What is Concave (Focusing ) Mirrors?

Concave (Focusing ) Mirrors are often used in applications that require light collection. The reflective surface bend inwards to focus light toward the inner focal point. When the parallel light shines on concave mirrors. It reflects on the focal point in front of the mirror through its reflection. The reflective surface is the concave surface. The focus is in front of optical mirrors. When the light source is in focus, the emitted light forms a parallel beam after being reflected. The imaging effect is also different, when the distance between the concave mirror and the object is different.