With the improvement of economic level and living conditions, laser pointer are slowly entering our lives. How to buy laser pointers has become a problem we care about.
1. Introduction of Laser Pointer
The laser pointer refers to a transmitter designed to be a hand-held visible laser. According to the wavelength, laser pointers can be divided into red light (650-660nm), green light (532nm), blue light (445-450nm) and blue-violet light (405nm).
Second, the use of laser pointer
Laser pointers are widely used in daily life for scientific research, academic education and training.
1——Education and training
Used for daily teaching, instructs the blackboard electronic whiteboard, and guides students to learn.
2-speech
Used for product release and explanation, page turning and reminding at any time.
3——Explanation of tourism exhibitions
Used for the demonstration of the physical model, allowing you to quickly guide the crowd.
4-outdoor hiking
It is used for orientation and SOS help, making you safer on foot.
5-Astronomy
Used for astronomical observations, indicating stars.
6-Entertainment
Used for daily play, funny cats, games, etc.
Three, how to choose a green laser pointer
The choice of laser pointer mainly has the following characteristics.
1. Security
The laser pointer must have the relevant national certificate, and the level and power consumption must comply with the national standard.
2. Function
The function is mainly reflected in whether you need to connect to the USB interface, some do not need to be connected to the computer to emit laser, the function is relatively simple, some also have advanced control and interface functions, and some have other additional functions such as ultraviolet, lighting, and Control distance is also a major factor in purchasing.
3. Brand
Good brands have better after-sales and customer service in all aspects, spare parts are relatively sufficient, repairs and future maintenance are very convenient, and related activities and technical support are better.
Four, laser pointer matters needing attention
1. Do not aim the laser pointer directly at human eyes.
2. Because the laser pointer is kept well, keep it away from children.