provide all the world the brightest laser pen

Posted by laseradmin333 on August 11th, 2017

The green laser is a typical astronomer using the weapon, as shown by the analog beam. Because it's the brightest laser pointer . The 5 mW laser is a strong narrow beam that is powered by two AAA batteries and emits light at a wavelength of 532 nanometers. In the evening, the beam is meters hundreds or thousands, depending on the weather conditions visible. This device can buy less than $ 20 from many places.

Maybe you've seen newspapers, televisions, maybe you may have heard that hand-held laser indicators - usually priced at less than $ 100 retailers and online retailers - are either completely harmless or capable of knocking down a large jetliner The Of course, the truth lies between the two. If used properly, the laser pointer is quite safe. But the use of improper or malicious, they really exist the possibility of danger.

Pointer astronomers favor the use of green laser diodes and emit green beams at 532 nanometers wavelengths. At a given power setting, these lasers appear to be much brighter than the most common laser diodes of the red light beam that produces a wavelength of 630 nm. The reason is simple: the human eye is more sensitive to the green relative to the red light.

The laser pointer is visceral
The laser pointer is a very simple device. In addition to the battery (usually two AAA batteries) not shown here, the electronic components include only a tiny circuit board with only a few components. The core is a laser diode that is terminated by a lens (right); the white point at the center is an on-off switch.

In addition to the high clarity and near zero water night, if you shine in the sky green laser pointer, you can follow the hundred meters up. For you and everyone standing there, it seems that the end of your goal in the beam of stars or planets. This makes it easy to show someone specific to a celestial body. Just 100mw green laser, said: "Look over there!"

As long as you hold down the button Most laser indicators will glow, but some models have a setting. "Bright" these are all. Increasing popularity of AIDS pointing telescope. Once the laser is installed and used in a range of collimation, just move the frame left and right until it points to the target star when you look at the eyes that it exists.

By the astronomers and the public commonly used green laser pointer has a slightly less than 5 milliwatts, the power of the United States, they are known as 3A-class lasers. Low-power lasers, such as those in CD players and laser printers, are class 1 or 2, and higher power units, such as those in medical and industrial equipment are Figure 3b class 4 or 4. The higher the class, the more severe the adhesion of American food And the Drug Administration (FDA) require É to warn.

Warning label
Sparkling labels are required when selling laser pens in the United States. Laser class 1 or 2 has a label "warning" with a power less than 1 milliwatt (MW) bed. More powerful laser 3A-level engine labels, such as the pointer 5 m · Green (532 nanometers) that here, read out "dangerous".

Compared to incandescent bulbs, attracting tens to hundreds of watts (non-milliwatts), 5 milliwatts seemingly few. But the laser is highly concentrated in a very narrow beam. In addition, the beam is collimated, which means that it diverges (poor) very slowly. The laser pointer typically emits a light beam of about one millimeter diameter. Even to one kilometer, the beam is not greater than one meter in diameter.If you look directly at the laser for a 5mW short distance beam - you absolutely do! - where you will look better than the sun (we all know that you should not watch the sun). A strength of 3W laser pointer at any distance ratio of high energy like the source of ordinary light, which extends at a much higher angle to its much higher emissions.

Safety first
Directly observing the beam of laser gloves, but at a brief considerable distance, may cause temporary glare - you get the same effect as the flash takes the picture immediately after - or the residual image. These effects can last from a few seconds to a few minutes. Reduce glare or central vision loss, only as long as the exposure to the laser beam.

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