A laser pointer that has a great effect in the fire house
For most people, high powered laser pointers and large laser transmitters are not familiar to anyone, so their intensity is different, and their uses are also very different. There are a variety of laser products on the market, one of which is a laser pointer, and the most popular is a green laser pointer. Not only the color is unique, but also powerful, and it is warm in all areas. Today I mainly introduce the green laser pointer. The peak wavelength of each complex is different, but the "luminous efficiency curve" below compares the visibility of each red wavelength of a 500mW laser pointer based on the "standard luminosity factor" perceived by the sum of the three. You can see that the middle wavelength range is the easiest to see.
Tags
Material
Laser pointer is a necessary but not sufficient condition to achieve population reversal. It not only generates laser light, but also minimizes the loss of the resonant cavity. Most of the cavity is parallel to the two mirrors that emit active materials. When bounce back and forth between one mirror, due to the excitation, only the amplification is satisfied. A certain threshold condition laser gains emission and continues to amplify greater than various losses. There is almost no doubt that the effective range of the laser pointer is 3 times the maximum range. However, as mentioned above, products with <1mW cannot reach 1 milliwatt, so there is no effective range of 210 meters even at night. The required laser pointer can usually reach 100-150 meters.
2021-11-12 08:57:12
Your Answer: