1. What is a laser?
Laser is the light produced by certain substances when they are excited by energy.
This substance can be a gas, a liquid or a solid, and there are approximately hundreds of substances that have been discovered that can be used to produce lasers. However, there are only a few commonly used in the beauty field, and the name of each laser is often named after this substance, and the laser wavelength generated by each substance is constant.
For example, the CO2 laser that you most often hear about is the excitation of CO2 production, the wavelength is about 10600nm; The most famous dye laser for the treatment of red blood is the excitation of a certain dye (liquid), and the wavelength is about 595nm.
A medical laser is quite expensive, is this high level? … Of course, this thing is very high energy, even if you can afford it, you can’t go home and use it yourself
2. What is the difference between laser and photon?
That’s quite a difference
First of all
Laser is monochromatic, the professional point is that it has only one wavelength, such as the just mentioned dye laser is 595nm, this wavelength of light is red, and the wavelength of CO2 laser is 10600nm, this wavelength is invisible to the naked eye;
And photons are a mixture of wavelengths! Also called composite light ~ General beauty is commonly used between 500nm~1200nm ~ Part of this band is visible to the naked eye, they are yellow to red ~ part of it is infrared light, invisible to the naked eye!
secondly
The laser is not divergent, or the energy can be concentrated in one point, so the energy can be higher ~ the nature is more like the laser pointer we played when we were children:
And the photon is divergent, and we usually see the same nature of the light, the sun
From the above explanation, it should not be difficult to see that, relatively speaking, the manufacturing technology of laser will be more complicated. Of course, the technical complexity does not mean that it must be stronger than the photon in the beauty effect. In fact, the two have their own advantages
2. What are the advantages of laser and photon?
Because the laser wavelength is the same, the spectrum is single (you can understand that it is a color), resulting in the organization it can act on each time is relatively simple! As I said earlier, light is very sensitive to color, each band of light has its own love of color, like melanin love to lift melanin, like red blood love to lift red blood, you want to change it for someone, it will say “concubine can’t do it!”
In addition, because the energy of the laser is more concentrated, its therapeutic effect is the strongest.
For example, the wavelength of CO2 laser is 10600nm, which is the wavelength that water is easily absorbed, so its main target is the tissue containing water (that is, all skin tissue), and the wavelength of alexandrite laser is 755nm, which is the wavelength that melanin is easily absorbed. So its main target is the tissues that contain melanin (such as spots, underarm hair follicles).
The photon is just the opposite, it is left and right hug to cheat and play with women’s feelings of the man! Because it has a wide spectrum (you can understand that there are many colors of light), so any color can be appreciated, as long as it is touched by it, regardless of melanin or red blood, it is open to anything.
It is precisely because the photon will not refuse anything, rain and dew, resulting in the energy it can distribute to each “girl” is relatively small. After all, one’s energy is always limited…
In summary, the laser is a strong and refers to where to play where the tough straight man, and the photon is a gentle deception of women’s feelings of men who will not resist the rain and dew!
The advantage of laser is that the effect is specific, the energy is powerful, the effect is more obvious, and the immediate effect is not too much. But at the same time, the risk is greater, if not well controlled, the damage to the skin is also greater! The advantage of photons is that they can solve a variety of problems at the same time, such as melanin, red blood, thick pores, etc., only you can’t think of it without it! And because the energy is dispersed, it is milder, so the possible side effects are smaller. However, some projects that require high intensity heat energy can not be achieved, such as the skin function of dot matrix laser.
