So, if the position of your eyes is exactly where the mirror reflects the light, you will see that the light is as bright as a flashlight, and the brightness of the light on the paper is almost the same no matter where you look.

Glass has excellent properties and can be used in many occasions. Painted glass and hot-melt glass can be used for interior decoration with varied styles; When personal safety needs to be protected, it is advisable to use safety glass such as tempered glass and laminated glass. When it is necessary to adjust brightness and protect privacy, frosted glass and dimming glass are convenient and durable. Glass can reflect light, and diffuse reflection is the reason why we can see glass. Next, we will introduce what is diffuse reflection, and what is the difference between diffuse reflection and specular reflection.

When a parallel incident light hits a rough surface, the surface will reflect light in all directions. Therefore, although the incident light is parallel to each other, the reflected light is irregularly reflected in different directions because the normal directions of each point are inconsistent. This reflection is called diffuse reflection. Many objects, such as plants, walls, clothes, etc. They look smooth on the surface, but if you look closely with a magnifying glass, you will find that their surfaces are uneven.

People can see light in different directions because there is diffuse reflection on the surface of general objects. For example, if it is not diffuse reflection, students sitting in a corner can't see the words on the blackboard. Because the blackboard surface is uneven, it is not a mirror, so it is diffuse reflection. Diffuse reflection follows the law of light reflection just like specular reflection.