In a lateral inversion, the object’s left side becomes the right side of the image and vice-versa.
What is a lateral inversion?
Lateral inversion is a phenomenon in which the left appears to be right and vice versa. Due to the direction that light follows when it strikes a reflecting surface, generally a mirror. For example, the letter b, when laterally inverted, becomes the letter d (more or less). It is well-known that a plane mirror causes the apparent lateral inversion of objects.
- The light rays which come from the object get reflected from the plane mirror and reach our eye. So our brain feels that the ray (reflected ray) is coming from inside the mirror. That is why the right of the object looks like the left in the image.
- The word AMBULANCE is painted left-right inverted on the ambulance so that the driver can read in from the rearview mirror and make way for the ambulance.