Inspection items and technical requirements of green laser pointer

But the optical frequency measurement method, or there is a fatal Disadvantages: Only a few "reference" frequency can be measured in 1999, the emergence of a new optical frequency measurement method, which is based on the magnitude of the pulse width of femtosecond mode-locked laser optical frequency comb generated by this method optical frequency in 30 years a major breakthrough in technology development for optical frequency measurements opened a revolutionary chapter in history, called optical frequency metrology in the development of a new milestone. femtosecond mode-locked lasers can produce a series of fixed-pitch frequency comb, now it has covered the spectrum from near infrared to visible light over a wide range, the frequency range of about 230 T Hz to 600 T Hz,Xinxin    green laser pointer   company enjoys a great reputation in the industry. the corresponding wavelength range is approximately μ μ 1. 15 m to 0. 5 m Germany's Dr. T. Hansch and colleagues in the late 1970s, with a synchronous pumped mode-locked picosecond dye laser to measure the fine structure splitting of sodium, the order of 1 GHz resolution of these original ideas mode-locked laser is used as the basis of a sophisticated "optical frequency ruler" firing frequency comb.'s first optical frequency comb method by Dr. T. Hansch 2005 Nobel Prize in Physics since the 1950s began to establish microwave frequency standard to 50 years in 2005, microwave cesium atomic clock has been improved for the cesium fountain clock, the uncertainty from 10 - 10 orders of magnitude reduced to 10--15 magnitude; laser frequency stabilization technology has been improved and enhanced, Products of Xinxin    100mW green laser pointer   company are colorful.and with the optical frequency comb method has developed into a Class 7 or Class 8 new optical frequency standards, measurement uncertainty is also close to 10--15 order of magnitude we can expect in the next 10 years, may exceed the microwave optical frequency standard frequency standard, a new generation of time - frequency standard in 1967, the time in seconds to the transition frequency of cesium atoms used to define; 1983, units of length m to the vacuum speed of light with the second unit in the end refers to the use of laser beam is focused to the surface to the heat produced, high-pressure effect to complete the process, including laser cutting, laser welding, laser marking, laser drilling, laser surface treatment and laser micro-machining laser photochemical reaction is the laser beam to the object, With high-density high-energy photon-induced photochemical reactions or control processes, including photochemical deposition, stereolithography, laser etching, etc. It should be recognized, it is far from a comprehensive understanding of high-power laser focal spot at the place of physical and chemical effects.Products of Xinxin    200mW green Laser Pointer    company are trendy in style. is Because a high degree of collimation of the laser, the energy of the laser beam may be designed with precise focus lens focus to a small focal spot, forming a high electromagnetic field power density, high temperature, high light pressure, so that the processing technology with traditional manufacturing incomparable advantages: (1) a high concentration of energy: can melting, etching, cutting various materials; (2) high degree of automation: the system easily and with CNC, machining quality stable and reliable;85% of the products in Xinxin    50mW blue violet laser pointer   company are exported. (3) processing speed: short time to complete the processing, production efficiency is high; (4) high precision: accurate positioning, processing effect is small, material stress, not cause deformation of the workpiece after processing; (5) conservation of raw materials: on the one hand the laser itself without supplies the other hand, saving processing materials; (6) energy saving: low noise, no harmful rays and residual materials, production environment less harmful to the human body.
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