What does the laser pointer time depend on?

The laser pointer poses a high powered laser hazard every time it is operated. If you are a remote external exposure point, you do not need to wear laser goggles. Remote laser lighting. Lasers do not scatter or reflect in the eye. The laser light causes reflection, scattering and diffusion only when the laser pointer is pointed at a short distance. A portion of the laser is focused on your eye. Watching it for a long time will make you dizzy. In this case, you'll need a pair of laser goggles. Technically? It is possible (sometimes) to reach the end of the universe. But really, it depends on the laser pointer. Today, some "laser designators" outside China are so powerful that they look like lightsabers, scattering dust particles in the atmosphere. Most laser Pointers produce milliwatts of power. If highly collimated, this is great for mileage. Laser safety is very important when using laser Pointers. Aim it at your eye or other vulnerable area and keep the laser beam away from your eye. The laser designator is converted to a 532 nm laser through a complex lateral flow of a 1064 nm infrared laser. It is not possible to project a laser beam directly from a laser diode. Lasers are expensive to make, but they are always safe.