Three-level amplification picosecond laser for removing freckles

Abstract

The invention discloses a three-level amplification picosecond laser for removing freckles. The three-level amplification picosecond laser comprises a metal plate rack and a laser power supply. A water tank is mounted at the lower layer of the metal plate rack. A filter pot is mounted on the water tank. A water pump is mounted on one side face of the water tank. The laser power supply is mounted at the upper layer of the metal plate rack. A laser is mounted above the laser power supply. A heat dissipation frame is arranged on one side face of the laser. The three-level amplification picosecond laser has the advantages that through three-level amplification, a pulse width of an output picosecond laser is low, a peak function is high, the time acting on skin is short, the contact range with the skin is small, and shattered melanin is liable to be discharged from a body through skin lymph.

Description

technical field [0001] The invention relates to the field of beauty equipment, in particular to a three-stage amplified picosecond laser for freckle removal. Background technique [0002] In recent years, the emergence, development and successful application of new lasers have brought the development of aesthetic medicine into a new stage, providing a powerful treatment for beauty and freckle removal. The therapeutic effect of laser on human skin tissue is mainly based on the principle of selective photothermal action, that is, when the wavelength of the incident laser matches the inherent absorption peak of the target chromophore itself, and the irradiation time is shorter than the thermal relaxation time of the target chromophore, it will It can selectively destroy the target chromophore without damaging the surrounding normal tissue or causing only slight damage, so as to achieve the effect of non-invasive treatment. At present, lasers of various wavelengths have been de...

AI Technical Summary

Problems solved by technology

However, the pulse width is limited by the development of laser technology. Short-pulse picosecond lasers have just emerged. Most of the equipment is still based on traditional Q-switched nanosecond pulse lasers and continuous lasers. Only a few picosecond laser freckle removal equipment are It is a foreign product, and the single pulse energy and power density are low. It takes a long time to act on the skin during treatment, and the contact range with the skin is large, which is not conducive to the discharge of melanin. Therefore, a three-stage amplified picosecond laser for freckle removal is needed to solve the above problems. question

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