laser light

Before the invention of electric lighting, humans were aware of the need for artificial light and always tried to 'dispel the darkness'.

Although the infant's retina is incomplete, the intensity of the light from the flash is not really high, and even for a brief moment, it cannot cause such a serious injury.

According to an aviation security officer, green laser lights can light the lights on the aircraft, affecting pilots driving airplanes.

Normal portable laser projectors are extremely dangerous for pilots, threatening safety to fly in the United States as well as many other countries, the act of shining laser lights

From an old DLP projector and a number of other devices, Drake Anthony created a 200W laser gun, enough to melt the metal casing.

Recent research warns that cheap laser pens that are widely sold in the market can hurt eyes.

Normally, to get different red-blue laser light sources in the same device (like a 3D Blu-ray drive), one would have to create three separate laser sources. These laser sources