Here is a bit, can “see” the energy for the green laser weapon is a serious loss, but also exposed their own design, in any case, you may have to make it look more dark and better.In addition, in order to maximize the killing effect of laser weapon, will allow the energy to focus as much as possible in time and space, so it will not “slowly”, nor “thick”.
More likely is that if the eyesight is good, you can see a less bright line, and then quickly disappear, but this line is not you see green laser, but the laser through atmospheric ionization trails after left. When you see when the strike has been completed.
First, if green laser the use of weapons is not visible, then what optical phenomena can not see, suddenly the target is destroyed. If it is visible in the Tyndall effect under the condition of strong observation is a chance to see the laser beam.
If people are observation targets, since the speed of light is too fast is no chance to see the green laser. The laser beam is generally considered a Gauss light, fundamental mode and higher-order mode points, is difficult to appear a line slowly coarsening situation. Along the direction of the incident laser, should be like the stone into the water, the water spread feeling.
The main problem is directional and intensity resolution problems. First, you green laserto hard alignment of the pupil. The astronauts only pointed the human eye can collect the laser signal.
The second is the strength of human sensitivity to resolution of the problem. The single photon state. However, the premise is the absolute darkness, so in this case even if the contrast of a photon is infinity. Astronauts will see a lot of radiation of the earth in space, then only the green laser energy compared with the background radiation to the human eye under the condition of resolution can be found. A better solution is to use 10Hz to improve the identification of flicker frequency, high frequency. So thepersistence of vision will make you still can not be resolved.
Different green laser have different divergence angle, the general research several mrad, laser pen is more divergent, not suitable. Can calculate the range of irradiation to the moon, the average end transparent rate multiplied by the atmosphere, the human eye can identify the minimum contrast can be back to the sun. The sun and are quite different, completely dark earth the surface of the moon and the food, the 100W red laser should be enough.
If in the near sea level, a green laser light can be hundreds of kilometers away to see, so the light can also be seen on the moon? After all, 1000 km thickness is far less than the surface of the atmosphere is the light shielding ability.
The principle of green laser measurement based on simple geometric relations. The laser beam emitted from the laser diode is irradiated to the measured object surface. The reflected light through a lens, onto a photosensitive element matrix, the photosensitive element can be CCD/CMOS or PSD components. Strength of reflected light on the surface characteristics of the measured object.
The green laser probe to the measured object distance can be accurately obtained by calculation. The triangle rule using this method can obtain micron resolution. According to the different models, the measured data from external or internal controller through a variety of interfaces for evaluation.
Green laser is projected to be measured to form a visible spot on the object, through the spot can probe installation debugging is very simple, so the laser sensor is applied to many fields, become a popular choice for precise distance measurement. According to the different design, the optical measurement principle of maximum allowable measurement distance to 1m. according to the need of measuring tasks you can choose the range, very small, but has high measurement accuracy.
In addition a highly reflective mirror, or analyte, may cause the vertical light return without the formation of diffuse reflection, will also cause the measurement ineffective. So the use of green laser, we must first fully communicate with the manufacturers, not human can be measured results most probably it did not actually happen, but not good. The current international mainstream laser displacement sensor the brand, such as Germany and Japan, Kean m Iridium, will require customers in the selection of laser displacement sensor, notice the measured surface structure and reflective properties.
Green laser and the capture of antimatter is extremely difficult, because they are in contact to ordinary matter will instantly annihilate. But with the special laser pensblue laser pointer, the scientists of the success of the antihydrogen atoms (i.e. hydrogen atoms of antimatter form) burning laser pointer launched a study.
Green laser describes the basic force between the basic components of the universe and for them. “Laser pens in the birth of the universe disappeared, it has always been a mystery, so we always pay special attention to the anti matter.” blue laser pointer.Burning laser pointer added in the experiment report introduces them to measure the after the antihydrogen laser irradiation under the precise adjustment of the response in frequency.
Green laser led to the abuse of drug resistance spread.Laser pens requires not only the development of new antibiotics, also need to develop drug resistance technology and monitoring system, transmission and delay and containment of resistance. To solve these problems, blue laser pointer is proposed based on the resistance of Raman group “technology.Burning laser pointer based on single cell imaging that does not depend on the breeding of bacteria.
Progress of green laserlaser pens application is also expanding, in many fields. It is reported that the future of life science, semiconductor, carbon materials and materials science is the main field of application of Raman technique. Among them, blue laser pointer is the largest application areas, burning laser pointer technology to further promote the updating of bear and upgrades.
What is the “green laser stainless steel locomotive body welding”? In fact, it is the stainless steel skin and internal skeleton of locomotive by inward external laser welding together. Unlike traditional welding, laser pens does not allow the skin outside welding deformation traces and hot surface to see, outside of the beautiful degree requirements are very high, like “blue laser pointer” this welding method is generally. In Europe and other developed countries in the locomotive manufacturing, has become one of the important technologies of burning laser pointer manufacturing.
With the rapid development of green laser, on Die Casting mechanical properties and service life of higher demands, at the same time because of the high cost of die casting mould, laser pens in the long-term use conditions due to high speed, high pressure, alternating or alternating load working conditions lead to the mold surface or blue laser pointer, or wear cracks the mould performance degradation, and even lead to burning laser pointer.
The circuit board in the green laser for frontback connection between the double plate line, or connection circuit for any layer between the conductive multilayer board. In order to laser pens, in the hole wall is plated with a metal layer. Now using the traditional blue laser pointer has been unable to meet the requirements of more and more small hole diameter: Despite the increased the spindle speed, radial velocity burning laser pointer can be reduced because the diameter is too small, even unable to complete the processing requirement.
Because the green laser provides a way of life of living cell biological processes in a highly scale case, the laser pens also can only be achieved in the electron microscope image. In order to obtain such blue laser pointer, the researchers hope to study fluorescence probe added to their cells, then these cells will be available in the burning laser pointer to.
Green laser is a nondestructive measurement of residual stress of a new method of.Laser pens theory and experimental results show that the existence of stress in the workpiece, laser beams in isotropic elastic body velocity and no stress when the transmission speed is different.Blue laser pointer related to the role of the stress the size of the force.
If you can get green laser stress, the change of elastic body wave and laser pens transmission speed, a scheme can get the stress the size of.Laser beams is dependent on the relationship between ultrasonic velocity on the stress state based on the measurement of the echo time is orthogonal polarization two wave, another scheme is referred to as sing around.Blue laser pointer by the Rayleigh wave and longitudinal wave in the surface of the component, evaluation caused by the strain displacement relationship of weakly nonlinear speed difference, thus determine the residual stress, namely using acoustoelastic effect method.
Green laser is the use of high energy laser pens excitation produces ultrasonic broadband surface is detected, and the use of optical methods for detection, high resolution, non-contact, long distance detection and many other advantages, especially suitable for harsh environment applications, such as in high temperature, corrosive, radioactive and was seized with fast laser beams moving speed under the environment of blue laser pointer.
Green laser ultrasound particularly easy to achieve rapid automated scanning. This technique has both quantitative and qualitative laser pens detection of accurately, and has the characteristics of non-contact, accurate and rapid nondestructive detection can achieve laser beams. Blue laser pointer has been applied to the field of attribute calibration, table surface and internal defect detection.
Green laser based on technology, such as the technology of laser pens alloy and laser cladding technology, using blue laser pointer melt and mixed metal powder, laser beams as the coating to cover the surface of materials. However, the process also have some shortcomings. The process temperature is high, the phenomenon of shrinkage during solidification, and paint dilution factors must be considered, in order to avoid the deformation of the material, the residual stress exist high strength and unnecessary metal.
The material in a small portion of the molecule is always better than other molecules of high temperature. When they absorb green laser when they are stimulated into a higher energy state. In some materials at green laser to bring the molecules to the original level lower than them, vibration is more “cold” away. The blue laser pointer and molecular ratio of the absorbed light contains more energy, which is called laser beams.
In the manufacture of metal furniture, butt joints of green laserlaser beams welding are generally used to assemble edge and sub assemblies profiles after laser pens cutting and bending joint. For this shape, to ensure the quality of blue laser pointer on the weld joint, positioning and adjustment is particularly critical. Therefore, between the plate edges the distance should be less than 0.15mm. blue fiber laser beams device is the use of rare earth ion upconversion luminescence mechanism.
But in most cases, in order to improve the absorption efficiency and conversion efficiency of green laser pumped, pens or Pr will often use laser ions and Yb ions Co doped, sensitized by Yb ion, using the principle of multi phonon absorption to obtain blue laser pointer effect on the most efficient conversion, Tm/Yb Co doped and Pr/Yb Co doped this two types of laser beams upconversion fiber has been reported.
Green laser is generated mainly from high energy photon stimulated by a frequency of excitation on the atom radiation, and then get two photon characteristics. Then recycling incentives as like as two peas high energy levels of atoms, photons get exponentially growing, so the beginning of photon difference weak was increasing concern a.Green laser is generated in the process of.Blue laser pointer with the ordinary light of light in frequency, phase (coherence), the direction is different from the.Blue laser pointer in all of the photons have the same frequency and phase (coherence), direction, in addition to the laser or coherent light.
Green laser; high brightness, good direction, good monochromaticity, good coherence four characteristics. The receiving system of direct detection laser radar receiver system to signal, according to this principle can be used by the blue laser pointer range, the travel time to calculate distance.
We choose the green laser device is mainly based on the principle of frequency, durability, reliability, many aspects of cost and applicability of the.Green laser asked to meet the above various aspects has the blue laser pointer characteristics of coherence is not high, for direct and indirect detection methods, blue laser pointer is to choose direct type.
For the direct detection method also has two kinds of detection methods. One is the pulse type, its principle is based on the narrow pulse to record green laser the time to reach the destination, by measuring the time, use the formula to calculate the starting point to the end of the distance. Where C is the speed of light, F for the round-trip time, distance R. two is a continuous, blue laser pointer is based on the principle of phase difference.
The green laser connection, there are many defects, for example, the curing depth is limited by the device geometry; limit; green laser less than the local irradiation. Both have not cured adhesive dispensing device, and set the blue laser pointer, which makes the whole system become more complex, most notably in the actual use of the heating device. Such factors will exist on the device at the combination position offset trace, with the reliability of green laser and improve the practicability, with the rapid development of computer technology and blue laser pointer in blue laser, promoted the development of pointer.
Green laser and blue laser pointer is the two most widely used laser, now two kinds of lasers to do a simple comparison of green laser (wavelength of 1.06 m is in the aspect of material processing with the most extensive laser source. However, a lot of plastic and used as some special polymer flexible circuit board base material (such as polyimide), not by green laser treatment or heat treatment of fine processing. Generally is through the blue laser pointer device on the junction surface is fixed, the first is the blue laser pointer to the device junction, then through ultraviolet light irradiation curing.
The traditional green laser, leading to device coupling power value of arrhythmia, decrease in accuracy, influence the quality of products and production cycle is long, efficiency is not high. While the use of green laser welding welding technology of this model, with its solid welding, little deformation and high precision, fast speed, easy to realize automatic control etc., so blue laser pointer has become one of the important means. Therefore, blue laser pointer precision welding department developed a high speed automatic coupling of laser welding system.
This is the set of green laser technology, automation control technology. Through the sensor control technology and electric arc pendulum mechanism, to achieve blue laser pointer adapter and the contact surface fitting, namely automatic leveling device. Usually two control surface gap between 0.01 ~ 0.03mm.
As we all know, green laser galvanized steel, galvanized by surface to protect the blue laser pointer inside the carbon steel, long-term use is not easy to rust. This kind of plate blue laser pointer plate although than ordinary carbon steel plate is slightly more expensive, but because of green laser without the need for anti rust coating after the procedure, so from the cost of the whole product, or cost-effective.
The green laser.Blue laser pointer has already It is quite common for cutting cutting processing is that it is not a means of contact materials, so it will not damage the surface of the plate, and the section without any burr, is a big cuts after the procedure of processing methods. However, green laser also will encounter a variety of actual cutting to overcome the problem. Here we will look at the daily processing generally difficult cutting galvanized steel used by and blue laser pointer solutions.
Green laser this is the most traditional cutting method has the advantages of blue laser pointer gas of low cost, but also in the sheet metal processing with carbon steel mainly, without switching auxiliary gas frequently, so.Green laser factory management but the drawback is that after oxygen cutting, the cut surface surface will have a layer of oxide skin if, then this will be directly welded with oxide skin products, for a long time, blue laser pointer will be the natural oxide skin peeling. This is one reason to weld welding of galvanized steel plates.
Using green laser nitrogen for high speed machining, due to the blue laser pointer function with nitrogen is different from combustion with oxygen, but play a protective role, so the cutting section does not produce oxide. Many companies also took a fancy to this advantage, so green laser of galvanized steel plate cutting is often processed by nitrogen. But the nitrogen gas cutting the disadvantage is here: because blue laser pointer cutting section completely without protection, so the product is easy to rust.