Green Laser Pointer Products Have Directional Property

By Author: janney
Total Articles: 32
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When the laser parallel to the same degree, different wavelengths of laser have different focus limit, 10 640 far-infrared laser focus limit is about 532 green 20 times, as in other words, the same power, the 532 in the unit area of radiated power is 10 640 20 times, the gap is quite large. In general, the longer the wavelength of the laser, the Focus on the limit will be greater. 3 with the penetrating heat effect: laser destruction, mainly energy density. Therefore, the lower penetration of the laser, the energy density can have a better performance. The automatic frequency hopping technology used by green laser pointer can effectively block interference from other radio-frequency signals.However, the laser wavelength and penetration, and there is no absolute relationship between, such as air, the visible range is the longer the wavelength the stronger penetration. But in the long-wave infrared stage, it has significant thermal effects, so it's penetrating to become weak. Glass is also true, CO2 laser can be carved glass, but the 532 laser can not. So, for ...
... this, should first understand the characteristics of the target material impact on the penetration of various wavelengths. Blue Laser Pointer products have directional property.4 absorption: this is very important, different colors of objects on the various wavelengths of laser absorptive capacity has a very significant difference. With the absorption of the worst color, and white; by the absorption of the most obvious anti-color, and black rather. For example, the green laser is easy to point the red matches, and match point green is more strenuous. 5 Ionization: This part is mainly UV laser. UV laser with a high single-photon energy, so it can make the target ionization. For organic life forms, the UV laser ionization effect will destroy the activity of proteins and enzymes, which is the principle of UV light disinfection. So, UV laser destruction of life is undoubtedly one of the body of the strongest wavelength. The users don’t have to point the emitter of 200mW Laser Pointer to the receiver when use a green laser pointer.6 the sensitivity of the human eye: the human eye is about 550nm wavelength is most sensitive to yellow-green light, so in the visible range, the closer the wavelength of the laser, its lethality, the stronger the human eye. Seven. II and III laser pointer laser class difference between the Class Ⅰ laser with low output (power less than 0.4mW), regardless of the conditions under which the eyes and skin, will not exceed the MPE value, even after focusing through the optical system is not exceed the MPE value. Can guarantee the safety of the design without special management. Typical applications such as 100mW laser pointer , CD player, CD-ROM devices, geological prospecting equipment and laboratory analytical instruments. Class Ⅱ - "Caution" Class II level: Low output visible 5mW laser pointer (power 0.4mW-1mW), who closed the eyes of the reaction time of 0.25 seconds, use this time to calculate the exposure value can not exceed the MPE. Usually less than 1mW laser, normal exposure to the laser beam on the retina of the eye will not cause permanent damage, but will lead to dizziness can not think, with closed eyes to protect, can not say completely safe, not directly in the beam observe, do not use Class II laser direct exposure to other people's eyes, to avoid the use of Class II laser observation devices afar. Typical applications include classroom presentation, laser pointer, aiming devices and range finders, etc.