Coating device configured to apply a coating agent to an object and detect a shape of the object after the application of the coating agent to the object

A coating device comprising:

• a coating gun configured to apply a coating agent to an object, the object having a first surface to which the coating agent is applied, and a second surface which is opposite of the first surface;
• a sensor device including a first optical sensor configured to radiate a first light to the first surface to detect a position of the first surface, and a second optical sensor configured to radiate a second light to the second surface to detect a position of the second surface, said first surface faces the first optical sensor and said second surface faces the second optical sensor;
• the first optical sensor and the second optical sensor being situated so that the first light and the second light overlay with each other to form a detection area in which the coating agent is detected on the object such that the object is situated across the between the first optical sensor and the second optical sensor, a bracket on which the coating gun and the sensor device are mounted;
• and a robot configured to hold and rotate the bracket about a predetermined first axis of rotation, wherein when the robot rotates the bracket from a first rotational position, at which the coating gun applies the coating agent to a position of the coating on the object, to a second rotational position in which the bracket is angularly changed by a predetermined rotational angle about the first axis of rotation, the detection area overlaps with the position of the coating and the first optical sensor and the second optical sensor face each other.