The Future Development of CO2 Laser
Power continuous CO2 laser marking machine laser: for the helicopter engine turbine blade with continuous laser cladding cracks and blade deformation problems in the 5kW continuous cross-flow CO2 laser, the use of new power control program, through software and related control, To achieve the pulse blue laser pointer power output to overcome the use of high-power switching power supply costs and stability problems and pulse modulation frequency up to 5Hz, modulation duty cycle can reach 5% to 100% when using 4kW peak power, 4Hz The results show that the heat affected zone is 50% lower than that of the continuous laser, and the hardness is increased by 5% after the cladding. The results show that the heat recovery zone is 50% , The interface with the performance of the base material is equivalent, no melting cracks and leaf deformation.
Compact long-life RF excitation waveguide CO2 laser: In order to make CO2 lasers in industrial processing and military have a wider range of applications, the use of aluminum alloy drawing profiles as a laser shell, plate mounted inductors instead of the traditional wirewound inductance structure and all-metal Sealing technology, etc., developed a compact long-life RF excitation waveguide CO2 laser. Can be continuously output or no higher than 20kHz modulation frequency pulse output, the maximum output power of 30W, the measured working life of more than 1500h, storage life of more than 1.5a The results show that the laser pointer has the characteristics of compact structure, stable output power, long working life, continuous and pulse modulation, and can be applied in military applications in addition to the processing of various materials.
Acousto-Optic Q2 Laser: In order to meet the requirements of laser ranging, environmental detection, space communication and laser-material interaction mechanism research, developed sound and light modulation QC02 laser. The main technical parameters of the output of the laser are analyzed and calculated by using the Q - ray pulse rate equation of the Q - switched pulsed laser. The method of acoustic and QCO2: laser optimization design is proposed. Conducted a validation experiment.
In addition to the original DC discharge (DC discharge) excitation technology, there are AC discharge (AC discharge), radio frequency discharge (RF discharge), microwave discharge, which are developed this year, a variety of new incentive technology, DC discharge and RF discharge. Different materials, different paths of laser cutting machine, welding, surface treatment, often require the green laser pointer beam to change the way of work at any time, sometimes requiring continuous output, and sometimes require pulse output waveform. In recent years there has been enhanced pulse output, so that processing performance improved significantly.
High current gas discharge in the current, voltage, gas temperature are high, glow discharge positive column area of the thermal instability and arc contraction and so on more serious. How to ensure the uniformity and stability of large volume glow discharge is one of the key technologies of high power carbon dioxide lasers. Our commonly used techniques include: the large volume of discharge divided into many small discharge areas were controlled; gas rapid flow instability of the disturbing factors in time to bring out the discharge area; increase the turbulence to increase the uniformity of discharge; increase pre-ionization or external Ionization source to increase the uniformity of discharge.
The pulse repetition frequency of the laser is lHz ~ 50kHz, the output laser pulse width is 180ns and the peak power is 4062W, which is basically the same as the theoretical calculation. The results show that: through the acousto-optic crystal (AO) optimization and reasonable design of the resonator. Can achieve a small CO2 laser marking machine laser high frequency, narrow pulse width, high peak power output, and through the raster selection line design and TTL signal control to achieve such a red laser pointer wavelength tuning and coding output.
Laser cutting, welding and other applications require excellent beam quality, especially after the focus of the beam as thin as possible. In high power lasers, carbon dioxide lasers are the best of the beam. In the high power state, the thermal distortion and thermal damage of the laser crystal output window and the total reflection mirror are often the key technical problems that limit the improvement of the laser power and the improvement of the beam quality. Substrate selection and cooling, polishing, ultra-fine car and other process problems is also very important.
Carbon dioxide laser electro-optical conversion rate is generally in the range of 10% -20%, which can be considered a high conversion rate. Most of the rest of the discharge power through the electronic and gas particles of the elastic collision of gas heating, temperature rise; for high power lasers, the gas temperature rise faster. When the working pressure temperature reaches 300 ℃, the laser pen light and the lower energy level of the carbon dioxide laser have no laser output because there is no particle inversion. The actual situation is the gas temperature is greater than 150 ℃, the electro-optical conversion efficiency has decreased significantly. For this reason, the device is required to be able to quickly and efficiently take away the heat of the discharge zone gas. There are two commonly used methods: gas convection cooling and diffusion conduction cooling.
08:58:41 29 Juli 2017 Permanente link Reacties (0)
The new burning laser pointer system
You will be in a position to work out the minimum plasma based field strength that would prove effective against the incoming burning laser pointer beam.It surrounded by helmeted soldiers defending against an unseen threat with their poorly aimed laser blasts.Its shooting ranges across the world could become bullet-free, with shooters firing laser beams at targets. http://www.htpow.com/ultra-powerful-laser-pointer-blue-10000mw-class-iv-445nm-p-1028.html The new burning laser pointer system, however, is more accurate, efficient, and silent. It will be delivered and further tested.By 2020, it plans to equip all of its fighter planes with laser.Shooting lasers, flashy red beams and all, will make the sport attractive and fashionable.It will be directly impacted if the sport moves from bullets to lasers. http://www.htpow.com/200mw-green-laser-pointer-pen-532nm-belong-to-cass-llla-p-1003.html Jackson was working at NASA when 200mw Laser Pointer became available to use in research.They are the key element in lightsabers and the Imperial battle station's planet-killing laser.They are three-dimensionally generated in a liquid using focused femtosecond laser pulses.Changing the number of laser pulses used to irradiate the liquid.
10:23:24 24 Maart 2017 Permanente link Reacties (0)
Very good high powered laser pointer
Very good high powered laser pointer I love collecting different type of lasers and this is my favorite it's strong right out of the box if you want a good laser get this one.This is a great laser I love playing with it. The beam is amazing. It's great for playing with animals and everything.I needed some cheap lasers for a project I'm working on, and these fit the bill. I originally assumed they were shipped from China since the delivery estimate was over a month, but I was then surprised to find that they were delivered within a week!
These Laser Tag guns are awesome!! So cool. I have had different types/sets of laser tag guns throughout my life and these are by far the best. They feel very solid and fit in your hand nicely. They feel much more advanced than your average laser tag set. Definitely the best technology in a personal laser tag set that I have seen. These are not toy laser tag guns they are the real deal. Watch my video below for how simple this is to use and set up quickly.
They are the dimmest 1000mw Laser pointers I've ever seen. I didn't try all of them but the ones I tried did work, but they were all similarly dim. For point of reference, each laser is about 5-10 times dimmer than a cheap laser pointer I bought for my cat. They also seem a bit delicate--as the picture shows, its literally just the diode module with two leads soldered right now. I'm not sure what I was expecting when I bought 10 lasers for $2.30, but I was hoping that they would actually be the power that they claimed to be.
Very good product, very, very bright laser. I have bought a Chamberlin "Laser" garage assist. Chamberlin has a small pulsing almost invisible laser dot and if your windshield is tinted then is completely invisible. Replaced with this cheap WYHP laser dot…added a cell phone wall charger 5V and used USB cable from the same charger. Red goes to red and black to black from the laser. WOW!!! The results!!!The laser spot is about size of the penny and 50 times brighter. I did powered permanently from the wall plug of the garage opener, but you can use the same power as the opener bulb, so it will light up only when you open your garage door. Picture compare both dots on the garage floor.
They are also brighter than your typical laser pointer. I was easily able to see the laser point outside at night at distances of a couple of hundred feet. I suspect they could do damage if you are foolish enough to point this at someone's eyes.
13:13:37 19 September 2016 Permanente link Reacties (0)
Whether We Will See the Death of Laser
Whether We Will See the Death of Laser
Boeing company's airborne burning laser program is a project of missile defensein in West naiad graphs , belongs to the U. S. Department of defense support of dozens of directed energy plan, these plans by Boeing, Raytheon and Northrop Grumman and contractors responsible for implementation. Boeing's Michael Lynn said: we just can not see death ray between 2500 to 5000 watts of laser, per minute can be hundreds of inch steel plate cutting. Laser power is 10 to 20 times higher than the current power of the military research, so its potential has been greatly improved, in a few seconds to cut metal. Mr Weinberg believes, lasers are increasingly military use. The sights of a gun with the laser device, laser device; targeted to help guide aircraft from aerial bombing, the safety of the communication line is also dependent on the device.
Research on Laser weapons in the USA