How many types of laser pointers have you seen so far
The light emitted by the high powered laser is not parallel light. In fact, it is difficult to make absolute parallel light, because no matter which method you use, the obtained light beam will still diverge at a certain distance.With the continuous development and advancement of computer technology, the mouse has developed as a public part of the computer from the traditional mechanical mouse to the optical mouse and from the cable-bound mouse to wireless mouse. As the wireless optical mouse has the advantages, that it does not have to connect to the computer via the signal line, simple operation and precise positioning, more and more users are starting to choose the wireless optical mouse.
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But at the moment all mice, including wireless optical mouse, are playing, Only the role of the mouse. The pencil head and the radio transmitter are installed together. It can be said to be within a certain limit.
The light beam is regarded as approximately parallel; the laser pointer sold on the street is not a laser but a strong light beam generated by a light-emitting diode. Through the internal prism combination of the shooting head, the light is concentrated to produce a relatively straight beam, not a parallel light. The range of the laser pointer is fixed. You can only say how far you can see with the naked eye in the daytime environment. A small green light spot of 10mw, if you ask about green light. Under the sun, you can see weak within 5 meters during the day.
2021-11-08 01:22:42
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