What role does radar mirror play in photography?

The function of radome is mainly light beam, which has the function of making light have certain directionality. Make the flash light harder, so that it can be used in some places that need hard light source. For example, in order to show the texture of some objects, you can use this light on the bright side, or you can use this light on the bright side when taking some low-key photos, such as young men, to increase the light ratio of the picture.