Laser variable pulse width protection system

Abstract

The invention provides a laser variable pulse width protection system, which comprises a laser device, a laser light source, reflectors, a collecting lens, a work tip and a frequency pulse width control system, wherein the frequency pulse width control system is connected with a laser power supply; and the laser power supply is connected with the laser device; and the laser device, the reflector, the reflector, the collecting lens, the reflector and the work tip are sequentially connected to form a laser transmission path. The initial laser work pulse width and the pulse width change rate are automatically adjusted according to the preset frequency and pulse width of laser medical equipment; and meanwhile, a temperature value is monitored, so that dynamic adjustment is arranged; and an optical element is prevented from being damaged.

Description

technical field [0001] The invention relates to a laser variable pulse width protection system, which is used for dental laser medical equipment, and the product belongs to the field of medical equipment. Background technique [0002] During the use of laser medical equipment, since water has a strong absorption effect on laser light with specific infrared wavelengths, it will cause a severe temperature rise in a humid environment and during the action on human tissue, which will cause damage to optical components. Controlling the temperature rise rate generated by the laser by controlling the laser pulse width is a simple and effective way to solve this problem. The preset pulse width change scheme is adopted, combined with temperature feedback to eliminate the damage caused by the sharp rise in temperature. [0003] In the laser structure and optical system, the laser and the working substance, the total reflection mirror, and the output mirror are all optical components,...

AI Technical Summary

Problems solved by technology

[0003] In the laser structure and optical system, the laser and the working substance, the total reflection mirror, and the output mirror are all optical components, and they are all coated with an optical dielectric film. In a humid environment, when the laser is working, the dielectric film will heat up, and the temperature rise will be severe. will cause damage

Mirrors, focusing mirrors, and working tips, as optical components on the laser transmission optical path, are also coated with anti-reflection dielectric coatings, which are also easily damaged

Moreover, because the working tip will be in contact with water mist and human tissue, the end face is easily polluted, and the absorption of laser light will be very severe. The severe temperature rise will bring other effects and affect the normal use of the system.

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