Directional Luminescence

- Jul 31, 2020-

Ordinary light sources emit light in all directions. In order to let the emitted light propagate in one direction, it is necessary to install a certain concentrating device on the light source. For example, the front light and the searchlight of the car are all equipped with reflective mirrors with concentrating effect, so that the radiation light can be gathered and emitted in one direction. The laser emitted by the laser is naturally emitted in one direction, and the beam divergence is very small, only about 0.001 radians, close to parallel.