Three guides for buying high-quality laser pointers

First, the color of light
There are many colors of laser pointers, each of which has a different purpose. The color of the spot or beam of the laser pointer directly corresponds to the wavelength it emits. Although red lasers are most commonly used in homes, blue and green laser pointers are becoming more and more popular. You can choose a variety of colors, from 532nm green to 450nm blue, 405nm purple and 650nm red.
Second, choose high visibility
Compared with red and blue lasers, the human eye is more sensitive to green. In fact, at the same output power, the 532nm green laser is 7-10 times brighter than any other beam. The green pointer is great for signaling to very far objects because it can easily follow the laser beam completely. We provide green laser pointers for countless applications, including star pointing, presentations, presentations, photography, etc.
Third, security
For example, a laser pointer is a technical device that can be used as an optical pointer in a demonstration. The range of available Laser pointer continues to expand, with new shapes and wavelengths. In principle, if it is recommended to use laser radiation, the damage to the eyes will exceed the limit. Measurements of available laser pointers from different retail establishments have shown that these limits are sometimes dangerous (about more than an order of magnitude) have been exceeded, and laser pointers are usually wrong or wrong. There is no classification at all. It must be pointed out that the market trend continues, and the laser beam power reaches a dangerous value of 5 mW, which is equivalent to the value of the newly introduced 3R laser since 2001.

2021-09-27 12:18:51