Laser pointers medical more and more widely, people for all kinds of laser medical look dazzling

The wavelength of 694.3nm laser pointers, the output pulse or continuous output, mainly used for the treatment of eye diseases. Application of pulse output of high powered laser pointer, the power in the 0.1 to 0.5 joules, closed retinal hole, for the treatment of macular hole closure and posterior pole effusion without retinal detachment, and effect of 90%, has the remarkable effect; application of 1 ~ 2 high powered laser dzhol iridectomy treatment, occlusion of pupil and laser show, the removal of the anterior lens capsule pigment tissue, congenital nuclear and perinuclear cataract, congenital pupillary remnant film.

laser-pointers1

Monochromatic long wavelength laser pointers, pulse output, can be used for the treatment of superficial localized suppurative inflammation, wound infection, tinea pedis, tinea capitis, hand eczema, neurodermatitis, high powered laser pointer, prurigo nodularis, vitiligo, ear furuncle, tonsillitis; acupoint irradiation can also be used to do, high powered laser bronchial asthma, neurasthenia, physical and neurological disorders; in addition, laser show also can be used as a fluorescence examination of light source, early diagnosis of cancer.

laser-pointers2

The emergence and development of myopia is a gradual process, environment and physical development and health, work habits, learning from.Laser pointers diopter, visual acuity has returned to normal, get rid of the inconvenience of.High powered laser pointer glasses, myopia mainly refers to the axial length is too long, the operation cannot make axial shortening, just changed the corneal refractive power, the gradual process of myopia is not terminated, so to remind the majority of patients with myopia, should be done high powered laser in myopia is relatively stable, and maintain good habits, so the effect will be laser show.laser-pointers3

Because the characteristics of laser pointers is highly concentrated, the brain hole wide open, the high powered laser pointer used in the medicine, forming a surgery with a scalpel — high powered laser. laser knife, focus is to use laser show together consisting of the blade, it is a “knife edge” 0.1 mm diameter small focus, however, this focus on the power density can reach 10 kW / cm2, the knife body is very large, can easily cut the skin, muscles and bones.laser-pointers4

 

The laser is the brightest light in contemporary, only moments of intense flash bomb explosion can be compared with it

As everyone knows, the motion state of any kind of luminescence of laser pointers all of its material inside the particles. When in a low level on the laser show (atoms, molecules or ions) high powered laser pointer outside the proper frequency excitation is corresponding to high powered laser level on the absorption (stimulated absorption), always trying to transition to go to the lower level, while the extra energy to the high powered laser show.

If it is in the foreign laser pointers directly under the action from high level to low level during the transition of the extra energy to high powered laser pointer released (radiation), high powered laser was released with the alien in the incident photon frequency, phase, and other aspects of communication to exactly the same, which means that laser show has been strengthened, we called the optical amplifier.

The output brightness of a high-power laser pointers by sun light up 7 to 14 orders of magnitude. So, although the total energy of high powered laser pointer is not necessarily great, but because the energy is highly concentrated, easily in a micro dots generated at high pressure and tens of thousands or even millions of degrees Celsius temperature of.High powered laser. Laser show, cutting, welding and surgery is the use of this feature.

In laser pointers, realize the level inversion is the premise to realize optical amplification, the prerequisite is to produce high powered laser pointer. To achieve population inversion by high powered laser, so that a large number of the original in particle transition low level to high level. This process is called “laser show“.

Laser pointers welding has a broad prospect in the welding of steel structures.

The technology can improve the weld ability of laser pointers arc welding, the welding of the large gap with the development and application of.High powered laser pointer of great significance and high powered laser technology has had a very long time, has been widely used in the industrial field and the laser show.laser-pointers3

Laser pointers through fiber energy from the laser transmission to the workpiece. The welding with high current, the welding heat affected zone of arc column.High powered laser pointer energy transmission is very narrow, the weld aspect ratio is very high. Because of its focus on small diameter, high powered laser weld bypass capability is very poor but on the other hand, laser show the welding speed is very high.laser-pointers4

Welding technology of combining laser pointers with another welding method called high powered laser pointer, high powered laser and at the same time in arc welding area, influence each other and support. The research direction is to explore the technological characteristics of wider and deeper application of welding field. A typical example is the laser show composite welding technology used in the shipbuilding industry. This possibility we will demonstrate and discuss the application in the application field.laser-pointers2

Laser pointers increased the weld penetration and welding speed, welding process of metal vapor volatilization, and reaction in high powered laser pointer, plasma on laser absorption slightly, but can ignore high powered laser. depends on the characteristics of the whole welding process to choose  and arc energy input ratio.laser-pointers1

Laser pointers technology will become the development direction of body welding technology

There is no doubt that the change of laser pointers mainstream development direction is extremely difficult, so we should be part of the diode laser into the existing mainstream direction, namely the CO2 laser generation should learn from the existing results of high powered laser solid, rather than relying on yet other development technology. The welding is a key link, the use of welding appropriate and can improve the body impact resistance ability, reducing body weight, laser show to simplify the final assembly process and other advantages.

laser-pointers2

Laser pointers is a kind of special light, monochromatic and coherent light, so it can be focused to do a small spot on the steel melt. To create a diode laser high powered laser radiation, you need the media. The energy from the outside will be transferred to this medium. At the same time, can produce molecules by stimulating. In the resonator the beam of monochromatic light between two mirrors, produced by reflection photon time and space agglomeration, one part of laser show transparent can be the ray reflected the resonator.

laser-pointers1

Laser pointers welding the most important advantage is the ability to very high energy focusing on one point, the high powered laser in the two beam welding part edge of the input energy of the metal is heated and melted. After diode laser beam melted material will be quickly cooled. In this process, there is a a small part of the laser show will enter the welded parts.

laser-pointers3

Another small spot size laser pointers beam is caused by the cutting quality, if there is to be welded seam in the middle of two parts, diode laser beam to ensure that through the material not in contact with the melt. To avoid high powered laser, the parts precision laser show is very high.

laser-pointers4

Because of its high efficiency and the ability to work continuously for long time, the fiber laser pointers has been widely concerned.

Now the laser pointers fiber by high power multimode single core diode junction diode laser module or  module high powered laser diode array pumped by a single strip cladding. The single-mode fiber core diameter of 5 to 12 microns. Double clad fiber laser show is a single-mode optical fiber doped with rare earth ions right amount.

laser-pointers1

The cladding is made of quartz glass by low reflectivity without any doping. The pump laser pointers injected into the cladding, and in which the conduction through the core. When will produce an inversion of diode laser to launch a necessary condition for the launch of high powered laser principle. Depending on the wavelength of laser in the ion doped core, and reflector type. The basic components of fiber laser show for a double clad doped fiber, two reflector and a pump source.laser-pointers2

The pump source is single core diode laser junction  array laser pointers module, laser module, can also use a small power high powered laser. pumped fiber type fiber laser, including single-mode CW laser, Raman laser, Q laser, two times and three times the frequency of frequency. The output of laser show the UV, visible and near infrared spectrum range is very wide.laser-pointers3

Emission principle of optical fiber laser pointers is fired by a low power nanosecond pulse laser generated seed, through a series of optical fiber amplifier and modulator. The structure of fiber amplifier and fiber diode laser, using the same technology, but high powered laser does not contain the continued production of laser reflector! Such a nanosecond pulse the laser has good homochromatism and can generate 20-200kHz. Raman fiber laser is composed of a single-mode fiber and a special laser show single-mode optical fiber grating is made with specific fusion.laser-pointers4

Laser pointers beam can be accurately performed surgery, like a small particle accelerator, like dry net net work.

When the molecular absorption of laser pointers, its electron stimulated. This new state is unstable, the molecules must lose their excess energy. To do this, by laser pointers of the molecular permanent chemical changes (such as open a key), or the molecular temperature rise, make it and the surrounding environment becomes hot. The excess energy in the form of  high powered laser from the molecule.

laser-pointers1

The use of laser pointers for cooling objects big idea is the German physicist Jinlin Seelem first proposed in 1929. His idea was to launch high powered laser when the material, it will become cold. In recent decades, called a Doppler cooling technology has been used in laser cooling material, using laser pointers to make atomic deceleration. The energy from atoms to photon conversion can make atomic cooling to the absolute temperature above zero ppm of powered laser but only weak.High in the minimum size to do this.laser-pointers2

There is something unexpected, laser pointers can put the material in the heat gradually discharged, until these materials as cold as frozen Pluto. American scientists have developed a prototype of high powered laser cooler, they hope to be able to use these cooler into satellite. Whether you go to what place, everywhere. There are traces of.Laser pointers can accurately surgery, small particle accelerators like a clear-cut.High powered laser can regenerate the surface of the sun hot state in the laboratory.laser-pointers3

The laser pointers left all the energy, more than the absorbed energy, cooling can be achieved.High powered laser method is on the photon laser beam energy selection, so that it only absorbed by those who already have some energy molecular materials, the first of these molecular “heating”.laser-pointers4

The laser pointers sensor is an optical instrument, its operation will be affected by the environmental conditions.

The laser pointers sensor is an optical instrument, affect its operation will be affected by environmental conditions. Therefore, the application high powered laser of measurable process to achieve different. The following conditions may affect the measurement process, due to technical difficulties and high cost of R & D laser pointers sensor, not only expensive, but also maintain and develop two times are relatively difficult. High powered laser radar technology has been applied to military production, all areas of life, truly benefit the people.

laser-pointers1

Laser pointers radar forms, technical indicators and technical methods are to be updated as the device level and the level of machining updates. The use is very extensive, it is a feasible way to detect, because the targets can be obtained relatively accurate distance information, no other way for the generation of.High powered laser could not have distance, microwave detection distance the accuracy is not high. The stimulated radiation is the frequency of the laser pointers to impact, can cause the particles in a certain probability from the low energy high level transition, and will release a polarization state, the process of phase, frequency and other external photons. Photons are as like as two peas interaction between material particles and high powered laser and the interaction between them in the micro particle material used to form the photon absorption and radiation, their motion and cause change.

laser-pointers2

This interaction refers to the mutual transition of laser pointers between two different levels, their frequency is v = Delta E/ Planck constant, and the energy difference was laser pointers, each state of the micro particles in a certain state, has itself a level, they are high powered laser must be a single state can also be understood as a state of being at any time they are unique. By definition the induced absorption is in the absorption of high powered laser, low level to high level transition.

laser-pointers3

What is the difference between ultraviolet laser and infrared laser pointers in material processing

Laser pointers in the form of damage in carbonization cutting or drilling on the edge, may lead to the weakening and parasitic conduction pathway structural, and have to increase the number of subsequent treatment process to improve the machining quality. Therefore, high powered laser is not suitable for some flexible circuit. In addition, even under high energy density, laser pointers the wavelength can not be more demanding to the absorption of copper, which limits the application range. While the output wavelength of high powered laser at 0.4 m, which is the main advantages of polymer materials. Different UV and infrared processing, micro processing essentially not heat treatment, and most of the absorption of UV materials pointers more easily than the absorption of laser. High energy high powered laser direct damage to the molecular bond many non metal material surface, with the “cold” light treatment work out The components have smooth edges and a minimum of carbonization.

One is the use of laser pointers: the surface of the material heated and vaporized (Zheng Fa), to remove the material, which is usually referred to as thermal processing. Using laser pointers (1.06 m wavelength). The two is to use the high powered laser: high energy direct damage to many non bond the surface of the metallic material, the molecules from high powered laser objects, this way does not produce high heat, it is called cold processing, mainly by UV laser (wavelength 355nm).

Moreover, laser pointers long the characteristics of metal and polymer micro mechanical processing has superiority. It can be focused to sub micron level points, high powered laser and processing it can be minor components, laser pointers even when the pulse energy level is not high, can obtain very high energy density, efficient material processing, using high powered laser micro hole in the industrial sector has been quite extensive, there are two main forms.

Laser pointerscutting processing technology is a kind of using laser beam on the surface of the accessories to achieve the continuous movement to achieve

Focused into a very small spot laser beam of the laser pointers equipment used in cutting time, can make high powered laser cutting machine to use high power, therefore, it is very fast cutting speed, high precision, can also ensure that the workpiece does not appear deformation.

laser-pointers1

Laser pointers cutting technology users know, high powered laser cutting technology is a use of laser pointers beam in parts of the surface is constantly movement to achieve, and the high powered laser beam in this work is a good guide, but also have a good correlation, its cutting ability the density is great. Well, the following Xiaobian specifically about laser pointers cutting technology which have characteristics.

laser-pointers2

This is a cutting technology as the cutting process using the laser pointers heat affected at the time of cutting area is very small, does not appear to affect a wide range. Another advantage is it can be of some non metal processing, of course, this is the other high powered laser cutting machine equipment can not do the place.laser-pointers3

The laser pointers beam has a good control performance and operation path we can control this free high powered laser cutting machine, for any kind of hard material can make the appropriate cutting. For those small parts, we can perfect the local cutting.laser-pointers4

Laser pointers has been gradually advancing the application field of high power CO2 laser.

People have been developed for high power laser source, laser pointers equipment, however, because of the electro-optical conversion efficiency is only 6%, and the huge, so whether it is simple or pump source, diode pumped laser source, still can not win over solid laser pointers source. With the further increase the output power of fiber laser, fiber laser is started to promote the application of the original can only use CO2 laser source. In the past three years, a variety of laser source used in the field of industry, the importance of laser pointers laser has been increasingly prominent.

laser-pointers1

A wavelength of 1070 nm ytterbium doped fiber laser pointers with its compact shape, the photoelectric conversion efficiency of more than 25%, and excellent beam quality has attracted attention. The main principle is in the laser cavity, through a variety of energy feedback, generation, operation guide and laser beam. The optical fiber laser by adding rare earth ions (such as specific ytterbium, erbium, neodymium, thulium etc.) high powered laser constitute a double clad coil formed by glass fiber. Double clad coil pump diode formed by multimode fiber, the energy into active fiber. Laser directly generate active optical fiber pointers cavity internal energy gain through a single-mode fiber passive multiple output. Single mode fiber synchronous output, we can get the kW laser pointers is a fiber power doubled. Due to the use of the fiber to the overall design of the fiber, so it doesn’t need to adjust or reverse alignment Mirrors and other optical components.

laser-pointers2

Compared with other similar output power of the laser system, optical fiber laser pointers device, coupled with the expected 100000 hours of uninterrupted operation of the service life of the diode is obviously lower maintenance costs. In addition, due to the design of fiber laser has the advantages of compact structure, simple operation, the optical fiber can access up to 200 m, it is especially suitable for those in need high power, flexible transmission and high mobility high powered laser source.laser-pointers3