What is the definition of specular reflection?

The definition of specular reflection

A beam of parallel light strikes a plane mirror, and the reflected light is parallel. This reflection is called specular reflection.

When a beam of light hits an uneven object, its reflected light also shoots in different directions, not parallel, so we can see the same object from different places, and this This reflection method is called "diffuse reflection". Otherwise, if it is all specular reflection, we can only see the object when we stand in a specific place.

Specular reflection refers to the reflection of a reflected wave (electromagnetic wave, or sound wave, water wave) with a certain direction; the direction of the reflected wave and the normal line of the reflection plane (reflection angle), and the direction of the incident wave and The angles between the normals of the reflection plane (angle of incidence) are equal, and the incident wave, reflected wave, and plane normal are in the same plane. When taking photos, you should avoid specular reflection light entering the camera lens. Because the specular reflection light is extremely strong, it will form a white bright spot on the photo, which will affect the appearance of the ground objects themselves on the photo.

Specular reflection follows the law of reflection of light.

The nature of the image produced by specular reflection is an upright, equal-sized virtual image located on opposite sides of the object.

Specular reflection means that when the incident light is parallel light, it is reflected to the smooth mirror surface and then goes out as parallel light. Specular reflection rules

1. The reflection angle is equal to the incident angle (equiangular)

2. The reflected light, the incident light, and the normal are in the same plane (*** plane) < /p>

3. The reflected light and incident light are located on both sides of the normal line. Diffuse reflection

Diffuse reflection is a phenomenon in which light projected on a rough surface is reflected in all directions. When a beam of parallel incident light rays hits a rough surface, the surface will reflect the light in all directions. Therefore, although the incident rays are parallel to each other, because the normal directions of each point are inconsistent, the reflected light rays will be reflected irregularly in different directions. This reflection is called "diffuse reflection" or "diffuse". This reflected light is called diffuse light. The surface of many objects, such as plants, walls, clothes, etc., may appear to be smooth at first glance, but if you look closely with a magnifying glass, you will see that the surface is uneven. Therefore, after the originally parallel sunlight is reflected by these surfaces, Shooting diffusely in different directions.

Diffuse reflection refers to the phenomenon that light is reflected irregularly in all directions by a rough surface. It shoots diffusely in different directions.

Diffuse reflection means that when the incident light is parallel light, it is reflected on rough objects, and the reflected light goes out in all directions.

When a beam of parallel light touches the surface of a smooth object, the light is reflected regularly, and the reflected light rays are also parallel to each other. This regular reflection is called unidirectional reflection or specular reflection of light. However, the smoothness of an object is relative, and the surface of general objects is rough and uneven. Although the incident rays are parallel rays, the reflected rays are scattered in all directions. This phenomenon is diffuse reflection of light. The reason why the human eye can see the entire object clearly is mainly due to the imaging of diffuse reflected light in the eye. If the surface of an object is completely unidirectionally reflective, not only will the appearance of the object be unclear, it will also cause glare interference in a certain direction.