别墅里的肉奴不准穿衣服_免费观看又色又爽又黄的韩国_双乳被一左一右的吸着_亚洲愉拍99热成人精品热久久_全是肉的高h短篇列车_精品无码国产污污污免费_国产一区二区三区在线视頻_继夫开荤粗肉hhhh_穿书之辣宠文里当女配

1、 What is the use of laser LEDs?
1. Laser lamps, also known as laser lamps, have essential differences from spotlights. The original Chinese name of laser is laser.

3. Our most common laser light application is medical equipment, such as laser skincare, which makes the skin delicate and smooth without leaving any marks, achieving good results.

4. Laser engraving technology can process materials such as glass, metal, wood, and fabric to carve the desired patterns.

5. Laser lamps are also widely used for stage effects, utilizing the penetrating propagation characteristics of lasers to beautify the entire stage scene performance.

2、 Can lasers harm the eyes?

1. Laser lamps are laser lamps that have the advantages of bright colors, high brightness, good directionality, long range, and easy control. As is well known, although lasers can create an atmosphere, they have potential harm to both the eyes and skin, especially the eyes. If you stare at the laser for a long time, it can cause great damage to the eyes.

2. The green laser commonly used in Stage lighting is harmful to human eyes. Generally speaking, the higher the power of the laser, the greater the damage. And the damage to the human eye caused by lasers is cumulative and irreversible, so don't look too much.

3. For some small Laser pointer, even if the power is not more than 5 milliwatts, it will still cause damage to people's eyes. Moreover, direct irradiation of people's eyes will also cause retinal burns, which may lead to blindness in serious cases. Therefore, if working in the environment of laser lights, it is necessary to take protective measures and strictly follow the regulations for operation.