Laser is a kind of light that has no directionality, high brightness, good monochromaticity and good coherence due to excitation. Physicists trace the mechanism of laser generation to the hypothesis that Einstein explained the law of blackbody radiation in 1917, that is, the absorption and emission of light can be through three basic processes: stimulated absorption, stimulated radiation and spontaneous emission.
Laser technology is an academic publication approved by the Ministry of Science and Technology (formerly the State Science and Technology Commission) for public release at home and abroad. It is a core Chinese journal of radio electronics, telecommunications technology and physics, and is a national-level scientific and technical journal. This journal closely tracks the progress of high-tech at home and abroad and the development of new pioneering fields. It mainly reports new materials, new processes, new technologies, new components and new technologies in different development stages in the fields of optics and electronics at home and abroad. There are innovative academic papers and innovative review articles in engineering applications.
1) Strong beam with excellent directionality -------- collimation, ranging, cutting, medicine, weapons, nuclear fusion research, etc.
2) Excellent coherence beam - precision thickness measurement, angle measurement, holography, etc.
3) High-intensity and frequency-adjustable beam----high-resolution laser spectroscopy to study atomic and molecular structures.
4, super strong, ultra-fast laser pulse ------ time-resolved, ultra-fast process laser spectroscopy.
Third, the working principle of laser technologyScientists in the electric tube use light or current energy to strike certain crystals or atoms that are susceptible to excitation, causing their atoms to reach the excited high-energy state. When these electrons return to a calm low-energy state, The atom emits photons to release excess energy; then, the emitted photons hit other atoms, inspiring more atoms to produce photons, triggering a series of "chain reactions" and moving toward the same side. Forms intense and concentrated light in a certain direction; therefore a strong laser can even be used as a cutting steel plate!
In terms of technology, the most advanced is the United States, and its application to laser technology is also the most extensive. Laser technology, including aviation, military, and medical, is heavily invested and widely used.
Product advantages:
1. Stylish, portable, practical and convenient home charger
2. 6-port USB emergency charger, which can be used safely for tablet computers and can charge 6 devices at the same time
3. Built-in IC chip and fuse, protection: over current, over voltage, short circuit protection
4. The latest release, new design, beautiful appearance, high efficiency and energy saving, the best alternative to the original charger
5. Chargers for MP3, MP4, GPS, PDA, e-books, mobile phones, digital cameras, tablets, etc.
Features
(1) Overcharge protection
(2) Over discharge protection
(3) Short circuit protection
(4) Voltage stabilization protection.
(5) Automatic identification of mobile phone current protection.
1. Connect up to 6 USB devices at a time, and each device will receive a unique and tailor-made charge. The maximum output power of QC3.0 is 18W, which can optimize the charging of all devices.
2.2QC3.0+4 ports total 6 charging ports, which can charge 6 devices with a total power of 84W at the same time
3. With multiple protection safety systems, the product will automatically adjust the charging current according to the needs of the device being charged. Automatically detect and adjust the charging current to charge your device at the fastest speed.
One machine for multiple uses
The USB charger can charge 6 devices at the same time, and the smart recognition technology will detect and provide the best charging level for each of your devices.
The maximum output current of a single USB port is 2.4A. 2QC3.0 has 6 charging ports, which can charge 6 devices at the same time without causing shunting or reducing power. The USB charger can quickly charge your devices. Smartphones and tablets can receive up to 2.4 amps of current, so you can use the device as you like while charging.
Over-current, over-charge, and short-circuit protection will make charging safe, without any risk of overheating or damaging the device. Passed CE/FCC/ROSH/PSE/CCC certification. Through safety certification to ensure safe use.
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