The difference between green laser pointer and blue
The wavelength of blue is also shorter than that of yellow and red pointers; it emits a more powerful laser than red. The use of this type of laser in classrooms and meetings is discouraged because the blue laser can damage the retina. In many cases, people who have been exposed to blue laser pointers are said to have poor eyesight. Therefore, the thinnest laser in the world was born, with a line width of only 10 MHz. The researchers explained in their paper that the light waves of the laser oscillate about 200 trillion times per second, which can remain stable for about 11 seconds, which is enough for it to make at least five earth-moon round trips, giving you an idea. Red: a very cheap laser, there are also ordinary lasers. The shorter red wavelengths are obvious, but the longer wavelengths are not too bright. Green: Very close to optimal visibility. Cats seem to prefer red.
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The green high powered laser pointer emits light in a cross beam pattern, projecting visible light and a circular blue spot onto the target object. Compared with the green laser with the same output power, the green laser pointer is less visible and is considered the brightest laser in all the invisible spectrum laser series. But at the same time, with the increase in application advantages, the price of blue lasers has become higher than other lasers. In fact, it is difficult for ordinary people to pay for them. Compared with the measured price of red lasers ranging from 60 to 100 US dollars, the basic price range of these lasers is 700 US dollars. So as you can see, it is not easy to own it. You need to have a budget and clear goals to purchase these lasers. The reason why their price difference is so huge is the technology behind them. The processes used to generate laser beams are different in green and blue lasers, so there are huge differences.
2021-11-22 06:20:53
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