Safety precautions when exposed to laser radiation
Laser radiation must be used with extreme caution. To protect the retina and the lens from damage from the negative effects of laser radiation, be sure to wear protective glasses (this is done by both the physician and the patient)
It is also necessary to follow the recommendations from the instructions, observing a number of other rules.
Goggles that protect against the negative effects of laser radiation
These glasses, in the same way as it is characteristic of lasers, differ in their own spectrum (wavelength index). Only if the lasers emit their radiation, then the glasses, in turn, filter it.
When choosing glasses, take into account the laser wavelength of the equipment with which they work. Allocate glasses designed to protect against: red, infrared and ultraviolet exposure to laser radiation
Also, depending on the purpose, glasses are procedural, intended for the patient, as well as those that are necessary for the doctor. Patient spectacles are predominantly small and do not contain temples. They are only needed to protect the eyeballs.
Safety basics when exposed to laser radiation:
- Only those specialists who are familiar with safety precautions when working with laser installations can be allowed to work;
- Accordingly, only a doctor with an appropriate qualification level can work with medical lasers;
- Before starting work, study the instructions;
- It is not permissible to place any foreign objects in the path of the laser radiation. In particular, those that shine, as this will result in the reflection of the radiation;
- It is unacceptable for reflected and direct radiation to enter the eyes;
- Do not look at the radiation source: even invisible laser beams cause eye damage;
- Safety glasses must be worn throughout the entire procedure;
- Since the radiation of the infrared spectrum is invisible, the "Start" button is not turned on until the emitter is directed into the affected area;
- The switched on device is never left unattended. The same rule often applies to a switched-off installation. The best solution is to equip the device with a key lock, so as not to provoke the temptation to "try" the work of strangers.
Requirements for laser systems:
Devices must have: registration certificate, certificate, warranty card. Also, the device is accompanied by a user manual and a technical data sheet.
Choice of glasses
So, in order to ensure maximum safety when working with a laser, safety glasses should be selected based on the operating wavelength of the radiation generated. Depending on the intended purpose of the equipment (cutting, drilling, marking), this parameter will differ significantly, and therefore the protection must correspond to specific indicators.
The protective properties of special glasses for a laser are based on the principle of optical screening of rays located in a certain part of the spectrum. As a result of the competent selection of the material of manufacture and the degree of shading, goggles block laser radiation waves that are dangerous to eyesight, while not blocking other colors. This allows you to easily configure the equipment and carry out direct work, eliminating the risk of eye injury. This is especially true when performing fine processing of materials or carrying out cosmetic procedures.
Another criterion for choosing eye protection against the negative effects of laser radiation is the selection of products by type of installation. The point is that fiber and solid-state lasers operate at different wavelengths with analogs using gases (CO2 installations). In the first case, the most widely used machines are 850-1300 nm, and in the second it is 10.6 microns. The information necessary for making the right choice of protection is applied by the manufacturer directly to the products. One of the main parameters in this case is optical density (OD), which reports on the degree of attenuation of radiation passing through the material.
Choice
When buying protective glasses, you need to focus on important nuances.
It is necessary to determine the wavelength of the output radiation.
It is also important to determine the following parameters: output power, duration, frequency.
Calculate the maximum holding time.
Choose a suitable shape.
Power must be determined based on the activity for which the accessory is purchased. So, for epilation, a small power is enough, and for cutting metal, this indicator will need to be increased. Accordingly, the more power, the higher the cost.
See below for an overview of laser goggles.
What are laser glasses for, how to choose the right one
Everyone who purchased a laser level probably wondered whether it is worth buying laser glasses if they are not included with the device. Let's take a closer look at this issue.
In fact, laser goggles have only two purposes:
1. Protective function
Lasers that are used in laser levels have a wavelength of 635 to 650 Nm, and therefore do not pose any danger to the human body and skin, but such a delicate organ of vision as the human eye can be influenced quite strongly. Therefore, it is recommended to use laser goggles when working with laser devices.
It should be noted right away that laser glasses are not a guarantee of 100% protection, but only an additional obstacle to the short-term exposure of the laser beam to the retina and the lens of the eye.
Glasses should be chosen in accordance with the parameters of the radiation wavelength and the color of the laser, so for a red laser - red glasses, and for green, respectively, green glasses.
IMPORTANT! Do not under any circumstances look at the working emitter, and try to avoid getting into the eyes of the reflected beam from glass or a mirror, even when wearing special glasses for working with a laser tool. In general, the second class of laser used in laser levels and rangefinders is less dangerous than, for example, in powerful laser pointers with a visible spectrum of radiation and laser power above 20 mW, which can leave thermal burns on human skin, not to mention the eyes
In general, the second class of laser used in laser levels and rangefinders is less dangerous than, for example, in powerful laser pointers with a visible radiation spectrum and laser power above 20 mW, which can leave thermal burns on human skin, not to mention the eyes.
2. Improving the visibility of the laser beam
The main function of this optional accessory.
Special light filters are built into the glasses for the laser level, which do their job quite well, therefore, when marking at 15-25 meters in a strongly lit room, you can clearly see the laser line, since the light of other waves that do not fall into the range from 635 to 650 Nm are filtered out.
It should be noted that you can only feel real comfort and benefit from them indoors, on the street there will be no such pronounced effect! It is possible to work on the street during the day without problems only with a special receiver.
Goggles for laser rangefinder are no different from goggles for laser levels, so if you already have some glasses, then you can safely use them with these tools.
A short video review of good laser glasses
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