Traditional Culture Encyclopedia - Photography and portraiture - Why is the time displayed in the mirror different from the actual time?

Why is the time displayed in the mirror different from the actual time?

Looking at the clock time in the mirror can master the following two principles:

1, specular reflection principle 1: the light on the left is reflected to the right. The clock observed in the mirror is reversed from the left to the right of the same object in reality.

2. Principle 2 of specular reflection: the light on the left is reflected to the right. The clock observed in the mirror is the same as the up and down of the same object in reality.

Then according to the above principle, the positions of 12 and 6 remain unchanged, so that 1 1 is opposite to clock 1, 10 is opposite to clock 2, 9 is opposite to clock 3, 8 is opposite to clock 4, and 7 is opposite to clock 5.

Specular reflection

Refers to the reflection of reflected waves (electromagnetic waves, or sound waves and water waves) in a certain direction; The included angle (reflection angle) between the reflected wave direction and the normal of the reflecting surface is equal to the included angle (incident angle) between the incident wave direction and the normal of the reflecting surface, and the incident wave and the reflected wave are in the same plane. When taking pictures, it is necessary to avoid the specular reflection light from 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 object itself in the photo.