The heat input burning laser pointer welding is higher than the pulse laser spot welding, so the deformation will be large than the pulse laser spot welding

By Aluminum Alloy welding strength is far below the strength of the material itself, and the strength difference between the various welding products are also great, poor stability. And the burning laser pointer Aluminum Alloy continuous welding welding can avoid welding cracks, improve the weld strength and stability.burning laser pointer2

Burning laser pointer pulse laser welding and welding with a tensile Aluminum Alloy products were compared. By calculation, the average tension of fiber laser is 3.9 times the pulse laser, and the standard deviation of the data only pull pulse laser 1/3.burning laser pointer3

The burning laser pointer seam tension is much higher than that of pulse laser spot welding, this space is provided to improve welding efficiency, by reducing the number and length of the weld seam, in welding under the condition of higher efficiency, and achieve the same pulse laser spot welding even higher welding tension.burning laser pointer1

In the actual operation process, by optimizing welding parameters, weld number, length and position of welding, burning laser pointer piecewise continuous seam welding process can completely replace the original pulse laser spot welding process.

The focus of information a few kilowatts of continuous blue laser pointer

The focus of information a few kilowatts of continuous blue laser pointer, you can see the distribution of light beam in the focal region and intensity corresponding to a beam cross section distribution is very intuitive, can be seen in the center of the beam intensity is low, the intensity distribution of the ring, is probably the TEM01 mode, the light beam M2 is about 2.24. General quality, but high energy CO2 laser basically is just like this.blue laser pointer1

Blue laser pointer for relatively thin materials, the impact is not big, but for thick material, determine the effect of material relative to the focus position of processing is very important, the focus position is different, and the effect of energy materials received when processing is completely different.

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Red is blue laser pointer, sampling a plane high speed rotating probe, and the sampling light to the detector through the internal optical path, to determine the sampling energy, and record the probe position and angle when Saowan the corresponding area, through the computer will correspond to the data synthesis and the light intensity distribution information corresponding to the cross section of the completion of a set of measurements.blue laser pointer3

Simultaneous measurement of mobile control and blue laser pointer. High precision positioning and fixing device is relatively easy, has reached nm or even nm level positioning, but repeated positioning device of high speed will be affected by various factors, the completion of a complete test requires thousands of synchronization of motor stability demand is very high, if stuck, the equipment basically scrapped.

 

The ideal color of the powerful laser pens gun should be “no color” infrared

The ideal color strength laser pens gun should be “no color” in the infrared, and you see the blue laser may not necessarily be the color itself, it is very likely that the luminous light hit the target in the high temperature region produced by laser emitting laser itself will be hot, if large power or it will burst a cooling device.laser pens2

If you do not want every shot to CD, then give it an evaporative cooling device, like the laser pens gun, the cooling liquid natural water can not be so low things, then use liquid nitrogen, affordable, safe and clean, high concealment, just need your gun. A coolant and exhaust port.

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When it comes to the powerful laser pens device, it must mention the laser cutting machine, which is now more conventional can rival the laser gun thing, it is indeed very small, just to support it to work there is a lot of things.

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Laser pens gun just need that little things below the white black sub center of the beam on the above, it can be like a tofu cut anything you want to cut any metal you want to cut it, just for killing the target is too small, you need a little rough. Plus a handheld device for cooling equipment and inexhaustible power, finally add a cool shell, is a laser gun.

Laser module from the face of the pox and India pock is feasible? Laser removal treatment means more effective at present.

But the high speed laser module after irradiation, can make the most of the energy and electron lost back to launch a large energy photon and photon Compton scattering, look in the energy transfer to the electronic just in turn, so called inverse Compton scattering. Thus the distribution function of hard photon has increased greatly, can realize the photon scattering process high energy.laser module1

Treatment of active acne preferred laser module, it is the use of strict control of the strong pulsed high energy scavenging Propionibacterium acne skin, eliminate the red dilation of blood vessels, control of skin inflammation, inhibit the secretion of inflammatory factors; at the same time, directly kill some sebaceous cells, inhibit sebum secretion.laser module2

Laser module in the treatment of proliferative phase effect is significant, lasting, and will not cause any complications. Some cases may choose to get rid of red effect better vascular treatment laser.laser module3

Laser module has always been grinding is an effective therapy for acne scar, but because of its side effects, especially the high pigment in darker skin pigmentation in rate, its application is very limited. The new technology of laser treatment of skin scar, can effectively avoid the traditional laser postoperative erythema, pigmentation and other side effects.

Green laser would allow the energy to focus as much as possible in time and space, so it will not “slowly”, nor “thick”.

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”.

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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.green laser2

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.green laser3

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.

 

Why is green laser light (or its reflection) will look grainy?

When the teacher asked the question of laser principle, the teacher praised me to observe carefully, then tell me this is the green laser light speckle interference phenomenon, because of the special high coherence laser. Gauss beam just shows a cross-section of the laser light intensity on the part of Gauss branch, and the scattered Never mind spot.

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The particle state was named “green laser light“. The intensity of speckle pattern is random, can be generated by laser in rough surface reflection or laser through inhomogeneous media. Because most of the surface is rough on the wavelength of light, due to the high coherence laser, when light reflected from the surface of the object. Each point on the object to the appropriate distance of observation point vibration is coherent.

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Green laser light is due to photons of frequency, phase and amplitude are the same, each encounter can interfere. Due to surface roughness, a beam of photons in the laser will be rough surface reflection to run around, so it encounters the same phase of the photon, the meeting place will brighten, meet the photon anti phase the place is dark.

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The “green laser light” I was not very strict, but the expression of “a small light” laser beam inside the light. In the process of communication, the initial phase (shaking position start) is the same, but the instantaneous phase (the current position of the vibration transmission (with) go forward the process of continuous) to 2 pi (a circle) and the cycle of change.

The mirror is visible light, high power laser is not visible outside the range of spectral reflectance of the mirror

The default is the common behind a thin layer of silver, in front of a glass mirror. The mirror should be said first light.High power  laser penetrate the glass, metal metal absorption energy first arrived, and then quickly release energy, also is the reflection of light. If the metal surface is smooth, then the reflected light is special order, form specular reflection.

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In the face of high power laser, even if the metal surface to smooth, instantly absorbed energy is too large, more than the metal can be reflected energy range, electronic metal atoms in the atomic structure completely out, between the metal atoms is destroyed, the metal is “broken”. (well, this beyond the scope of knowledge, but my truth should be about nothing wrong)

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In other words, if high power laser casually to be reflected, so the metal surface mirror level how to use laser carving ah what? So, this face similar MW energy concentrated in less than one square centimeter level laser weapons, what the mirror was not so.high power laser3

Vaguely remember silvered mirror in 450nm to 2 micron reflectivity can be greater than 97.5%, 250nm to 450nm in the aluminum mirror reflectivity of 90% dielectric mirrors 800nm can be greater than 99%, but they all have a certain damage threshold, high power  laser to a certain extent is bad, if the dust on the mirror what is more likely to be broken.

In a 200 km radius of the burning laser pointer Ferris wheel, electric vehicle transportation cycle down out of the battery

Need back to the ground. On the burning laser pointer, I know, there are two forms of vision, is a minor, not easy to solve power transmission area, such as unmanned area (desert, Gobi), so there a microwave receiving station is relatively safe, harmless to humans and animals. This energy is not too large; another version is a path to Communism: completely solve the energy problems of mankind.burning laser pointer1

Burning laser pointer to solve large bodies of launch, on orbit assembly attitude control problem, but also solve the problem of large current transmission (HTS), so I suppose to this step, we have made remarkable progress in materials, today that idea is not realistic, that time has been achieved.

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For example, light, rigidity and good material, can control the shape and attitude on a large scale, after all, this is the “burning laser pointer” must. For example, large buildings on the ground to consider air disturbance, resulting in angular momentum to control, also led to the need to maintain the shape of space solar panel array; as to consider the radiation and cosmic rays, because light sail huge solar panels equivalent to the efficiency is not too high…

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In a 200 km radius of the burning laser pointer Ferris wheel, electric vehicle transportation cycle down out of the battery, charging in low earth orbit. If full Ferris wheel diameter, with a single row of 1865 lithium battery 3.2V, 1000mAh full capacity (new battery 3000mAh, scrap, even with 1/3 capacity), then a turn can transfer 200 thousand kwh!

 

Therefore, the main direction of the blue laser pointer has high average power, high peak power two routes

Blue laser pointer chemical energy, mature technology, the United States will be equipped with oxygen iodine laser target played on Boeing airplane, maintenance disadvantage is expensive, usually toxic chemical dyes, so the most fire is mainly solid laser weapons, such as slab type, disc type solid laser is to support structure of large power stability output.

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Comprehensive high average power, high peak power, high beam quality blue laser pointer is promising, the most worth doing is disc end pumped solid-state laser. The disc, fiber, lath structure is to heat, heat production is always the biggest problem of high power laser.blue laser pointer2

A parameter blue laser pointer must be considered is the photoelectric conversion efficiency. If the conversion efficiency is too low, the power consumption is too large, vehicle, airborne is not good, this is why the current to achieve the laser weapons targeting most land-based, shipboard, large aircraft equipped with energy, otherwise is a problem.

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In addition, in order to output high beam quality, directly using the blue laser pointer output seems not much, but with the laser power, light – light – > > series, more conversion efficiency is lower, and in order to pumped, Ura Hikaruhikaruko energy is greater than the laser output of the photon energy, therefore may be used in nonlinear crystal the wavelength of the frequency doubling efficiency, as can be imagined.

Don’t say bad high power UV laser pens is done, playing in the metal, the metal must be broken.

Like laser pens have high requirements of the device is generally not used. But! Everything has an exception. This is Spring8 FEL, niubable Japanese with high frequency electronic deflection part need not fall, the rest of the nanosecond level length of beam, and then down to the hard compression, also they could have femtosecond level. In light of the cathode, but as a user device, stable and long time to provide high current beam is the most important, so they give up the photocathode.

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Because of the hot cathode bunch length is difficult, so after the laser pens invention, soon in electron. Because the length of the laser is easier to achieve fast, so produced by laser beam is short beam, good control.

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A metal cathode, in response to UV laser pens, is the goddess of love Nanuo award reference experiment. Long life of metal cathode, emission of live together. Of course is worse. The specific heat cathode 266nm laser. After all, remove the transition energy of the electron temperature did more than 0.4eV.

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And the metal cathode efficiency is very low, generally 10000 photons will hit 1 electrons, do well, barely able to 1000 photon is an electron. So when the high current to play silly, don’t say bad high power UV laser pens is done, playing in the metal, the metal must be broken.