housing is appropriate to avoid eye damage caused by visible light radiation;
6. Avoid using lasers in dark environments;
7. Do not start the laser without connecting the coupling fiber or similar optical output connector;
8. The operator should turn on the warning light to notify that "the laser is in use" and control the laser operating area;
9. Incorrect laser operation can damage your eyes. In work and life, laser protection is very important!
Contact information:
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