The history of the red laser pointer
The classic red laser pointer is great. Not because red is particularly obvious as a signal color, nor because most users prefer red laser pointers. No, the classic laser pointer is red, because red light is the easiest to produce, so it is the most cost-effective to produce. Although the first laser pointers entered the market as gas lasers filled with helium and neon, today, almost only semiconductor lasers with red diodes are used in mass production.
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Application
A red laser pointer is a kind of laser pointer. Because it emits red light, it is called a red laser pointer. In terms of performance or use, it is not as good as a green laser pointer. The market retail price is much lower. It is suitable for middle and low-end consumers and can also achieve the functional effects of a laser pointer.
2021-10-13 11:47:01
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