How is the blue laser pointer formed?
A blue laser is a laser (pronounced LAY-zer) that has a shorter wavelength than the red lasers used in today's optical disc and laser printer technology, and is capable of storing and reading two to four times the amount of data. When commercially available, PC users may be able to afford laser printers with resolutions up to 2400 pixels or dots per inch. Applied in buildings, parks, plazas, theaters, etc., the high power laser pointer beam used is not divergent, attracting people's eyes from a long distance, and becoming the focus of attention a few miles away from the laser spot. Beam laser application: ornamental: install laser in high-rise buildings or mountain top scenic spots, if the beam is injected into the distance, there is a bright green light in the sky, very bright, the beam can swing up and down, left and right, and you can appreciate its magic from a few miles away Magnificent look.
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When the laser light intensity is strong enough, it will burn the skin or clothing, and even ignite volatile chemicals such as alcohol, gasoline, ether and other organic solvents, which will damage the light sensor camera, photodiode, etc. The path the laser beam travels, even over a certain distance, can still ignite the material; even this indirect laser contact, reflected off surfaces, can be dangerous. Photons are created by chemical reactions between special materials and then focused into a concentrated beam in a tube containing mirrors. In blue laser technology, the special material is gallium nitride. Even a small reduction in the wavelength of light can have a huge impact on the ability to store and access data.
How to choose a real green laser pointer?
1. Carefully observe the green laser spot in the dark. If there is clear floodlight, the laser lens fails.
2. Check whether the green laser point is a full circle point, generally within 2mm in diameter.
3. Check whether the laser beam brightness of the green laser pointer changes from bright to dim. If so, there may be a problem with the green laser pointer circuit board and laser diode.
2022-01-25 12:33:48
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