|HTPOWショップグリーンレーザーポインター 投稿者：jackery 投稿日：2021/09/04(Sat) 16:31 No.183|| ||
The blue laser pointer irradiates the cigarette for about 10 seconds, and the cigarette emits smoke. These high-power blue laser pointers can really ignite cigarettes? If they are used as toys, how much potential danger will there be? The reporter bought a high-power blue laser pointer set with a price of more than 200 yuan, and found cigarettes, Candles, newspapers, balloons, etc. are used as experimental materials to verify the power of this high-power blue laser pointer. With the advancement of science and technology, anti-blue eye protection products are already common on the market, such as anti-blue glasses and anti-blue intraocular lenses. But even with these products, the damage to the eyes caused by improper use of lasers should not be ignored, because this damage is irreversible. Because gallium-nitrogen chips are monopolized by Japan and the United States, and the cost of blue-light resonators is relatively high, it should be the most expensive. The color solid-state laser technology is very mature, but because it has more processes and materials than red light, the price is between red light and blue light. Originally, only the 473nm blue laser produced by DPSS, the power is low and unstable. Recently, as CASIO has developed a hybrid light source high-brightness projector containing a blue laser diode (445nm), blue semiconductor diodes with a power exceeding 1000mW (the fourth category) have been mass-produced and popularized.
Gallium nitride LED chips can emit blue light, and after adding a resonant cavity, blue laser light can be generated. The reason why blue lasers are expensive is that, on the one hand, the manufacturing process of gallium nitride chips is complicated, which is much more expensive than gallium arsenide (red light) chips. On the other hand, the cost of blue resonators is also high. And because the lumen efficiency of blue light is relatively low, that is, the human eye is not sensitive to blue light, the blue light of the laser with the same power is much dim. Blue light does not refer to a blue light source, it refers to high-energy visible light with a wavelength between 380-500nm, and the strongest blue light in visible light. It is commonly found in computers, projectors, laser pointers, LED displays, fluorescent lamps, Almost included in many obvious products such as LEDs, movie screens, and mobile phones.